Nos ha llegado un puesto de trabajo postdoctoral para el Field Museum de Chicago. Os lo adjuntamos
THE JOHN CALDWELL MEEKER POSTDOCTORAL FELLOW. Applications are invited for the position of the John Caldwell Meeker Postdoctoral Researcher in
the Earth Sciences Section, Science & Education, at The Field Museum.
The successful candidate will be expected to complement, and/ or
participate in any one of the ongoing research programs in the Section.
Research projects are being pursued in the areas of Vertebrate
Paleontology, Invertebrate Paleontology, and Meteoritics. Individual
curators and their research programs are featured on the Field Museum
website (http://fieldmuseum.org/explore/department/geology).
Applications will be reviewed both for merit and suitability with the
research and collections strengths of the department. Applicants are
strongly encouraged to contact curators they are interested in
collaborating with prior to submitting an application.
A Ph.D. in a field of research represented in the Earth Sciences Section
is required. The term for this position is for a maximum of two years.
The appointment is anticipated to begin in the summer of 2014 or soon
thereafter.
Please send a statement of research interests and experience, a
curriculum vitae including publications list, and names of three
referees (with e-mail addresses) to: Olivier Rieppel, Head of Earth
Sciences Section, The Field Museum, 1400 S. Lakeshore Dr., Chicago, IL
60605-2496 USA; e-mail: rieppel@fieldmuseum.org; phone: (312) 665-7630.
Applications must be received by June 1st, 2014. The Field Museum is an
equal opportunity employer.
viernes, marzo 21, 2014
jueves, marzo 20, 2014
El lince ibérico, Lynx pardinus, Carnivora, Mammalia
El
mamífero más querido de los conservacionistas actuales, lástima que no
haya sido así siempre, afortunadamente todo llega y en este caso de una
manera muy científica y muy interesante para los paleontólogos que
trabajamos en vertebrados pues tenemos a golpe de click un esqueleto
prácticamente completo del lince ibérico. Podemos girarlo, medirlo,
ampliarlo….como si tuviéramos cada hueso en las manos. Ojalá esta idea
sea más apoyada por los políticos y nos den dinero para hacer museos
virtuales de los vertebrados actuales…y fósiles.
Sueño con un
armario virtual de esqueletos de aves, dinosaurios, ratones gigantes y
todo lo que queramos soñar en esqueletos de vertebrados, para los
“coleccionistas de huesos” esta página web promete: http://www.thevirtualmuseumoflife.com/lynx/ Según Laura Ramírez, de la agencia EFE VERDE, el lince ibérico es el primer huésped del Museo Virtual de la Vida, un espacio para la divulgación científica que ha puesto a disposición del público el atlas digital del esqueleto de una de las especies índice en la conservación de la biodiversidad en España.
Un indicador del interés que ha despertado en el público es la gran cantidad de noticias generadas, sobre todo en la prensa sevillana, pero también en la prensa del resto de España e internacional.
Todos los enlaces están a continuación
AGENCIA EFE VERDE
http://www.efeverde.com/blog/noticias/el-lince-iberico-primer-huesped-del-museo-virtual-de-la-vida/
LA INFORMACIÓN
http://noticias.lainformacion.com/salud/investigacion-medica/el-lince-iberico-primer-huesped-del-museo-virtual-de-la-vida_w8EYcH518NAUcCNp9pqCy4/
EL CONFIDENCIAL
http://www.elconfidencial.com/ultima-hora-en-vivo/2014-03-09/el-lince-iberico-primer-huesped-del-museo-virtual-de-la-vida_195707/
LA VANGUARDIA
http://www.lavanguardia.com/local/sevilla/20140309/54402924047/el-lince-iberico-primer-huesped-del-museo-virtual-de-la-vida.html
TERRA
http://noticias.terra.es/ciencia/el-lince-iberico-primer-huesped-del-museo-virtual-de-la-vida,91e0a9688cd94410VgnCLD2000000dc6eb0aRCRD.html
EL DIARIO MONTAÑÉS
http://www.eldiariomontanes.es/agencias/20140309/mas-actualidad/sociedad/lince-iberico-primer-huesped-museo_201403091111.html
HOY
http://www.hoy.es/agencias/20140309/mas-actualidad/sociedad/lince-iberico-primer-huesped-museo_201403091111.html
ANDALUCÍA INFORMACIÓN- SEVILLA
http://andaluciainformacion.es/sevilla/386382/el-lince-iberico-primer-huesped-del-museo-virtual-de-la-vida/
LA VERDAD DE MURCIA
http://www.laverdad.es/agencias/20140309/mas-actualidad/sociedad/lince-iberico-primer-huesped-museo_201403091111.html
LA RIOJA
http://www.larioja.com/agencias/20140309/mas-actualidad/sociedad/lince-iberico-primer-huesped-museo_201403091111.html
EL IDEAL DE GRANADA
http://www.ideal.es/agencias/20140309/mas-actualidad/sociedad/lince-iberico-primer-huesped-museo_201403091111.html
EL CORREO VASCO
http://www.elcorreo.com/agencias/20140309/mas-actualidad/sociedad/lince-iberico-primer-huesped-museo_201403091111.html
IBEROAMÉRICA.NET
http://iberoamerica.net/espana/prensa-generalista/elconfidencial.com/20140309/noticia.html?id=UfN0D8f
EL NORTE DE CASTILLA
http://www.elnortedecastilla.es/agencias/20140309/mas-actualidad/vida-ocio/lince-iberico-primer-huesped-museo_201403091111.html
ANDALUCÍA CRÍTICO
http://andalucia.diariocritico.com/medio-ambiente/lince-museo-virtual-de-la-vida/436153
EL COMERCIO
http://www.elcomercio.es/agencias/20140309/mas-actualidad/sociedad/lince-iberico-primer-huesped-museo_201403091111.html
SUR
http://www.diariosur.es/agencias/20140309/mas-actualidad/sociedad/lince-iberico-primer-huesped-museo_201403091111.html
PARQUES DE MADRID
http://www.parque-madrid.es/noticias/
APRENDIZAJE VERDE MÉXICO
http://www.aprendizajeverde.net/
LA RAZON
http://www.larazon.es/detalle_normal/noticias/5800618/verde/el-lince-iberico-primer-huesped-del-museo-virtual-de-la-vida#.Ttt1g9wB0gFIwK9
miércoles, marzo 19, 2014
Dos puestos de trabajo en el Swedish Museum of Natural History
Nos ha llegado información de dos puestos de trabajo en el Swedish Museum of Natural History. Hay tiempo para solicitarlos hasta el 30 de Marzo
1) Head of the Department of Palaeobiology, Swedish Museum of Natural History
The Department of Palaeobiology was formed in March 2013 after the merger of the former departments of Palaeobotany and Palaeozoology. The department has extensive and valuable scientific collections in all areas of palaeontology and conducts world leading research in several fields, with emphasis on the origin and development of Cenozoic vertebrates, Palaeozoic invertebrates and seed-plants. Approximately twenty-five people work in the department. We are seeking a dynamic academic leader with experience in collections-based palaeobiology. The candidate has the ability to develop the department´s strengths in world-class, innovative research, collections management, and promotion of palaeontology to the broader public.
Duties
The position involves comprehensive planning and management, including personnel, budgetary and work environment responsibilities. Duties also include participation in management and development of the research sector within the museum, including participation in the steering committee, and implementing actions in priority areas of the museum´s operations. Emphasis will be given to consolidating and developing the new department´s operations. In addition to the managerial responsibilities, the position also provides opportunities within designated work time for the candidate´s own original research or other duties within palaeobiology.
Qualifications
You preferably have previous experience of staff and managerial duties. You must have extensive experience in collections-based work in palaeobiology. You preferably have a PhD in palaeobiology and evidence of scientific productivity at a high international level. Documented ability to obtain external research funding is meritorious, as is experience in conservation and public promotion of fossil collections of a diverse nature. You must be creative and dynamic and have good interpersonal skills. The ability to work in team is essential.
The Swedish Museum of Natural History can promote an employee to professor if she/he is found to have the required qualifications after an evaluation by external reviewers. The successful applicant may apply for such evaluation. The administrative language is Swedish and the candidate must have achieved
documented skills in speaking and reading Swedish within two years. Most current departmental heads within the Swedish Museum of Natural History are men; we encourage female candidates.
The applicant should provide
1. An application with CV/résumé.
2. Any other documents that the applicant wishes to submit focusing on
administrative experience and broader contributions to the development of the
field.
3. References to previous work.
4. A statement outlining the applicant´s vision for the strategic development of
research and collections management in the department.
The position is a full time permanent appointment with a six month probationary period.
Details are given by Per Ericson, Director of Science. Union representatives are Bodil Kajrup, SACO-S and Marianne Hamnede, ST. All can be reached at + 46 8-519 540 00. The complete application must be submitted to rekrytering@nrm.se or the Swedish Museum of Natural History, P. O. Box 50007, SE-104 05 STOCKHOLM latest 30 March 2014. Mark your application dnr 2.3.1-168-2014.
2) Researcher in Palaeobiology
Duties
Carry out independent collections-based research at a high international level in the fields of palaeozoology or pre-quaternary palaeobotany, including obtaining external research funding, publishing in leading international journals, presenting research results at international and domestic conferences, etc. The position also includes shared responsibility for documentation and digitalization, supervision of visitors, and dissemination of scientific knowledge to the public and schools. Also, when required, teaching student groups, supervising research students and mentoring postdoctoral researchers, and participating in other activities of the museum and department.
Qualifications
A PhD or equivalent in palaeontology is required. The successful applicant will be creative and dynamic with documented postdoctoral scientific production at a high international level. Ability to work in a team is essential, and the skills or experience to contribute to the administration and development of the research discipline are advantageous. Documented ability to obtain external research funding is meritorious, as is experience in management, practical enhancement, conservation and public promotion of fossil collections of a diverse nature.
This is an open search. Position and salary will be commensurate with the qualifications of the successful applicant. The Swedish Museum of Natural History can promote an employee to professor if she/he is found to have the required qualification after an evaluation by external reviewers. The successful applicant may apply for such an evaluation.
The applicant should provide
1. An application with CV/résumé.
2. A complete list of scientific publications.
3. Three copies each of the five most significant publications.
4. An account of previous experience in research and collections work.
5. An account of current research and research interest.
6. Any other relevant documentation the applicant wishes to provide.
Additional information
The position is a full time permanent appointment with a six month probationary period. The Swedish museum of Natural History strives for gender balance and ethic and cultural diversity among its staff.
Details are given by Per Ericson, Director of Science. Union representatives are Ove Johansson, SACO-S and Marianne Hamnede, ST. All can be reached at + 46 8 519 540 00. The complete application (in English) must be submitted to rekrytering@nrm.se or the Swedish Museum of Natural History, P. O. Box 50007, 104 05 STOCKHOLM latest 30 march 2014. Mark your application dnr 2.3.1-169-2014.
1) Head of the Department of Palaeobiology, Swedish Museum of Natural History
The Department of Palaeobiology was formed in March 2013 after the merger of the former departments of Palaeobotany and Palaeozoology. The department has extensive and valuable scientific collections in all areas of palaeontology and conducts world leading research in several fields, with emphasis on the origin and development of Cenozoic vertebrates, Palaeozoic invertebrates and seed-plants. Approximately twenty-five people work in the department. We are seeking a dynamic academic leader with experience in collections-based palaeobiology. The candidate has the ability to develop the department´s strengths in world-class, innovative research, collections management, and promotion of palaeontology to the broader public.
Duties
The position involves comprehensive planning and management, including personnel, budgetary and work environment responsibilities. Duties also include participation in management and development of the research sector within the museum, including participation in the steering committee, and implementing actions in priority areas of the museum´s operations. Emphasis will be given to consolidating and developing the new department´s operations. In addition to the managerial responsibilities, the position also provides opportunities within designated work time for the candidate´s own original research or other duties within palaeobiology.
Qualifications
You preferably have previous experience of staff and managerial duties. You must have extensive experience in collections-based work in palaeobiology. You preferably have a PhD in palaeobiology and evidence of scientific productivity at a high international level. Documented ability to obtain external research funding is meritorious, as is experience in conservation and public promotion of fossil collections of a diverse nature. You must be creative and dynamic and have good interpersonal skills. The ability to work in team is essential.
The Swedish Museum of Natural History can promote an employee to professor if she/he is found to have the required qualifications after an evaluation by external reviewers. The successful applicant may apply for such evaluation. The administrative language is Swedish and the candidate must have achieved
documented skills in speaking and reading Swedish within two years. Most current departmental heads within the Swedish Museum of Natural History are men; we encourage female candidates.
The applicant should provide
1. An application with CV/résumé.
2. Any other documents that the applicant wishes to submit focusing on
administrative experience and broader contributions to the development of the
field.
3. References to previous work.
4. A statement outlining the applicant´s vision for the strategic development of
research and collections management in the department.
The position is a full time permanent appointment with a six month probationary period.
Details are given by Per Ericson, Director of Science. Union representatives are Bodil Kajrup, SACO-S and Marianne Hamnede, ST. All can be reached at + 46 8-519 540 00. The complete application must be submitted to rekrytering@nrm.se or the Swedish Museum of Natural History, P. O. Box 50007, SE-104 05 STOCKHOLM latest 30 March 2014. Mark your application dnr 2.3.1-168-2014.
2) Researcher in Palaeobiology
Duties
Carry out independent collections-based research at a high international level in the fields of palaeozoology or pre-quaternary palaeobotany, including obtaining external research funding, publishing in leading international journals, presenting research results at international and domestic conferences, etc. The position also includes shared responsibility for documentation and digitalization, supervision of visitors, and dissemination of scientific knowledge to the public and schools. Also, when required, teaching student groups, supervising research students and mentoring postdoctoral researchers, and participating in other activities of the museum and department.
Qualifications
A PhD or equivalent in palaeontology is required. The successful applicant will be creative and dynamic with documented postdoctoral scientific production at a high international level. Ability to work in a team is essential, and the skills or experience to contribute to the administration and development of the research discipline are advantageous. Documented ability to obtain external research funding is meritorious, as is experience in management, practical enhancement, conservation and public promotion of fossil collections of a diverse nature.
This is an open search. Position and salary will be commensurate with the qualifications of the successful applicant. The Swedish Museum of Natural History can promote an employee to professor if she/he is found to have the required qualification after an evaluation by external reviewers. The successful applicant may apply for such an evaluation.
The applicant should provide
1. An application with CV/résumé.
2. A complete list of scientific publications.
3. Three copies each of the five most significant publications.
4. An account of previous experience in research and collections work.
5. An account of current research and research interest.
6. Any other relevant documentation the applicant wishes to provide.
Additional information
The position is a full time permanent appointment with a six month probationary period. The Swedish museum of Natural History strives for gender balance and ethic and cultural diversity among its staff.
Details are given by Per Ericson, Director of Science. Union representatives are Ove Johansson, SACO-S and Marianne Hamnede, ST. All can be reached at + 46 8 519 540 00. The complete application (in English) must be submitted to rekrytering@nrm.se or the Swedish Museum of Natural History, P. O. Box 50007, 104 05 STOCKHOLM latest 30 march 2014. Mark your application dnr 2.3.1-169-2014.
miércoles, marzo 12, 2014
Caracterización paleoambiental y paleoclimática del último periodo del Último Máximo Glaciar
Los datos para la realización de este estudio provienen de los yacimientos: la Cueva del Mirón (Ramales de la Victoria, Cantabria), Valdavara-1 (Becerreá, Lugo), El Portalón (Sierra de Atapuerca, Burgos), y la Sala de las Chimeneas (Maltravieso, Cáceres). A partir de estos datos se ha podido ver la presencia de especies tanto de condiciones climáticas medio-europeas, como los topillos Chionomys nivalis, Microtus arvalis, Microtus agrestis o Microtus oeconomus, como de las especies asociadas con los requerimientos mediterráneos, como Microtus (Iberomys) cabrerae o Microtus (Terricola) duodecimcostatus.
Gracias a este estudio, se ha podido observar como al final del Último Máximo Glacial, se registró un clima más frío que hoy en día en los diferentes yacimientos estudiados, pero más benigno en la Península Ibérica que en otros lugares de Europa, con temperaturas medias anuales más bajas que en la actualidad y un entorno dominado por prados húmedos.
La referencia completa es: Bañuls-Cardona, S., López-García, J.M., Blain, H.A., Lozano-Fernández, I., Cuenca-Bescós, G. 2014. The end of the Last Glacial Maximum in the Iberian Peninsula characterized by the small-mammal assemblages. Journal of Iberian Geology, 40(1), 19-27.
La fotografía es del yacimiento de El Portalón
martes, marzo 11, 2014
Humans and landscape dynamics during the Quaternary in Spain
Nuestra aragosaurera Gloria Cuenca va a presentar una comunicación en el prestigioso congreso: Cell Sitges. Está organizado por la editorial de la revista Cell, la de mayor impacto científico. El título de la comunicación es: Humans and landscape dynamics during the Quaternary in Spain. Se presentará en la Sesion Martes 18 marzo 2014, posters 2, P2.17: The small vertebrate proxy
La página web del congreso: http://www.cell-symposia-humanevolution.com/
Nos ha mandado una reseña del congreso que compartimos con todos vosotros.
¿Cómo nuestra especie, Homo sapiens , se convierten en lo que es hoy ? ¿Cómo evolucionan? El estudio de estas fascinantes preguntas ha visto una verdadera revolución en los últimos años : la secuenciación del genoma de los humanos y primates relacionados antiguos y actuales , ha revelado nuestra historia evolutiva con detalle.
Nuevos análisis paleontológicos y arqueológicos revelan lo que hace a los humanos tan único. ' Evolución de los humanos modernos - De Huesos a Genomas ' el Cell Symposio de Siges, marzo 2014, rinde homenaje a esta revolución , reuniendo a una combinación amplia de investigadores de talla mundial que estudian la evolución de nuestra especie desde varios ángulos - desde la paleoantropología a la genética, la genómica y la archaeogenetica , a través del estudio de los procesos culturales y cognitivos. Esta reunión sintetizará nuestra imagen actual de la evolución de los humanos modernos y formulara las preguntas más interesantes para la investigación futura.
lunes, marzo 10, 2014
Recolonización post-glacial de las musarañas y erizos en Europa occidental
El proyecto de investigación, que lleva por título “Recolonización post-glacial e impacto antrópico en poblaciones de musarañas y erizos de Europa Occidental inferidos a partir de la arqueozoología, la biogeografía histórica y la modelización ecológica”, se llevará a cabo en el Museo de Historia Natural de París, en la UMR 7209 (CNRS) dedicada a la arqueozoología y la arqueobotánica, en coordinación con especialistas de distintas disciplinas (biogeografía histórica, modelización ecológica, morfometría geométrica, geoquímica) y diversas nacionalidades (Francia, España, Bélgica, Reino Unido e Irlanda).
A continuación, una síntesis de los alcances del proyecto: Al final de la última glaciación, hace unos 15.000 años cal., los pequeños mamíferos que habían subsistido en refugios glaciales del sur de Europa durante el último Pleniglacial empezaron a extenderse otra vez hacia el norte. Este desplazamiento, que duró varios milenios —y que aún sigue en curso en unos pocos casos— ha sido analizado por la filogeografía sobre la base de estudios moleculares. Comparativamente, poco se ha trabajado en base a datos arqueozoológicos, especialmente de insectívoros, grupo que a menudo se deja de lado en reconstrucciones paleoambientales y paleoclimáticas. Más aún, las hipótesis filogeográficas derivadas de datos moleculares se ven muy limitadas por las perturbaciones humanas (p.ej. antropización de territorios, introducción de especies foráneas, fractura de ecosistemas) que han remodelado los patrones filogenéticos de muchos taxones europeos desde la aparición de la agricultura hace unos 7.500 años. Lo que el equipo se propone hacer es reconstruir el proceso de recolonización post-glacial de varias especies de musarañas y del erizo europeo en Europa Occidental basándose en restos bien datados y georeferenciados. Con este fin se utilizará 1) la base de datos I2AF, diseñada por el propio MNHN de París, que recopila una gran cantidad de registros bioarqueológicos; 2) datos derivados de la literatura; 3) el aporte de nuevos datos de restos de insectívoros procedentes de yacimientos de Francia, España, Bélgica, Reino Unido e Irlanda.
Estos datos serán formalizados utilizando técnicas de modelización de nichos ecológicos e integrados con información sobre el clima, la vegetación y las líneas de costa, que evolucionaron significativamente durante este período. En consecuencia, se espera producir modelos dinámicos que contribuyan 1) a entender cómo se formaron las comunidades de pequeños mamíferos a comienzos del Holoceno, y 2) a reconstruir cómo era la distribución de varias especies de insectívoros antes de la antropización de entornos naturales que se dio durante los últimos 7.500 años. Esto podría tener importantes aplicaciones para el manejo y conservación de las especies estudiadas en Europa.
Puesto de trabajo en el American Museum of Natural History
Nos ha llegado una propuesta de trabajo del American Museum of Natural History de Nueva York. Os la adjuntamos
The Division of Paleontology at the American Museum of Natural History is offering a small number of full-time, 8-week internships for graduate or undergraduate students in geology, invertebrate paleontology, life sciences, museum studies, or related fields (June 16, 2014 start). The interns will participate in an NSF-funded project to upgrade the microfossil collections in the Invertebrate Paleontology collection at AMNH. A summary of the project can be found here:
http://www.nsf.gov/awardsearch/showAward?AWD_ID=1203394&HistoricalAwards=false
A website documenting the progress of this project, including a blog by summer 2013 interns can be found here:
http://www.amnh.org/our-research/paleontology/collections/fossil-invertebrates/microfossil-conservation-and-digitization
The interns will work with collection management staff to rehouse, conserve and catalog specimens, to digitally image and CT scan primary type specimens and upgrade on-line collections data.
A stipend will be provided as support over the internship period.
Required Qualifications:
Applicants should be enrolled in an undergraduate or graduate degree course, or about to apply to a graduate course in invertebrate paleontology, life sciences, museum studies, or related fields. Ability to work with paleontological research collections, ability to perform tasks requiring physical strength and high manual dexterity, proficiency in the use of Mac and PC based software, good organizational, excellent interpersonal skills, and ability to work independently. Experience working in museum collections a plus.
Interested parties should apply online:
careers.amnh.org/applicants/Central?quickFind=51218
The Division of Paleontology at the American Museum of Natural History is offering a small number of full-time, 8-week internships for graduate or undergraduate students in geology, invertebrate paleontology, life sciences, museum studies, or related fields (June 16, 2014 start). The interns will participate in an NSF-funded project to upgrade the microfossil collections in the Invertebrate Paleontology collection at AMNH. A summary of the project can be found here:
http://www.nsf.gov/awardsearch/showAward?AWD_ID=1203394&HistoricalAwards=false
A website documenting the progress of this project, including a blog by summer 2013 interns can be found here:
http://www.amnh.org/our-research/paleontology/collections/fossil-invertebrates/microfossil-conservation-and-digitization
The interns will work with collection management staff to rehouse, conserve and catalog specimens, to digitally image and CT scan primary type specimens and upgrade on-line collections data.
A stipend will be provided as support over the internship period.
Required Qualifications:
Applicants should be enrolled in an undergraduate or graduate degree course, or about to apply to a graduate course in invertebrate paleontology, life sciences, museum studies, or related fields. Ability to work with paleontological research collections, ability to perform tasks requiring physical strength and high manual dexterity, proficiency in the use of Mac and PC based software, good organizational, excellent interpersonal skills, and ability to work independently. Experience working in museum collections a plus.
Interested parties should apply online:
careers.amnh.org/applicants/Central?quickFind=51218
sábado, marzo 08, 2014
Lo que nos dicen las icnitas de los saurópodos ibéricos sobre su comportamiento
El registro Ibérico (España y Portugal) de icnitas de saurópodos está representado por más de cien yacimientos en un intervalo temporal del Jurásico Medio (Batoniense) al Cretácico Superior (Maastrichtiense). Muchos de ellos conservan varias icnitas del mismo individuo ordenadas en rastros. Precisamente el estudio detallado de estos rastros en un área geográfica como es la Península Ibérica a lo largo del tiempo ha permitido hacer algunas inferencias paleoecológicas sobre donde y como vivieron los saurópodos ibéricos
Los rastros de los saurópodos ibéricos presentan dos patrones de movimiento distintos. Los hay claramente que siguen una dirección (direccionales) y otros completamente aleatorios. Los rastros formados con un comportamiento claramente gregario, es decir con rastros paralelos, se observan en los icnotipos “Parabrontopodus/Breviparopus-like” y “ Brontopodus- like” en saurópodos del mismo tamaño (pequeño o medio), lo que indica segregación por edad. Las icnitas de tipo Parabrontopodus/Breviparopus-like se ha conservado en sedimentos depositados en ambientes terrestres mientras que los de Brontopodus- like lo hace fundamentalmente en ambientes costeros.
Los rastros formados por individuos solitarios son, en su mayoría, de saurópodos de tamaño medio o grande, conservados tanto en medios terrestres, como costeros y pertenecen a los dos icnotipos mencionados anteriormente y a un tercero: “Polyonyx-like”. Por lo tanto, no hay una significativa influencia paleoambiental en el registro del comportamiento gregario de los saurópodos ibéricos. Sin embargo, los rastros que muestran caracteres de saurópodos Titanosauriformes (Brontopodus -like) son más frecuentes en los medios costeros de la Península Ibérica. Estos resultados son diferentes a los expuestos por otros autores que apuntan una aparente preferencia de los Titanosauriformes por los medios terrestres.
El resumen original es
More than a hundred sauropod tracksites, ranging in age from Middle Jurassic (Bathonian) to Late Cretaceous (Maastrichtian), are repor ted from the Iberian Peninsula (Spain and Portugal). Sauropod trackway orientation patterns throughout an entire geographic area such as the Iberian Peninsula and over different time periods may provide new data about the palaeoecology and behavioural patterns of sauropods. The studied tracksites exhibit two main trackway orientation patterns, directional and random, indicating different behaviours in gregarious or solitary (milling) individuals. Gregarious behavioural patterns are mainly observed within Parabrontopodus/Breviparopus-like and Brontopodus-like ichnotypes of a single size class (either small or medium-sized), indicating age segregation.
Among the gregarious sauropods the former ichnotype is linked with inland environments, while the latter is mainly linked with coastal environments. Solitary trackways are mainly of medium-sized to large individuals, are also linked with both inland (Parabrontopodus/Breviparopus-like) and coastal environments (Parabrontopodus/Breviparopus-like, Brontopodus-like), and belong to the above-mentioned ichnotypes as well as to Polyonyx-like ichnotypes. Thus, no obvious link between gregarious behaviour and the palaeoenvironmental setting can be inferred from the sauropod track record of the Iberian Peninsula. Nonetheless, sauropod trackways showing titanosauriform characters (Brontopodus-like) are more common in coastal environments, contrary to what might be expected given this group’s apparent taxonomic preference for inland environments
La referencia completa es. Castanera, D., Vila, B., Razzolini, N.L., Santos, V.F., Pascual, C., Canudo, J.I. 2014. Sauropod trackways of the iberian Peninsula: palaeotological and palaeoenvironmental implications. Journal of Iberian Geology, 40, 1, 49-59.
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