New skulls and skeletons of the Cretaceous legged snake Najash , and the evolution of the modern snake body plan

Author:

Garberoglio Fernando F.1ORCID,Apesteguía Sebastián1ORCID,Simões Tiago R.2ORCID,Palci Alessandro34ORCID,Gómez Raúl O.5ORCID,Nydam Randall L.6ORCID,Larsson Hans C. E.7,Lee Michael S. Y.34ORCID,Caldwell Michael W.28

Affiliation:

1. CONICET, Área de Paleontología, Fundación de Historia Natural Félix de Azara, CEBBAD, Universidad Maimónides, Hidalgo 775, 1405 Buenos Aires, Argentina.

2. Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada.

3. College of Science and Engineering, Flinders University, Adelaide, SA 5042, Australia.

4. Earth Sciences Section, South Australian Museum, North Terrace, Adelaide, SA 5000, Australia.

5. CONICET, Departamento de Biodiversidad y Biología Experimental/Departamento de Ciencias Geológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina.

6. Arizona College of Osteopathic Medicine, Midwestern University, 19555 N. 59th Ave., Glendale, AZ 85383, USA.

7. Redpath Museum, McGill University, 859 Sherbrooke Street W., Montreal, Quebec H3A 0C4, Canada.

8. Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada.

Abstract

New fossils from the legged snake Najash reveal the evolutionary origins of key features of the modern snake skull and body.

Funder

National Geographic Society

Australian Research Council

NSERC Discovery Grant

FONCYT

Canadian Foundation of Innovation

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference71 articles.

1. The oldest known snakes from the Middle Jurassic-Lower Cretaceous provide insights on snake evolution

2. A snake with legs from the marine Cretaceous of the Middle East

3. Un nouveau serpent bipéde du Cénomanien (Cretacé). Implications phylétiques;Rage J.-C.;C. R. Acad. Sci. Paris Earth Sci.,2000

4. Exceptionally preserved skeletons of the Cretaceous snakeDinilysia patagonicaWoodward, 1901

5. The anatomy and relationships of Haasiophis terrasanctus, a fossil snake with well-developed hind limbs from the mid-Cretaceous of the Middle East;Rieppel O.;J. Paleontol.,2003

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