Ticinosuchus

Ticinosuchus
Rango temporal: Triásico Medio, Anisiense-Ladiniense
Taxonomía
Reino: Animalia
Filo: Chordata
Clase: Sauropsida
Orden: Rauisuchia
Familia: Prestosuchidae
Género: Ticinosuchus
Krebs, 1965
Especies

Ticinosuchus (Cocodrilo de Ticinio) es un género extinto de arcosaurio rauisuquio que vivió durante el Triásico Medio (Anisiense - Ladiniense) en Suiza e Italia.[1]​ Este poderoso carnívoro, semejante a un cocodrilo, tenía una coraza con pequeñas placas óseas, incluyendo su cola.

Descripción

Icnita de Cheirotherium, la cual pudo haber sido hecha por Ticinosuchus, exhibida en el Museo de Historia Natural de la Universidad de Oxford.
Fósil de Ticinosuchus ferox

Ticinosuchus medía cerca de 3 metros de largo, y su cuerpo completo incluso su vientre, estaba recubierto de gruesos osteodermos (escudos óseos). Se ha considerado que estos escudos se encontraban distribuidos de forma escalonada, con varias filas que alternaban.[2]​ Sin embargo, algunos estudios han refutado esta idea, proponiendo en cambio que los escudos estaban alineados en filas prolijas, estando asignados de uno en uno junto con las vértebras.[3]​ La estructura de las caderas muestra que sus patas estaban situadas bajo su cuerpo de manera casi vertical. Esto junto al desarrollo de un calcáneo y una articulación del tobillo especializada, eso habría hecho de Ticinosuchus un rápido corredor, a diferencia de muchos reptiles primitivos.[4]

Referencias

  1. Sterling J. Nesbitt (2011). «The Early Evolution of Archosaurs: Relationships and the Origin of Major Clades». Bulletin of the American Museum of Natural History 352: 1-292. doi:10.1206/352.1. 
  2. Nesbitt, Sterling J.; Sidor, Christian A.; Angielczyk, Kenneth D.; Smith, Roger M. H.; Tsuji, Linda A. (19 de septiembre de 2014). «A new archosaur from the Manda beds (Anisian, Middle Triassic) of southern Tanzania and its implications for character state optimizations at Archosauria and Pseudosuchia». Journal of Vertebrate Paleontology (en inglés) 34 (6): 1357-1382. ISSN 0272-4634. doi:10.1080/02724634.2014.859622. 
  3. Ezcurra, Martín D. (28 de abril de 2016). «The phylogenetic relationships of basal archosauromorphs, with an emphasis on the systematics of proterosuchian archosauriforms». PeerJ (en inglés) 4: e1778. ISSN 2167-8359. PMC 4860341. PMID 27162705. doi:10.7717/peerj.1778. 
  4. Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. Londres: Marshall Editions. p. 95. ISBN 1-84028-152-9. 

Bibliografía

  • Krebs, B. (1965). Ticinosuchus ferox nov. gen. nov. sp. Ein neuer Pseudosuchier aus der Trias des Monte San Giorgio. Neues Jahrbuch fur Geologie und Paläontology, Abhandlungen 81: 1-140.
  • Sill, W.D. (1974). The anatomy of Saurosuchus galilei and the relationships of the rauisuchid thecodonts. Bulletin of the Museum of Comparative Zoology 146: 317-362.

Enlaces externos

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