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Gobiosuchidae

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Family of reptiles

Gobiosuchidae
Temporal range: Late Barremian - Late Campanian 129.4–71 Ma PreꞒ O S D C P T J K Pg N
A specimen of Gobiosuchus encased in armor
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Archosauria
Clade: Pseudosuchia
Clade: Crocodylomorpha
Clade: Crocodyliformes
Family: Gobiosuchidae
Osmólska, 1972

Gobiosuchidae is a family of Cretaceous crocodyliforms known from Mongolia and Spain.

Genera

Three genera are currently classified within Gobiosuchidae: Cassissuchus, Gobiosuchus, and Zaraasuchus.

Synapomorphies

According to Pol & Norell (2004), gobiosuchids form a clade united by the following synapomorphies:

  • Parietal without broad occipital portion
  • Absence of external mandibular fenestra
  • More than two parallel rows of dorsal osteoderms
  • Cranial table as wide as ventral portion of skull
  • Palpebrals sutured to each other and the frontal, excluding it from the orbital margin
  • External surface of ascending process of jugal exposed posterolaterally
  • Longitudinal ridge on lateral surface of jugal below infratemporal fenestra
  • Dorsal surface of posterolateral process of squamosal ornamented with three longitudinal ridges
  • Presence of a sharp ridge along ventral surface of angular
  • Surangular with a longitudinal ridge on its dorsolateral surface
  • Dorsal surface of osteoderms ornamented with anterolaterally and anteromedially directed ridges
  • Cervical region surrounded by lateral and ventral osteoderms sutured to the dorsal elements
  • Presence of appendicular osteoderms
  • Closed, or incipiently close, supratemporal fenestra

Sources

  • Pol, D. & Norell, M. A., (2004). "A new gobiosuchid crocodyliform taxon from the Cretaceous of Mongolia". American Museum Novitates 3458: 1-31.

References

  1. Ángela D. Buscalioni (2017) The Gobiosuchidae in the early evolution of Crocodyliformes. Journal of Vertebrate Paleontology Article: e1324459 doi: https://dx.doi.org/10.1080/02724634.2017.1324459 http://www.tandfonline.com/doi/full/10.1080/02724634.2017.1324459
Pseudosuchia
Sauropsida
Archosauromorpha
Pseudosuchia
    • see below↓
Pseudosuchia
Pseudosuchia
Ornithosuchidae
Suchia
Erpetosuchidae
Aetosauriformes
Aetosauria
Gracilisuchidae
Paracrocodylomorpha
    • see below↓
Ornithosuchus longidens

Erpetosuchus granti

Gracilisuchus stepanicicorum
Paracrocodylomorpha
Paracrocodylomorpha
Poposauroidea
Ctenosauriscidae
Poposauridae
Shuvosauridae
Loricata
Rauisuchidae
Crocodylomorpha
    • see below↓
Arizonasaurus babbitti

Effigia okeeffeae Saurosuchus galilei

Postosuchus kirkpatricki
Crocodylomorpha
Crocodylomorpha
Saltoposuchidae
Hallopodidae
Thalattosuchia
Crocodyliformes
Protosuchidae
Notochampsidae
Gobiosuchidae
Mesoeucrocodylia
Shartegosuchoidea
Shartegosuchidae
Metasuchia
Ziphosuchia
Neosuchia
Hesperosuchus agilis

Hoplosuchus kayi

Sichuanosuchus huidongensis
Taxon identifiers
Gobiosuchidae
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