- Gobiosuchidae
Taxobox
name = Gobiosuchidae
fossil_range =Late Cretaceous
regnum =Animal ia
phylum = Chordata
classis = Sauropsida
subclassis =Diapsid a
infraclassis =Archosauromorpha
unranked_ordo =Crurotarsi
superordo =Crocodylomorpha
unranked_familia =Crocodyliformes
familia = Gobiosuchidae
familia_authority = Osmólska, 1972
subdivision_ranks = Genera
subdivision = "Gobiosuchus " "Zaraasuchus "Gobiosuchidae was a family of
Late Cretaceous crocodyliforms that lived in what is now theGobi Desert inMongolia .Genera
The two genera currently classified within Gobiosuchidae are "
Gobiosuchus " and "Zaraasuchus ".Synapomorphies
According to Pol & Norell (2004), gobiosuchids form a
clade united by the followingsynapomorphies :* 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 fenestraReferences
* Pol, D. & Norell, M. A., (2004). A new gobiosuchid crocodyliform taxon from the Cretaceous of Mongolia. "American Museum Novitates" 3458: 1-31.
External links
* [http://diglib1.amnh.org/novitates/i0003-0082-458-01-0001.pdf Pol & Norell (2004)]
Wikimedia Foundation. 2010.
