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.