Ebrachosuchus neukami Kuhn, 1936

Holotype.

SNSB-BSPG 1931 X 501, complete cranium lacking most teeth except for three maxillary ones (Fig. 15 C).

Type locality.

Former quarry at Ebrach, Bamberg district, Bavaria.

Type horizon.

Bed 9, Blasensandstein, Middle Keuper Subgroup. Age: Late Triassic (Carnian: Tuvalian).

Diagnosis.

Distinguished by the following autapomorphies: antorbital length of cranium more than 3.8 times that of combined orbit and postorbital lengths; premaxilla and maxilla with total of more than 50 teeth; pronounced, sharp flange along lateral surface of dorsal process of jugal and ventral process of postorbital continuous posteriorly with lateral margin of postorbital – squamosal bar; infratemporal fenestra much longer anteroposteriorly than deep dorsoventrally, terminating anteriorly at level of midpoint of orbit; quadrate foramen greatly enlarged, approximately two-thirds of width of foramen magnum; and alveolar ridges absent from anterior portion of maxilla and only poorly developed on premaxilla (Butler et al. 2014).

Comments.

Kuhn (1936) named Ebrachosuchus neukami based on a well-preserved skull (SNSB-BSPG 1931 X 501) that is readily distinguished from those of “ Francosuchus ” spp. by its greatly elongated snout. Gregory (1962) synonymized Ebrachosuchus with Francosuchus and the combined genus with “ Paleorhinus ” but retained neukami as a distinct species. Chatterjee (1978) considered Ebrachosuchus a valid genus, which he considered ancestral to the long-snouted mystriosuchine parasuchid Mystriosuchus. Butler et al. (2014) provided a detailed description of SNSB-BSPG 1931 X 501. In their phylogenetic analysis of Phytosauria, Jones and Butler (2018) found Ebrachosaurus more closely related to Mystriosuchinae than to Parasuchus.

References.

Kuhn (1936), Gregory (1962), Chatterjee (1978), Butler et al. (2014), Jones and Butler (2018).