Near Otis Chalk, Brachysuchus holotype (Triassic to of the United States)

Where: Howard County, Texas (32.1° N, 101.3° W: paleocoordinates 4.9° N, 40.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Colorado City Formation (Dockum Group), Carnian to Carnian (237.0 - 208.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; muddy conglomerate

Size class: macrofossils

Reposited in the UMMP

Primary reference: E. C. Case. 1929. Description of the skull of a new form of phytosaur, with notes on the characters of described North American phytosaurs. Memoirs of the University of Michigan Museums, Museum of Paleontology 2:1-56 [R. Butler/R. Butler/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135657: authorized by Richard Butler, entered by Richard Butler on 31.10.2012, edited by Matthew Carrano and Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Unionida - Unionidae
cf. Unio sp. Philipsson 1788 freshwater mussel
Reptilia
 Pseudosuchia -
Poposaurus gracilis1 Mehl 1915 archosaur
UMMP 11748, R ilium
 Phytosauria - Parasuchidae
"Promystriosuchus ehlersi n. gen. n. sp." = Paleorhinus ehlersi3, Brachysuchus megalodon n. gen. n. sp.
"Promystriosuchus ehlersi n. gen. n. sp." = Paleorhinus ehlersi3 Case 1922 archosaur
UMMP 7487 (holotype), partial skull
Brachysuchus megalodon n. gen. n. sp. Case 1929 archosaur
UMMP 10336, complete skull. UMMP 10336A, lower jaws probably belonging to same individual as type skull
Coelacanthimorpha
 Coelacanthiformes - Mawsoniidae
Chinlea sorenseni2 Schaeffer 1967 coelacanth
Osteichthyes
 Dipnoi -
Dipnoi indet. lungfish