east bank of Blanco River (Triassic to of the United States)

Also known as White River

Where: Crosby County, Texas (33.6° N, 101.1° W: paleocoordinates 6.3° N, 39.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: crevasse splay; sandy claystone and gypsiferous, pyritic, yellow, sandy claystone

• "evidently accumulated in some isolated hole distinct from the nearest large area of river deposit"
• "sand and sandy clay"; upper part of deposit is "sandy clay"; lower part is "a light-colored clay with included grains of sand, abundant traces of badly decayed vegetation, and lumps of charcoal. This part of the clay was filled with gypsum...[and] in many places, a thin layer of pyrite...Some parts of the matrix were very hard and colored a deep black"

Size class: macrofossils

Collected by E. Case, W. Buettner in 1917, 1925; reposited in the UMMP

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: E. C. Case. 1920. Preliminary description of a new suborder of phytosaurian reptiles with a description of a new species of Phytosaurus. Journal of Geology 28(6):524-535 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 71977: authorized by Matthew Carrano, entered by Matthew Carrano on 18.05.2007, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Pseudosuchia - Stagonolepididae
Tecovasuchus chatterjeei Martz and Small 2006 aetosaur
UMMP 9600, right paramedian plate
Desmatosuchus spurensis n. sp. Case 1920 aetosaur
UMMP 7476 (holotype), partial skeleton. UMMP 7504, second individual. UMMP 7331, lateral plates