Double U Ranch, SE of Post (Triassic of the United States)

Where: Garza County, Texas (33.2° N, 101.4° W: paleocoordinates 7.9° N, 41.5° W)

• coordinate stated in text

• hand sample-level geographic resolution

When: Cooper Canyon Formation (Dockum Group), Norian (228.0 - 208.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by E. Shedd in 1989; reposited in the DMNH

Collection methods: surface (in situ),

Primary reference: B.J. Small. 1997. A new procolophonid from the Upper Triasic of Texas, with a description of tooth replacement and implantation. Journal of Vertebrate Paleontology 17(4):674-678 [J. Mueller/J. Dummasch]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 79947: authorized by Johannes Mueller, entered by Jana Dummasch on 28.03.2008, edited by Bryan Gee and Tom Forêt

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
cf. Procoelosaurus sp.1
cf. Procoelosaurus sp.1
TTU P-10777, vertebra
Reptilia
 Parareptilia - Procolophonidae
Libognathus sheddi n. gen. n. sp.
Libognathus sheddi n. gen. n. sp. Small 1997 parareptile
DMNH 20491 (type)
 Pseudosuchia - Stagonolepididae
Garzapelta muelleri n. gen. n. sp.2, cf. Rioarribasuchus sp.1
Garzapelta muelleri n. gen. n. sp.2 Reyes et al. 2024 aetosaur
TTU-P 10449, an associated skeleton preserving several paramedian and lateral osteoderms from the cervical to caudal regions, trunk ribs, and a fragmentary podial
cf. Rioarribasuchus sp.1 Lucas et al. 2006 aetosaur
TTU P-10449, osteoderms and ribs
1Martz 2008; 2Reyes et al. 2024