Where: Culberson County, Texas (31.7° N, 104.2° W: paleocoordinates 1.1° N, 34.2° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Virginia Draw Member (Rustler Formation), Changhsingian (254.2 - 252.2 Ma)
• Early Changhsingian based on conodonts.
• member-level stratigraphic resolution
Environment/lithology: marine; dolomite and siltstone
Size class: macrofossils
Preservation: original calcite, replaced with other
Collection methods: chemical, hydrochloric,
• Anhydrite-replaced fossils etched by hydrochloric acid.
Primary reference: J. C. Walter. 1953. Paleontology of Rustler Formation, Culberson County, Texas. Journal of Paleontology 27(5):679-702 [D. Bottjer/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 50011: authorized by David Bottjer, entered by Matthew Clapham on 04.05.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
| |
Scaphopoda | |
Dentalium sp. Linnaeus 1758 tusk shell | |
Strophomenata | |
Derbyia sulcata Walter 1953 |