Where: Texas (30.4° N, 103.2° W: paleocoordinates 1.6° N, 33.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Word Formation, Wordian (266.9 - 264.3 Ma)
• Lowermost of 2 lenses between Willis Ranch Member and Appel Ranch Member
• group of beds-level stratigraphic resolution
Environment/lithology: lithified limestone
Size class: macrofossils
Preservation: replaced with silica
Reposited in the USNM
Collection methods: bulk, chemical,
Primary reference: G. A. Cooper and R. E. Grant. 1972. Permian brachiopods of west Texas, I. Smithsonian Contributions to Paleobiology 14:1-231 [D. Bottjer/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 106291: authorized by Matthew Clapham, entered by Matthew Clapham on 06.03.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
| Strophomenata | |
|
Dyoros (Dyoros) convexus Cooper and Grant 1975 | |
|
Meekella skenoides Girty 1908 | |
|
Grandaurispina elongata Cooper and Grant 1975
Grandaurispina crassa Cooper and Grant 1975 | |
|
Liosotella wordensis King 1931 | |
|
Echinauris lateralis Muir-Wood and Cooper 1960 | |
|
Cyclacantharia kingorum Cooper and Grant 1969 | |
|
Pseudoleptodus grandis Cooper and Grant 1974
Eolyttonia progressa Cooper and Grant 1974 | |
|
Xenosteges quadratus Cooper and Grant 1975 | |
| Rhynchonellata | |
|
Paraspiriferina rotundata Cooper and Grant 1976 | |
|
Arionthia germana Cooper and Grant 1976 | |
|
Reticulariina cerina Cooper and Grant 1976 | |
|
Hustedia sp. Hall and Clarke 1893 | |
|
Composita parasulcata Cooper and Grant 1976 | |
|
Neospirifer amphigyus Cooper and Grant 1976 | |
|
Spiriferella sp. Tschernyschew 1902 | |