Where: Texas (30.4° N, 103.2° W: paleocoordinates 1.4° N, 33.2° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Willis Ranch Member (Word Formation), Roadian (272.3 - 268.8 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: lithified limestone
Size class: macrofossils
Preservation: replaced with silica
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 102614: authorized by Matthew Clapham, entered by Matthew Clapham on 17.01.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Craniata | |
Lepidocrania sublamellosa2 Cooper and Grant 1974 | |
Rhynchonellata | |
Rhynchopora palumbula2 Cooper and Grant 1976 | |
Cenorhynchia fracida2 Cooper and Grant 1976 | |
Petasmatherus opulus2 Cooper and Grant 1969 | |
"Neophricadothyris sp." = Phricodothyris2
"Neophricadothyris sp." = Phricodothyris2 George 1932 | |
Spiriferella gravis2 Cooper and Grant 1976 | |
Composita enormis2 Cooper and Grant 1976 | |
Thedusia procera2 Cooper and Grant 1976 | |
Spiriferellina hilli2 Girty 1908 | |
Pseudodielasma sp.2 Brill 1940 | |
Ectoposia grandis2 Cooper and Grant 1976
Dielasma sp.2 King 1856
Dielasma zebratum2 Cooper and Grant 1976 | |
Glossothyropsis rectangulata2 Cooper and Grant 1976 | |
Heterelasma concavum2 Cooper and Grant 1976 | |
Strophomenata | |
Undulella undulata2, Dyoros (Dyoros) extensus2, Dyoros (Tetragonetes) giganteus2, Dyoros (Lissosia) concavus2
Undulella undulata2 Cooper and Grant 1969
Dyoros (Dyoros) extensus2 Cooper and Grant 1975
Dyoros (Tetragonetes) giganteus2 Cooper and Grant 1975
Dyoros (Lissosia) concavus2 Cooper and Grant 1975 | |
Cyclacantharia kingorum2 Cooper and Grant 1969 | |
Collemataria elongata2 Cooper and Grant 1974 | |
Liosotella wordensis2 King 1931
Paucispinifera auriculata2 Muir-Wood and Cooper 1960 | |
Echinauris lateralis2 Muir-Wood and Cooper 1960 | |
Yakovlevia hessorum2 Cooper and Grant 1975 | |
Grandaurispina kingorum2 Muir-Wood and Cooper 1960
Cancrinella subquadrata2 Cooper and Grant 1975 | |
Cactosteges anomalus2 Cooper and Grant 1975
Rhamnaria kingorum2 Muir-Wood and Cooper 1960
Echinosteges tuberculatus2 King 1931
Xenosteges quadratus2 Cooper and Grant 1975 | |
Cooperina inexpectata2 Termier et al. 1966 | |
Heteralosia hystricula2 Girty 1908 | |
Derbyia sp.2 Waagen 1884 | |
Trilobita | |
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