Where: Texas (30.4° N, 103.2° W: paleocoordinates 1.4° N, 33.2° W)
• coordinate estimated from map
• 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 105887: authorized by Matthew Clapham, entered by Matthew Clapham on 26.02.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Craniata | |
Acanthocrania intermedia1 Cooper and Grant 1974 | |
Strophomenata | |
Leurosina lata1, Dyoros (Lissosia) concavus1, Dyoros (Dyoros) tenuis1, Dyoros (Dyoros) extensus1, Undulella undulata1
Leurosina lata1 Cooper and Grant 1975
Dyoros (Lissosia) concavus1 Cooper and Grant 1975
Dyoros (Dyoros) tenuis1 Cooper and Grant 1975
Dyoros (Dyoros) extensus1 Cooper and Grant 1975
Undulella undulata1 Cooper and Grant 1969 | |
Derbyia filosa1 Cooper and Grant 1974
Derbyia texta1 Cooper and Grant 1974
Derbyia pannucia1 Cooper and Grant 1974 | |
Meekella skenoides1 Girty 1908 | |
Grandaurispina bella1 Cooper and Grant 1975
Grandaurispina kingorum1 Muir-Wood and Cooper 1960 | |
Paucispinifera auriculata1, Paucispinifera transversa1, Paucispinifera magnispina1, Liosotella wordensis1
Paucispinifera auriculata1 Muir-Wood and Cooper 1960
Paucispinifera transversa1 Cooper and Grant 1975
Paucispinifera magnispina1 Cooper and Grant 1975
Liosotella wordensis1 King 1931 | |
Yakovlevia hessorum1 Cooper and Grant 1975 | |
Echinauris lateralis1 Muir-Wood and Cooper 1960
Costispinifera costata1 King 1931 | |
Cyclacantharia kingorum1 Cooper and Grant 1969 | |
Collemataria elongata1 Cooper and Grant 1974 | |
Cooperina inexpectata1 Termier et al. 1966 | |
Echinosteges tuberculatus1, Xenosteges quadratus1, Polymorpharia polymorpha1, Cactosteges anomalus1, Rhamnaria kingorum1
Echinosteges tuberculatus1 King 1931
Xenosteges quadratus1 Cooper and Grant 1975
Polymorpharia polymorpha1 Cooper and Grant 1975
Cactosteges anomalus1 Cooper and Grant 1975
Rhamnaria kingorum1 Muir-Wood and Cooper 1960 | |
Heteralosia hystricula1 Girty 1908 | |
Rhynchonellata | |
Allorhynchus triangulatum1 Cooper and Grant 1976 | |
Petasmatherus opulus1 Cooper and Grant 1969 | |
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Rhynchopora palumbula1 Cooper and Grant 1976 | |
Dielasma sp.1 King 1856
Dielasma gracile1 Cooper and Grant 1976
Dielasma zebratum1 Cooper and Grant 1976
Dielasma compactum1 Cooper and Grant 1976 | |
Pseudodielasma sp.1, Pseudodielasma minor1, Pseudodielasma lobatum1, Pseudodielasma pingue1, Pseudodielasma gibberum1
Pseudodielasma sp.1 Brill 1940
Pseudodielasma minor1 King 1931
Pseudodielasma lobatum1 Cooper and Grant 1976
Pseudodielasma pingue1 Cooper and Grant 1976
Pseudodielasma gibberum1 Cooper and Grant 1976 | |
Glossothyropsis rectangulata1 Cooper and Grant 1976 | |
Heterelasma concavum1 Cooper and Grant 1976
Texarina elongata1 Cooper and Grant 1976 | |
Spiriferellina hilli1 Girty 1908
Metriolepis sp.1 Cooper and Grant 1976
Metriolepis pulvinata1 Cooper and Grant 1976 | |
Paraspiriferina setulosa1 Cooper and Grant 1976 | |
Reticulariina sp.1 Fredericks 1916 | |
Thedusia procera1 Cooper and Grant 1976
Hustedia sculptilis1 Cooper and Grant 1976 | |
Composita enormis1 Cooper and Grant 1976
Composita parasulcata1 Cooper and Grant 1976 | |
"Crurithyris tholiaphor" = Orbicoelia tholiaphor1
"Crurithyris tholiaphor" = Orbicoelia tholiaphor1 Cooper and Grant 1976 | |
Neospirifer amphigyus1 Cooper and Grant 1976
Cartorhium sp.1 Cooper and Grant 1976
Cartorhium chelomatum1 Cooper and Grant 1976 | |
Spiriferella calcarata1 Cooper and Grant 1976 | |
Enteletes sp.1 Waldheim 1825 | |
Bivalvia | |
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Cephalopoda | |
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