Where: Brewster County, 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)
• Equivalent to lower part of Third Limestone Member of P.B. King.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; 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 43548: authorized by David Bottjer, entered by Matthew Clapham on 14.08.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Demospongiae | |
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Bivalvia | |
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Polyplacophora | |
"Pterochiton arthurcooperi" = Schematochiton arthurcooperi8
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Gastropoda | |
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"Glabrocingulum (Glabrocingulum) coronatum" = Glabrocingulum coronatum1
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"Platyceras (Orthonychia) bowsheri" = Orthonychia bowsheri10
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Tergomya | |
"Lepetopsis parrishi" = Novlepatella parrishi11
"Lepetopsis parrishi" = Novlepatella parrishi11 Gurley 1884 | |
Cephalopoda | |
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Craniata | |
Lepidocrania sublamellosa3 Cooper and Grant 1974
Petrocrania teretis3 Cooper and Grant 1974
Acanthocrania intermedia3 Cooper and Grant 1974 | |
Rhynchonellata | |
Glossothyropsis rectangulata n. sp.3 Cooper and Grant 1976
Notothyris venusta3 Cooper and Grant 1976 | |
Heterelasma sp.3, Heterelasma pentagonum n. sp.3, Heterelasma solidum n. sp.3, Heterelasma concavum n. sp.3, Texarina elongata3, Texarina oblongata3
Heterelasma sp.3 Girty 1908
Heterelasma pentagonum n. sp.3 Cooper and Grant 1976
Heterelasma solidum n. sp.3 Cooper and Grant 1976
Heterelasma concavum n. sp.3 Cooper and Grant 1976
Texarina elongata3 Cooper and Grant 1976
Texarina oblongata3 Cooper and Grant 1969 | |
Pseudodielasma sp.3, Pseudodielasma pingue3, Pseudodielasma ovatum3, Pseudodielasma gibberum3, Pseudodielasma plicatum3, Pseudodielasma minor3, Pseudodielasma sulcatum3
Pseudodielasma pingue3 Cooper and Grant 1976
Pseudodielasma ovatum3 Cooper and Grant 1976
Pseudodielasma gibberum3 Cooper and Grant 1976
Pseudodielasma plicatum3 Cooper and Grant 1976
Pseudodielasma minor3 King 1931
Pseudodielasma sulcatum3 Cooper and Grant 1976 | |
Dielasma adamanteum n. sp.3, Dielasma zebratum n. sp.3, Dielasma planidorsatum n. sp.3, Dielasma compactum n. sp.3, Ectoposia wildei n. gen. n. sp.3
Dielasma adamanteum n. sp.3 Cooper and Grant 1976
Dielasma zebratum n. sp.3 Cooper and Grant 1976
Dielasma planidorsatum n. sp.3 Cooper and Grant 1976
Dielasma compactum n. sp.3 Cooper and Grant 1976
Ectoposia wildei n. gen. n. sp.3 Cooper and Grant 1976 | |
Enteletes wordensis3 King 1931 | |
"Crurithyris tholiaphor n. sp." = Orbicoelia tholiaphor3
"Crurithyris tholiaphor n. sp." = Orbicoelia tholiaphor3 Cooper and Grant 1976 | |
"Spiriferinaella scalpata" = Johncarteria scalpata3
"Spiriferinaella scalpata" = Johncarteria scalpata3 Cooper and Grant 1976 | |
Neospirifer amphigyus3 Cooper and Grant 1976
Cartorhium vidriense n. gen. n. sp.3 Cooper and Grant 1976
Cartorhium chelomatum n. gen. n. sp.3 Cooper and Grant 1976 | |
Spiriferella calcarata3 Cooper and Grant 1976 | |
Neophricadothyris conara3 Cooper and Grant 1976 | |
Paraspiriferina laqueata3 Cooper and Grant 1976 | |
Reticulariina sp.3 Fredericks 1916
Reticulariina senticosa3 Cooper and Grant 1976
Reticulariina cerina3 Cooper and Grant 1976 | |
Arionthia blothrhachis n. gen. n. sp.3
Arionthia blothrhachis n. gen. n. sp.3 Cooper and Grant 1976 | |
Rhynchopora palumbula3 Cooper and Grant 1976 | |
Leiorhynchoidea amygdaloidea n. sp.3
Leiorhynchoidea amygdaloidea n. sp.3 Cooper and Grant 1976 | |
Stenoscisma renode3 Cooper and Grant 1976 | |
Petasmatherus opulus3 Cooper and Grant 1969 | |
Cenorhynchia triangulata n. gen. n. sp.3, Phrenophoria subcarinata3, Wellerella girtyi3, Tautosia transenna3
Cenorhynchia triangulata n. gen. n. sp.3 Cooper and Grant 1976
Phrenophoria subcarinata3 Cooper and Grant 1969
Tautosia transenna3 Cooper and Grant 1976 | |
Allorhynchus sp.3, Allorhynchus permianum n. sp.3, Allorhynchus triangulatum n. sp.3, Allorhynchus variabile n. sp.3
Allorhynchus triangulatum n. sp.3 Cooper and Grant 1976
Allorhynchus variabile n. sp.3 Cooper and Grant 1976 | |
Thedusia procera3 Cooper and Grant 1976
Hustedia sp.3 Hall and Clarke 1893
Hustedia sculptilis n. sp.3 Cooper and Grant 1976 | |
Composita parasulcata n. sp.3 Cooper and Grant 1976
Composita enormis n. sp.3 Cooper and Grant 1976 | |
Strophomenata | |
Heteralosia hystricula3 Girty 1908 | |
Xenosteges quadratus3, Echinosteges tuberculatus3, Polymorpharia polymorpha3, Rhamnaria kingorum3, Cactosteges anomalus n. gen. n. sp.3
Xenosteges quadratus3 Cooper and Grant 1975
Echinosteges tuberculatus3 King 1931
Polymorpharia polymorpha3 Cooper and Grant 1975
Rhamnaria kingorum3 Muir-Wood and Cooper 1960
Cactosteges anomalus n. gen. n. sp.3 Cooper and Grant 1975 | |
Cooperina inexpectata3 Termier et al. 1966 | |
Collemataria elongata n. gen. n. sp.3 Cooper and Grant 1974
Pseudoleptodus annosus3 Cooper and Grant 1974 | |
Cyclacantharia kingorum n. sp.3
Cyclacantharia kingorum n. sp.3 Cooper and Grant 1969 | |
Paucispinifera sp.3, Paucispinifera quadrata3, Paucispinifera intermedia3, Paucispinifera transversa3, Paucispinifera auriculata3, Liosotella wordensis3, Liosotella parva n. sp.3
Paucispinifera quadrata3 Cooper and Grant 1975
Paucispinifera intermedia3 Cooper and Grant 1975
Paucispinifera transversa3 Cooper and Grant 1975
Paucispinifera auriculata3 Muir-Wood and Cooper 1960
Liosotella wordensis3 King 1931
Liosotella parva n. sp.3 Cooper and Grant 1975 | |
Megousia mucronata3, Megousia definita3, Megousia flexuosa3, Cancrinella subquadrata n. sp.3, Grandaurispina bella n. sp.3, Grandaurispina kingorum n. sp.3
Megousia mucronata3 Cooper and Grant 1975
Megousia definita3 Cooper and Grant 1975
Megousia flexuosa3 Cooper and Grant 1975
Cancrinella subquadrata n. sp.3 Cooper and Grant 1975
Grandaurispina bella n. sp.3 Cooper and Grant 1975
Grandaurispina kingorum n. sp.3 Muir-Wood and Cooper 1960 | |
Costispinifera costata3 King 1931
Echinauris lateralis3 Muir-Wood and Cooper 1960
Bothrionia nasuta n. gen. n. sp.3 Cooper and Grant 1975 | |
Yakovlevia hessorum3 Cooper and Grant 1975 | |
Waagenoconcha magnifica3 Cooper and Grant 1975 | |
Dyoros (Tetragonetes) wordensis n. sp.3, Dyoros (Dyoros) extensus n. sp.3, Dyoros (Dyoros) tenuis n. sp.3, Dyoros (Lissosia) concavus n. sp.3, Leurosina lata n. gen. n. sp.3, Neochonetes sp.3, Undulella undulata3
Dyoros (Tetragonetes) wordensis n. sp.3 Cooper and Grant 1975
Dyoros (Dyoros) extensus n. sp.3 Cooper and Grant 1975
Dyoros (Dyoros) tenuis n. sp.3 Cooper and Grant 1975
Dyoros (Lissosia) concavus n. sp.3 Cooper and Grant 1975
Leurosina lata n. gen. n. sp.3 Cooper and Grant 1975
Neochonetes sp.3 Muir-Wood 1962
Undulella undulata3 Cooper and Grant 1969 | |
Derbyia pannucia n. sp.3 Cooper and Grant 1974
Derbyia filosa n. sp.3 Cooper and Grant 1974 | |
Meekella skenoides3 Girty 1908 | |
Tropidelasma anthicum3 Cooper and Grant 1974 | |
Trilobita | |
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Ostracoda | |
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