PBDB Collection

USNM720g, Hess Ranch Horst, Glass Mountains (Permian of the United States)

Where: Brewster County, Texas (30.4° N, 103.2° W: paleocoordinates 0.8° S, 34.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Skinner Ranch Formation, Artinskian (290.1 - 279.3 Ma)

• Lower Skinner Ranch Fm.

• group of beds-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

• Skinner Ranch Fm. is slope to basinal equivalent of platformal Hess Formation.

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 75936: authorized by Wolfgang Kiessling, entered by Uta Merkel on 06.11.2007, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• A variety of papers list the brachiopods, nearly all gastropods, most bivalves (except primarily Paleotaxodonts), trilobites, chitons, siliceous sponges, rugose corals (only from Gaptank and Asselian/Sakmarian formations).

Show authors, comments, and common names

Craniata
Craniida - Craniidae	Acanthocrania alta n. sp.² Acanthocrania alta n. sp.² Cooper and Grant 1974
Strophomenata
Productida - Scacchinellidae	Scacchinella titan² Scacchinella titan² Cooper and Grant 1975
Productida - Aulostegidae	Rhamnaria grandis² Rhamnaria grandis² Cooper and Grant 1975
Productida - Paucispiniferidae	Elliottella varicostata² Elliottella varicostata² Cooper and Grant 1975
Productida - Productellidae	Kozlowskia alata² Kozlowskia alata² Cooper and Grant 1975
Productida - Schrenkiellidae	"Linoproductus angustus" = Coopericus angustus² "Linoproductus angustus" = Coopericus angustus² King 1931
Productida - Cyclacanthariidae	Acritosia peculiaris² Acritosia peculiaris² Cooper and Grant 1975
Productida - Lyttoniidae	Eolyttonia sp.² Eolyttonia sp.² Frederiks 1924
Orthotetida - Derbyiidae	Derbyia crenulata² Derbyia crenulata² Girty 1908
Orthotetida - Meekellidae	Meekella hessensis² Meekella hessensis² King 1931
Strophomenida - Rugosochonetidae	Chonetinella biplicata², Leurosina vulgarica² Chonetinella biplicata² King 1931 Leurosina vulgarica² Cooper and Grant 1975
Chileata
Dictyonellida - Isogrammidae	Isogramma sp.² Isogramma sp.²
Rhynchonellata
Spiriferida - Trigonotretidae	Cartorhium zoyei² Cartorhium zoyei² Cooper and Grant 1976
Athyridida - Athyrididae	Composita apheles² Composita apheles² Cooper and Grant 1976
Athyridida - Neoretziidae	Hustedia hessensis² Hustedia hessensis² King 1931
Spiriferinida - Spiriferellinidae	Crenispirifer angulatus² Crenispirifer angulatus² King 1931
Rhynchonellida - Stenoscismatidae	Stenoscisma problematicum² Stenoscisma problematicum² Cooper and Grant 1976
Rhynchonellida - Wellerellidae	Tricoria hirpex² Tricoria hirpex² Cooper and Grant 1976
Terebratulida - Dielasmatidae	Dielasma sp.² Dielasma sp.² King 1856
Orthida - Schizophoriidae	"Acosarina dorsisulcata" = Acosarina minuta² "Acosarina dorsisulcata" = Acosarina minuta² Abich 1878
Orthida - Enteletidae	Enteletes stehlii² Enteletes stehlii² Cooper and Grant 1976
Orthida - Rhipidomellidae	Rhipidomella hessensis² Rhipidomella hessensis² King 1931
Polyplacophora
Neoloricata - Lepidopleuridae	Stegochiton coxi n. sp.⁴ Stegochiton coxi n. sp.⁴ Hoare and Smith 1984 chiton
Trilobita
Proetida - Phillipsiidae	Ditomopyge sp.¹ Ditomopyge sp.¹ Newell 1931 trilobite
Anthozoa
Stauriida - Lophotichiidae	Paraduplophyllum (Vacoea) vermiculare³, Assimulia (Assimulia) tergida³ Paraduplophyllum (Vacoea) vermiculare³ Fedorowski 1987 horn coral Assimulia (Assimulia) tergida³ Ross and Ross 1962 horn coral

¹Brezinski 1992; ²Cooper and Grant 1977; ³Fedorowski 1987; ⁴Hoare and Smith 1984