PBDB Collection

AMNH631, Figure Two Ranch, Sierra Diablo (Permian of the United States)

Where: Texas (31.5° N, 104.9° W: paleocoordinates 2.8° N, 34.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bone Spring Formation, Kungurian (279.3 - 272.3 Ma)

• The beds are believed to represent the very base of the Bone Spring formation on the shelf in this area.

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, pebbly, shelly/skeletal packstone

• The bottom at the time of deposition was probably a coquina of broken shells in a lime matrix. The deposit was formed in very shallow water for it was the initial deposit above an unconformity. The water was probably less than 25 feet deep.

• The fossils are found in a relatively pure limestone, almost free of silt but containing abundant pebbles and great quantities of shell detritus which is badly

•worn and broken.

Size class: macrofossils

Preservation: replaced with silica

Reposited in the AMNH

Primary reference: F.G. Stehli. 1954. Lower Leonardian Brachiopoda of the Sierra Diablo. Bulletin of the American Museum of Natural History 105(3):257-358 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81860: authorized by Matthew Clapham, entered by Matthew Clapham on 17.07.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Gastropoda
Cyrtoneritida - Orthonychiidae	Orthonychia cf. bowsheri⁵ Orthonychia cf. bowsheri⁵ Yochelson 1956 snail Variant 3
Murchisoniina - Gosseletinidae	Peruvispira delicata¹, "Glabrocingulum (Glabrocingulum) coronatum" = Glabrocingulum coronatum¹ Peruvispira delicata¹ Chronic 1949 snail "Glabrocingulum (Glabrocingulum) coronatum" = Glabrocingulum coronatum¹ Chronic 1952 snail
Rhynchonellata
Athyridida - Neoretziidae	Hustedia hessensis³, Hustedia glomerosa³ Hustedia hessensis³ King 1931 Hustedia glomerosa³ Cooper and Grant 1976
Athyridida - Athyrididae	Composita cracens³ Composita cracens³ Cooper and Grant 1976
Spiriferinida - Reticulariinidae	Altiplecus cooperi³, Reticulariina tetrica³, Reticulariina newelli³ Altiplecus cooperi³ Stehli 1954 Reticulariina tetrica³ Cooper and Grant 1976 Reticulariina newelli³ Stehli 1954
Spiriferinida - Spiriferellinidae	Crenispirifer angulatus³ Crenispirifer angulatus³ King 1931
Spiriferida - Ambocoeliidae	Crurithyris sulcata³ Crurithyris sulcata³ Stehli 1954
Orthida - Rhipidomellidae	Rhipidomella hessensis Rhipidomella hessensis King 1931
Orthida - Schizophoriidae	Orthotichia irregularis³, "Acosarina dorsisulcata" = Acosarina minuta³ Orthotichia irregularis³ Cooper and Grant 1976 "Acosarina dorsisulcata" = Acosarina minuta³ Abich 1878
Orthida - Enteletidae	Enteletes stehlii² Enteletes stehlii² Cooper and Grant 1976
Rhynchonellida - Pontisiidae	Pontisia nanas³ Pontisia nanas³ Stehli 1954
Terebratulida - Cranaenidae	Anomalesia perplexa³ Anomalesia perplexa³ Cooper and Grant 1976
Terebratulida - Dielasmatidae	Dielasma sp.³ Dielasma sp.³ King 1856
Strophomenata
Productida - Cyclacanthariidae	"Teguliferina conida" = Planispina conida³, Acritosia teguliferoides³, Cyclacantharia sp.³ "Teguliferina conida" = Planispina conida³ Stehli 1954 Acritosia teguliferoides³ King 1931 Cyclacantharia sp.³ Cooper and Grant 1969
Productida - Lyttoniidae	Eolyttonia diabloensis³, Collemataria americana³, Poikilosakos informis³ Eolyttonia diabloensis³ Stehli 1954 Collemataria americana³ Girty 1908 Poikilosakos informis³ Cooper and Grant 1974
Productida - Strophalosiidae	Heteralosia sp.³ Heteralosia sp.³ King 1938
Productida - Aulostegidae	Rhamnaria eximia³ Rhamnaria eximia³ Cooper and Grant 1975
Productida - Scacchinellidae	Scacchinella americana Scacchinella americana Stehli 1954
Productida - Paucispiniferidae	"Psilonotus minimus" = Elliottella minima "Psilonotus minimus" = Elliottella minima Stehli 1954
Productida - Schrenkiellidae	"Linoproductus angustus" = Coopericus angustus³ "Linoproductus angustus" = Coopericus angustus³ King 1931
Productida - Productidae	"Antiquatonia planumbona" = Rigrantia planumbona³, "Spinifrons quadratus" = Spinifrons quadrata³ "Antiquatonia planumbona" = Rigrantia planumbona³ Stehli 1954 "Spinifrons quadratus" = Spinifrons quadrata³ Stehli 1954
Productida - Productellidae	Kozlowskia kingi³ Kozlowskia kingi³ Stehli 1954
Orthotetida - Derbyiidae	Derbyia sp.³, Derbyia nasuta³, Derbyia crenulata³, Diplanus lamellatus³ Derbyia sp.³ Waagen 1884 Derbyia nasuta³ Girty 1908 Derbyia crenulata³ Girty 1908 Diplanus lamellatus³ King 1931
Orthotetida - Schuchertellidae	Goniarina permiana³ Goniarina permiana³ Stehli 1954
Orthotetida - Meekellidae	Meekella attenuata³, Meekella intermedia³ Meekella attenuata³ Girty 1908 Meekella intermedia³ Cooper and Grant 1974
Strophomenida - Rugosochonetidae	Chonetinella biplicata³, Leurosina sinesulca³, Leurosina vulgarica³, Dyoros (Dyoros) consanguineus³, Dyoros (Dyoros) magnus³, Quadrochonetes girtyi, Quadrochonetes praecursor³ Chonetinella biplicata³ King 1931 Leurosina sinesulca³ Stehli 1954 Leurosina vulgarica³ Cooper and Grant 1975 Dyoros (Dyoros) consanguineus³ Girty 1929 Dyoros (Dyoros) magnus³ Stehli 1954 Quadrochonetes girtyi Stehli 1954 Quadrochonetes praecursor³ Cooper and Grant 1975
Anthozoa
Stauriida - Lophotichiidae	Paraduplophyllum (Vacoea) tubaeformis⁴ Paraduplophyllum (Vacoea) tubaeformis⁴ Fedorowski 1987 horn coral ssp. tubaeformis

¹Batten 1989; ²Cooper and Grant 1976; ³Cooper and Grant 1977; ⁴Fedorowski 1987; ⁵Yochelson 1956