B.E.G. 248-T-6 (G-10), clay pit in north edge of Bridgeport (Carboniferous of the United States)

Where: Wise County, Texas (33.2° N, 97.8° W: paleocoordinates 6.8° S, 33.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Graford Formation (Canyon Group), Kasimovian (307.0 - 303.7 Ma)

• Demoinesian, but ammonoids suggest uppermost Desmoinesian or Kasimovian age. Lower zone of this formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size classes: macrofossils, mesofossils

Preservation: cast

Collection methods: Repository: Plummer Collection, Bureau of Economic Geology, The University of Texas.

Primary reference: F. B. Plummer and J. Hornberger. 1935. Geology of Palo Pinto County, Texas. Texas Bureau of Economic Geology Bulletin 3554:1-240 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 128580: authorized by Matthew Clapham, entered by Matthew Clapham on 12.06.2012, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Other taxa:

•Foraminifera -

•Ammobaculites inconspicua Cushman and Waters

•Ammodiscus incertus (d'Orbigny)

•Aptetrinella grahamcnsis (Harllon)

•Calcitornella heathi Cushman and Waters

•Cornnspira cf. C. involvens (Reuss)

•Earlandia perparva Plummer

•Endothyra walersi Plummer

•Endothyra pauciloculata Cushman and Waters

•Glyphostomella triloculina (Cushman and Waters)

•Hyperammina bulbosa Cushman and Waters

•Nodosinella perelegans Plummer

•Orobias ciscoensis (Harlton)

•Orthovertella protea Cushman and Waters

•Tetrataxis corona Cushman and Waters

•Brachiopoda—

•Orbiculoidea sp.

•Lindstroemella patula (Girty)

•Crania modesta White and St. John

•Derbya subcircularis Dunbar and Condra

•Derbya sp.

•Meekella striatocostata (Cox)

•Chonetes fragilis R. H. King, n. sp. (MS.)

•Chonetina cf. C. primitiva R. H. King, n. sp. (MS.)

•Chonetina verneuiliana (Norwood and Pratten)

•Juresania nebrascensis (Owen)

•Echinoconchus sp.

•Dictyoclostus crassicostatus Dunbar and Condra

•Marginifera lasallensis (Worthen)

•Marginifera splendens (Norwood and Pratten)

•Marginifera wabashensis (Norwood and Pratten)

•Linoproductus, n. spp. (2)

•Squamularia perplexa (McChesney)

•Neospirifer dunbari R. H. King

•Ambocoelia planoconvexa (Shumard)

•Punctospirifer kentuckyensis (Shumard)

•Hustedia mormoni (Marcou)

•Composita ovata Mather

•Composita subtilita (Hall) Pelecypoda —

•Pelecypoda

•Nucula anodontoides Meek

•Anthraconeilo taffiana Girty

•Leda bellistriata Stevens

•Leda arata (Hall)

•Yoldia glabra Beede and Rogers

•Pinna sp.

•Pteria longa (Geinitz)

•Limopteria sp.

•Myalina swallovi McChesney

•Aviculopecten carboniferus (Stevens)

•Allorisma granosum (Shomard)

•Astartella concentrica (McChesney)

•Trilobita—

•Griffithides ? scitulus (Meek and Worthen)

•Phillipsia sp.

Strophomenata
 Productida - Linoproductidae
Linoproductus prattenianus Norwood and Pratten 1855
Gastropoda
 Murchisoniina - Soleniscidae
"Macrochilina medialis" = Ianthinopsis medialis, "Auriptygma subtilistriatum" = Leptoptygma subtilistriatum, "Macrochilina regularis" = Soleniscus regularis
"Macrochilina medialis" = Ianthinopsis medialis Meek and Worthen 1860 snail
"Auriptygma subtilistriatum" = Leptoptygma subtilistriatum Knight 1931 snail
"Macrochilina regularis" = Soleniscus regularis Cox 1857 snail
 Murchisoniina - Phymatopleuridae
"Orestes brazoensis" = Phymatopleura brazoensis Shumard 1860 snail
Worthenia tabulata Conrad 1835 snail
 Murchisoniina - Gosseletinidae
Trepospira illinoisensis Worthen 1884 snail
Trepospira sphaerulata Conrad 1842 snail
"Phanerotrema grayvillense" = Glabrocingulum grayvillense Norwood and Pratten 1855 snail
 Murchisoniina - Eotomariidae
Euconospira sp. Ulrich and Scofield 1897 snail
 Murchisoniina - Portlockiellidae
"Pleurotomaria carbonaria" = Shansiella carbonaria
"Pleurotomaria carbonaria" = Shansiella carbonaria Norwood and Pratten 1855 snail
 Euomphalina - Omphalotrochidae
Cinclidonema texanum n. gen. n. sp.1
Cinclidonema texanum n. gen. n. sp.1 Knight 1945 snail
 Euomphalina - Euomphalidae
Euomphalus sp., "Euomphalus catilloides" = Amphiscapha catilloides, "Euomphalus subquadratus" = Amphiscapha subquadrata
Euomphalus sp. Sowerby 1814 snail
"Euomphalus catilloides" = Amphiscapha catilloides Conrad 1842 snail
"Euomphalus subquadratus" = Amphiscapha subquadrata Meek and Worthen 1870 snail
 Bellerophontida - Bellerophontidae
"Patellostium montfortianum" = Cymatospira montfortianus, "Pharkidonotus percarinatus" = Pharkidonotus percarinatus, "Pharkidonotus tricarinatus" = Pharkidonotus percarinatus, "Bellerophon crassus" = Waagenella crassus
"Patellostium montfortianum" = Cymatospira montfortianus Norwood and Pratten 1855 snail
"Pharkidonotus percarinatus" = Pharkidonotus percarinatus Conrad 1842 snail
"Pharkidonotus tricarinatus" = Pharkidonotus percarinatus Conrad 1842 snail
"Bellerophon crassus" = Waagenella crassus Meek and Worthen 1860 snail
 Bellerophontida - Euphemitidae
Euphemites vittatus McChesney 1859 snail
Euphemites blaneyanus McChesney 1859 snail
 Zygopleuroidea - Pseudozygopleuridae
Pseudozygopleura sp. Knight 1930 snail
 Caenogastropoda - Meekospiridae
Meekospira ? choctawensis Girty 1912 snail
Cephalopoda
 Prolecanitida - Medlicottiidae
"Prouddenites grafordensis n. sp." = Prouddenites primus2
"Prouddenites grafordensis n. sp." = Prouddenites primus2 Miller 1930 ammonite
 Goniatitida - Marathonitidae
"Marathonites parkeri" = Subkargalites parkeri2
"Marathonites parkeri" = Subkargalites parkeri2 Heilprin 1884 ammonite
 Goniatitida - Parashumarditidae
"Shumardites fornicatus n. sp." = Parashumardites fornicatus2
"Shumardites fornicatus n. sp." = Parashumardites fornicatus2 Plummer and Scott 1937 ammonite
 Goniatitida - Schistoceratidae
"Schistoceras smithi" = Schistoceras missouriense2 Miller and Faber 1892 ammonite
Paraschistoceras reticulatum2 Miller 1930 ammonite
 Goniatitida - Glaphyritidae
Glaphyrites anguloumbilicatus2 Plummer and Scott 1937 ammonite
Glaphyrites angulatus2 Girty 1911 ammonite
 Goniatitida - Gonioloboceratidae
Gonioloboceras bridgeportense n. sp.2 Plummer and Scott 1937 ammonite
Rostroconchia
 Conocardiida - Bransoniidae
"Conocardium obliquum" = Apotocardium obliquum
"Conocardium obliquum" = Apotocardium obliquum Meek and Worthen 1875