PBDB Collection

Silica Shale, Unit A North (Devonian of the United States)

Where: Indiana (41.1° N, 84.9° W: paleocoordinates 36.6° S, 32.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Silica Formation (Traverse Group), Givetian (387.7 - 382.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified mudstone and lithified packstone

Size class: macrofossils

Preservation: original calcite

Collection methods: bulk,

Primary reference: L. A. Wiedman. 1985. Community paleoecological study of the Silica Shale equivalent of northeastern Indiana. Journal of Paleontology 59(1):160-182 [S. Peters/S. Peters/S. Peters]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 55606: authorized by Shanan Peters, entered by Shanan Peters on 01.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Retoporina striata, Cayugea sp., Vermiformichnus sp. Retoporina striata Cayugea sp. Vermiformichnus sp.
Anthozoa
Favositida - Pachyporidae	"Trachypora alpenensis" = Thamnoptychia "Trachypora alpenensis" = Thamnoptychia tabulate coral
Auloporida - Syringoporidae	Syringopora perelegans Syringopora perelegans Billings 1859 tabulate coral
Auloporida - Aulocystidae	Aulocystis lucasensis, Aulocystis jacksoni Aulocystis lucasensis tabulate coral Aulocystis jacksoni tabulate coral
Auloporida - Auloporidae	Aulopora microbuccinata Aulopora microbuccinata tabulate coral
Rugosa -	Rugosa indet. Rugosa indet. horn coral
Cystiphyllida - Cystiphyllidae	Cystiphylloides americanum Cystiphylloides americanum horn coral
Stauriida - Amplexidae	Heterophrentis simplex Heterophrentis simplex horn coral
Stauriida - Zaphrentidae	Heliophyllum sp. Heliophyllum sp. Hall 1846 horn coral
Stauriida - Bethanyphyllidae	Bethanyphyllum robustum Bethanyphyllum robustum horn coral
unclassified
-	Porifera sp. Porifera sp. Grant 1836
Crinoidea
Calceocrinida - Calceocrinidae	Cunctocrinus sp. Cunctocrinus sp. Kesling and Sigler 1969 Sea lily
Diplobathrida - Rhodocrinitidae	Gilbertsocrinus sp. Gilbertsocrinus sp. Phillips 1836 Sea lily
Lophophorata
Tentaculitida - Tentaculitidae	Tentaculites sp. Tentaculites sp. von Schlotheim 1820
Stenolaemata
Cystoporata - Fistuliporidae	Fistulipora sp. Fistulipora sp. McCoy 1850
Cryptostomata -	Intrapora irregularis Intrapora irregularis
Cyclostomata - Hederellidae	Hederella delicatula Hederella delicatula
Trepostomata -	Trepostomata indet. Trepostomata indet. Ulrich 1882
Trepostomida - Atactotoechidae	Leptotrypella ohioensis Leptotrypella ohioensis
Rhynchonellata
Spiriferida - Mucrospiriferidae	Mucrospirifer sp. Mucrospirifer sp. Grabau 1931
Spiriferida - Spinocyrtiidae	Spinocyrtia euryteines Spinocyrtia euryteines
Athyridida - Athyrididae	Athyris fultonensis Athyris fultonensis
Atrypida - Atrypidae	Pseudoatrypa devoniana Pseudoatrypa devoniana Webster 1921
Terebratulida - Rhipidiothyrididae	Rhipidothyris sp. Rhipidothyris sp.
Spiriferinida - Cyrtinidae	Cyrtina hamiltonensis Cyrtina hamiltonensis Hall 1857
Rhynchonellida - Trigonirhynchiidae	Cupularostrum sp. Cupularostrum sp. Sartenaer 1961
Strophomenata
Strophomenida - Chonetidae	Devonochonetes sp., Devonochonetes fragilus, Devonochonetes scitulus, Devonochonetes coronatus Devonochonetes sp. Muir-Wood 1962 Devonochonetes fragilus Devonochonetes scitulus Hall 1857 Devonochonetes coronatus Hall 1857
Strophomenida - Strophodontidae	"Strophodonta sp." = Strophomena (Strophodonta), "Strophodonta erratica" = Strophomena (Strophodonta), "Strophodonta fissicosta" = Strophomena (Strophodonta), "Strophodonta extenuata" = Strophomena (Strophodonta), "Strophodonta demissa" = Strophodonta (Strophodonta) demissa "Strophodonta sp." = Strophomena (Strophodonta) Hall 1852 "Strophodonta erratica" = Strophomena (Strophodonta) "Strophodonta fissicosta" = Strophomena (Strophodonta) "Strophodonta extenuata" = Strophomena (Strophodonta) "Strophodonta demissa" = Strophodonta (Strophodonta) demissa Conrad 1842
Craniata
Craniopsida - Craniopsidae	Craniops hamiltoniae Craniops hamiltoniae Hall 1867
Polychaeta
Sabellida - Serpulidae	Spirorbis sp. Spirorbis sp. Daudin 1800
Tentaculita
Styliolinida - Styliolinidae	Styliolina sp. Styliolina sp. Karpinsky 1884
Bivalvia
-	Bivalvia indet. Bivalvia indet. Linnaeus 1758 clam
Gastropoda
Euomphalina - Platyceratidae	Platyceras sp. Platyceras sp. Conrad 1840 snail
Trilobita
Phacopida - Phacopidae	"Phacops rana" = Eldredgeops rana "Phacops rana" = Eldredgeops rana Green 1832 trilobite