Silica Shale Unit B - South: Givetian, Indiana

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Cayugea sp.
5 individuals
Vermiformichnus sp.
19 individuals
Trilobita - Phacopida - Phacopidae
Phacops rana (Green 1832)
1 individual
recombined as Eldredgeops rana
Tentaculita - Styliolinida - Styliolinidae
Styliolina sp. Karpinsky 1884
1 individual
Gastropoda - Euomphalina - Platyceratidae
Platyceras sp. Conrad 1840
6 individuals
Tentaculitida - Tentaculitidae
Tentaculites sp. von Schlotheim 1820
1 individual
Rhynchonellata - Spiriferinida - Cyrtinidae
Cyrtina hamiltonensis (Hall 1857)
8 individuals
Rhynchonellata - Spiriferida - Spinocyrtiidae
Spinocyrtia euryteines
11 individuals
Mediospirifer audaculus (Conrad 1842)
1 individual
Rhynchonellata - Spiriferida - Mucrospiriferidae
Mucrospirifer sp. Grabau 1931
29 individuals
Mucrospirifer prolificus
1 individual
Mucrospirifer profundus
4 individuals
Mucrospirifer mucronatus (Conrad 1841)
4 individuals
Rhynchonellata - Atrypida - Atrypidae
Pseudatrypa devoniana (Webster 1921)
6 individuals
misspelling Pseudoatrypa devoniana
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Cupularostrum sp. Sartenaer 1961
10 individuals
Rhynchonellata - Terebratulida - Rhipidiothyrididae
Rhipidothyris sp.
4 individuals
Strophomenata - Orthotetida - Areostrophiidae
Orthopleura sp.
1 individual
replaced by Imbriea
Strophomenata - Strophomenida - Leptostrophiidae
Protoleptostrophia perplana (Conrad 1839)
1 individual
Strophomenata - Strophomenida - Chonetidae
Devonochonetes sp. Muir-Wood 1962
6 individuals
Devonochonetes fragilis
2 individuals
Devonochonetes coronatus (Hall 1857)
5 individuals
Devonochonetes scitulus (Hall 1857)
8 individuals
Strophomenata - Strophomenida - Strophodontidae
Strophodonta sp. (Hall 1852)
83 individuals
corrected as Strophomena (Strophodonta)
Strophodonta erratica
4 individuals
corrected as Strophomena (Strophodonta)
Strophodonta extenuata
12 individuals
corrected as Strophomena (Strophodonta)
Strophodonta fissicosta
3 individuals
corrected as Strophomena (Strophodonta)
Strophodonta demissa (Conrad 1842)
14 individuals
recombined as Strophodonta (Strophodonta) demissa
Craniata - Craniopsida - Craniopsidae
Craniops hamiltonae
10 individuals
Stenolaemata - Cryptostomata
Intrapora irregularis
1 individual
Stenolaemata - Cryptostomata - Arthrostylidae
Helopora inexpectata
1 individual
Stenolaemata - Cystoporata - Fistuliporidae
Fistulipora sp. McCoy 1850
12 individuals
Stenolaemata - Cyclostomata - Hederellidae
Hederella delicatula
1 individual
Stenolaemata - Trepostomata
Trepostomata indet. Ulrich 1882
4 individuals
Polychaeta - Sabellida - Serpulidae
Spirorbis sp. Daudin 1800
28 individuals
Crinoidea - Diplobathrida - Rhodocrinitidae
Gilbertsocrinus sp. Phillips 1836
1 individual
Anthozoa - Favositida - Pachyporidae
Trachypora alpenensis
1 individual
synonym of Thamnoptychia
Anthozoa - Auloporida - Aulocystidae
Aulocystis lucasensis
1 individual
Anthozoa - Auloporida - Auloporidae
Aulopora microbuccinata
25 individuals
Anthozoa - Rugosa
Rugosa indet. Milne-Edwards and Haime 1850
77 individuals
Anthozoa - Cystiphyllida - Cystiphyllidae
Cystiphylloides americanum
1 individual
Anthozoa - Stauriida - Amplexidae
Heterophrentis simplex
9 individuals
Anthozoa - Stauriida - Zaphrentidae
Heliophyllum sp. Hall 1846
2 individuals
Anthozoa - Stauriida - Bethanyphyllidae
Bethanyphyllum robustum
3 individuals
unclassified
Porifera indet. Grant 1836
1 individual
see common names

Geography
Country:United States State/province:Indiana
Coordinates: 41.1° North, 84.9° West (view map)
Paleocoordinates:36.6° South, 32.2° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Devonian Epoch:Middle Devonian
Stage:Givetian 10 m.y. bin:Devonian 3
Key time interval:Givetian
Age range of interval:387.70000 - 382.70000 m.y. ago
Stratigraphy
Geological group:Traverse Formation:Silica
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified mudstone
Secondary lithology: lithified packstone
Includes fossils?Y
Includes fossils?Y
Environment:offshore shelf Tectonic setting:cratonic basin
Taphonomy
Modes of preservation:body,original calcite
Size of fossils:macrofossils
Articulated whole bodies:some
Associated major elements:some
Temporal resolution:time-averaged
Spatial resolution:autochthonous
Collection methods and comments
Collection excludes:difficult macrofossils
Collection methods:bulk,field collection
Reason for describing collection:paleoecologic analysis
Metadata
Database number:65999
Authorizer:S. Peters Enterer:S. Peters
Modifier:M. Carrano Research group:marine invertebrate
Created:2006-09-26 13:56:30 Last modified:2022-12-02 09:40:18
Access level:the public Released:2006-09-26 13:56:30
Creative Commons license:CC BY
Reference information

Primary reference:
15023. 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]