Silica Formation Unit 12: Givetian, Ohio

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea - Poteriocrinina - Proctothylacocrinidae
Proctothylacocrinus esseri
Proctothylacocrinus longus
Crinoidea - Monobathrida - Hexacrinitidae
Arthroacantha carpenteri
Blastoidea - Spiraculata - Nucleocrinidae
Nucleocrinus cf. elegans Conrad 1842
Tentaculita - Styliolinida - Styliolinidae
Styliolina fissurella (Hall 1879)
Strophomenata - Orthotetida - Areostrophiidae
Orthopleura informal sp. B Imbrie
replaced by Imbriea
Strophomenata - Orthotetida - Schuchertellidae
Schuchertella sp. Girty 1904
Strophomenata - Strophomenida - Chonetidae
Devonochonetes fragilis
? Devonochonetes scitulus (Hall 1857)
Devonochonetes coronatus (Hall 1857)
Strophomenata - Strophomenida - Strophodontidae
Pholidostrophia nacrea
Strophomenata - Strophomenida - Leptostrophiidae
Protoleptostrophia perplana (Conrad 1839)
Rhynchonellata - Spiriferida - Mucrospiriferidae
Mucrospirifer prolificus
Rhynchonellata - Athyridida - Athyrididae
Athyris vittata
Rhynchonellata - Spiriferinida - Cyrtinidae
Cyrtina alpenensis
Rhynchonellata - Orthida - Rhipidomellidae
Rhipidomella vanuxemi (Hall 1857)
Tentaculitida - Tentaculitidae
Tentaculites bellulus Hall 1876
Stenolaemata - Cystoporata - Fistuliporidae
Fistulipora vesiculata
Stenolaemata - Trepostomida - Stenoporidae
Stereotoechus cf. typicus Duncan 1939
Stenolaemata - Cystoporida - Sulcoreteporidae
Sulcoretepora deissi
Sulcoretepora informal sp. A
Stenolaemata - Cyclostomata - Hederellidae
Hederella alpenensis
Stenolaemata - Rhabdomesida - Rhabdomesidae
Acanthoclema ohioensis
Stenolaemata - Cryptostomata - Arthrostylidae
Helopora inexpectata
Stenolaemata - Cryptostomata - Hyphasmoporidae
Streblotrypa anomala
Streblotrypa hamiltonensis
Streblotrypa sp.
Stenolaemata - Cryptostomata
Intrapora irregularis
Intrapora sp. Hall 1883
Stenolaemata - Cryptostomata - Ptilodictyidae
Stictoporina granulifera
Stenolaemata - Cryptostomata - Semicosciniidae
Semicoscinium sp. Prout 1859
Stenolaemata - Cryptostomata - Acanthocladiidae
Penniretepora cf. irregularis
Stenolaemata - Cryptostomata - Fenestellidae
Fenestrellina rockportensis
Reteporina striata
Stenolaemata - Trepostomata - Heterotrypidae
Leioclema alpenense
Bivalvia - Pectinida - Pterinopectinidae
Lyriopecten mitchelli
Bivalvia - Ostreida - Pterineidae
Cornellites flabellum
Ptychopteria (Actinopteria) boydi (Conrad 1842)
Trilobita - Proetida - Proetidae
Dechenella (Basidechenella) lucasensis Stumm 1965
recombined as Basidechenella lucasensis
Dechenella (Dechenella) alpenensis Stumm 1953
recombined as Dechenella alpenensis
Trilobita - Phacopida - Phacopidae
Phacops rana (Green 1832)
recombined as Eldredgeops rana
Anthozoa - Auloporida - Aulocystidae
Aulocystis flabellata
Anthozoa - Auloporida - Auloporidae
Planalveolitella parasitica
see common names

Geography
Country:United States State/province:Ohio
Coordinates: 41.7° North, 83.7° West (view map)
Paleocoordinates:36.4° South, 31.0° West
Basis of coordinate:based on nearby landmark
Geographic resolution:local area
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
Formation:Silica
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:gray argillaceous "limestone"
Lithology description: Overall sequence: Bioclastic limestone; argillaceous limestone; shale. This unit: "limestone, argillaceous, light-gray, usually consisting of several lenses (North Quarry); in many parts of South Quarry absent or represented by shale"
Environment:marine indet.
Taphonomy
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:38463
Authorizer:M. Foote Enterer:M. Foote
Modifier:M. Foote Research group:marine invertebrate
Created:2004-04-21 20:37:45 Last modified:2006-09-13 14:01:03
Access level:the public Released:2004-04-21 20:37:45
Creative Commons license:CC BY
Reference information

Primary reference:
10310. R. V. Kesling and R. B. Chilman. 1975. Strata and megafossils of the Middle Devonian Silica Formation. University of Michigan Papers on Paleontology 8:1-408 [M. Foote/M. Foote/M. Foote]