Silica Formation Unit 13: Givetian, Ohio
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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? Semipora ehlersi
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Crinoidea
- Calceocrinida
- Calceocrinidae
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Cunctocrinus fortunatus
Kesling and Sigler 1969
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Crinoidea
- Poteriocrinina
- Decadocrinidae
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Decadocrinus stewartae
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Crinoidea
- Poteriocrinina
- Proctothylacocrinidae
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Proctothylacocrinus longus
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Crinoidea
- Sagenocrinida
- Euryocrinidae
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? Euryocrinus laddii
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Crinoidea
- Diplobathrida
- Rhodocrinitidae
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Gilbertsocrinus ohioensis
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Crinoidea
- Diplobathrida
- Opsiocrinidae
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Opsiocrinus mariae
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Crinoidea
- Monobathrida
- Periechocrinidae
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Corocrinus noduosus
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Crinoidea
- Monobathrida
- Hexacrinitidae
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Arthroacantha carpenteri
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Blastoidea
- Pentremitida
- Hyperoblastidae
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Hyperoblastus reimanni
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Blastoidea
- Spiraculata
- Nucleocrinidae
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Nucleocrinus cf. elegans
Conrad 1842
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Tentaculita
- Styliolinida
- Styliolinidae
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Styliolina fissurella
(Hall 1879)
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Strophomenata
- Productida
- Productellidae
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Spinulicosta spinulicosta
(Hall 1857)
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Strophomenata
- Strophomenida
- Chonetidae
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Devonochonetes coronatus
(Hall 1857)
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Strophomenata
- Strophomenida
- Strophodontidae
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Pholidostrophia nacrea
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Protoleptostrophia perplana
(Conrad 1839)
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Rhynchonellata
- Spiriferida
- Mucrospiriferidae
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Mucrospirifer prolificus
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Rhynchonellata
- Athyridida
- Athyrididae
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Athyris vittata
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Rhynchonellata
- Atrypida
- Atrypidae
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Atrypa "reticularis"
(Linnaeus 1758)
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| original and current combination Anomia reticularis | |||||||
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Rhynchonellata
- Spiriferinida
- Cyrtinidae
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Cyrtina hamiltonensis
(Hall 1857)
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Rhipidomella vanuxemi
(Hall 1857)
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Tentaculitida
- Tentaculitidae
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Tentaculites bellulus
Hall 1876
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Stenolaemata
- Cystoporata
- Fistuliporidae
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Fistulipora vesiculata
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Stenolaemata
- Cystoporida
- Sulcoreteporidae
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Sulcoretepora deissi
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Stenolaemata
- Cyclostomata
- Hederellidae
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Hederella alpenensis
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Hederella vagans
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Stenolaemata
- Rhabdomesida
- Rhabdomesidae
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Acanthoclema ohioensis
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Acanthoclema sulcatum
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Stenolaemata
- Cryptostomata
- Arthrostylidae
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Helopora inexpectata
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Stenolaemata
- Cryptostomata
- Hyphasmoporidae
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Streblotrypa anomala
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Stenolaemata
- Cryptostomata
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Intrapora irregularis
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Stenolaemata
- Cryptostomata
- Ptilodictyidae
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Stictoporina granulifera
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Stenolaemata
- Cryptostomata
- Fenestellidae
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Fenestrellina rockportensis
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Reteporina striata
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Bivalvia
- Ostreida
- Pterineidae
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Cornellites flabellum
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Trilobita
- Phacopida
- Phacopidae
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Phacops rana
(Green 1832)
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| recombined as Eldredgeops rana | |||||||
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Anthozoa
- Auloporida
- Aulocystidae
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Aulocystis flabellata
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Anthozoa
- Auloporida
- Auloporidae
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Planalveolitella parasitica
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| 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 calcareous "shale" |
| Lithology description: Overall sequence: Bioclastic limestone; argillaceous limestone; shale. This unit: "shale, calcareous, dark-gray. where unit 12 is developed as a limestone lens...shale contains many crinoids and blastoids [and bryozoans]...At other places, where unit 12 is represented by shale, top of unit contains comminuted echinoderm columnals and concentrations of bryozoa" | |
| Environment: | marine indet. |
Taphonomy
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 38464 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2004-04-21 20:40:18 | Last modified: | 2006-09-13 14:01:03 |
| Access level: | the public | Released: | 2004-04-21 20:40:18 |
| 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] |