Marsupiocrinus (Amarsupiocrinus)-Manticrinus Assoc., Eastern Iowa: Telychian, Iowa
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Mollsuca indet.
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Stomatoporoidea indet.
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Bryozoa indet.
Ehrenberg 1831
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Stenolaemata
- Cryptostomata
- Fenestellidae
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Fenestellidae indet.
King 1850
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Protomegastrophia sp.
Caster 1939
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Rhynchonellata
- Rhynchonellida
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Rhynchonellida indet.
Kuhn 1949
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Rhynchonellata
- Rhynchonellida
- Machaerariidae
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Ferganella sp.
Nikiforova 1937
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Rhynchonellata
- Spiriferida
- Cyrtiidae
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Eospirifer sp.
Schuchert 1913
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Striispirifer sp.
Cooper and Muir-Wood 1951
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Dalejina sp.
Havlicek 1953
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Rhynchonellata
- Orthida
- Hesperorthidae
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Flabellitesia flabellites
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Rhynchonellata
- Orthida
- Platystrophiidae
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? Platystrophia sp.
King 1850
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Rhynchonellata
- Atrypida
- Atrypidae
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Plectatrypa sp.
Schuchert and Cooper 1930
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Atrypa "reticularis"
(Linnaeus 1758)
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| original and current combination Anomia reticularis | ||||||||||
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Rhynchonellata
- Pentamerida
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Pentamerida indet.
Schuchert and Cooper 1931
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| "clorindid(?)" | ||||||||||
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Rhynchonellata
- Pentamerida
- Stricklandiidae
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"Costistricklandia" castellana
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Trilobita
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Trilobita indet.
Walch 1771
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Crinoidea
- Monobathrida
- Patelliocrinidae
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Macrostylocrinus sp.
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Crinoidea
- Monobathrida
- Eucalyptocrinitidae
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Eucalyptocrinites depressus
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Eucalyptocrinites cf. ornatus
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Crinoidea
- Monobathrida
- Periechocrinidae
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Periechocrinus sp.
Morris 1843
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Crinoidea
- Monobathrida
- Marsupiocrinidae
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Marsupiocrinus (Amarsupiocrinus) primaevus
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Manticrinus sp. n. sp.
Ausich 1986
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Crinoidea
- Diplobathrida
- Dimerocrinitidae
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Dimerocrinites sp.
Phillips 1839
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Anthozoa
- Rugosa
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Rugosa indet.
Milne-Edwards and Haime 1850
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Anthozoa
- Favositida
- Favositidae
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Favositidae indet.
Dana 1846
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Chlorophyceae
- Receptaculitidae
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Ischadites sp.
Eichwald 1861
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| algae | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Iowa |
| Coordinates: | 42.1° North, 91.1° West (view map) | ||
| Paleocoordinates: | 20.9° South, 56.0° West | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | basin |
Time
| Period: | Silurian | Epoch: | Llandovery |
| Stage: | Telychian | 10 m.y. bin: | Silurian 1 | *Epoch: | Late/Upper Llandovery |
| Key time interval: | Telychian | ||
| Age range of interval: | 438.50000 - 433.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Scotch Grove | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Late Llandovery (C6). lower Welton member; ?Johns Creek Quarry Member | |||||
Lithology and environment
| Primary lithology: | dolomitic,shelly/skeletal packstone | ||
| Secondary lithology: | dolomitic,shelly/skeletal grainstone | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Lithology description: "This comm. occurs in the so-called flank beds around a central carbonate mound core consisting of dense dolomudstones with a limited megafauna of large colonial rugose and tabulate corals and scattered crinoidal debris. The bulk of the echinoderms occur in flanking crinoidal packstones and grainstones, some displaying graded bedding. These represent debris flows around the carbonate mounds." | |||
| Environment: | deep subtidal ramp | Tectonic setting: | cratonic basin |
| Glacial or sequence phase: | highstand systems tract | ||
| Geology comments: "Echinoderms found both as intact cups and as large debris pieces...occasional root systems..this does not appear to be a thicket community...mound core BA 3...flank facies shallow-middle BA 4" | |||
Taphonomy
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Echinoderm abundances given in table 45.26. This collection overlaps somewhat with PBDB coll. 24963. | |
Metadata
| Database number: | 26717 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | S. Peters | Research group: | marine invertebrate |
| Created: | 2002-10-25 10:07:57 | Last modified: | 2003-05-04 14:46:56 |
| Access level: | the public | Released: | 2002-10-25 10:07:57 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 4379. | T. J. Frest, C. E. Brett, and B. J. Witzke. 1999. Caradocian-Gedinnian echinoderm associations of Central and Eastern North America. Paleocommunities--a case study from the Silurian and Lower Devonian 638-783 [M. Foote/K. Koverman/P. Wagner] |