Holocystites (Sepulticystis) spangleri-Triamara tumida Assoc., Middle Osgood Lst: Telychian - Wenlock, Indiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
|
|||||||
Osgoodicystis wykoffi
|
|||||||
Anthozoa
|
|||||||
Anthozoa indet.
Ehrenberg 1834
|
|||||||
Trilobita
|
|||||||
Trilobita indet.
Walch 1771
|
|||||||
Ostracoda
|
|||||||
Ostracoda indet.
Latreille 1802
|
|||||||
Rhynchonellata
- Athyridida
- Meristidae
|
|||||||
Merista sp.
Suess 1851
|
|||||||
Rhynchonellata
- Rhynchonellida
- Machaerariidae
|
|||||||
Ferganella sp.
Nikiforova 1937
|
|||||||
Rhynchonellata
- Pentamerida
- Parastrophinidae
|
|||||||
Anastrophia sp.
Hall 1867
|
|||||||
Rhynchonellata
- Atrypida
- Atrypidae
|
|||||||
Atrypa sp.
Dalman 1828
|
|||||||
Rhynchonellata
- Atrypida
- Atrypinidae
|
|||||||
Atrypina sp.
Hall and Clarke 1893
|
|||||||
unclassified
|
|||||||
Bryozoa indet.
Ehrenberg 1831
|
|||||||
Holocystitidae
|
|||||||
Holocystites (Megacystites) abnormis
(Hall 1864)
|
|||||||
Holocystites (Holocystites) alternatus
(Hall 1861)
|
|||||||
Holocystites (Sepulticystis) spangleri
(Miller 1891)
|
|||||||
Aristocystitidae
|
|||||||
Triamara tumida
|
|||||||
Crinoidea
|
|||||||
Inadunata indet.
Wachsmuth and Springer 1897
|
|||||||
Crinoidea
- Monobathrida
- Eucalyptocrinitidae
|
|||||||
Eucalyptocrinites sp.
Goldfuss 1831
|
|||||||
Rhombifera
- Caryocrinitidae
|
|||||||
Caryocrinites sp.
Say 1825
|
|||||||
Blastoidea
- Coronata
- Stephanocrinidae
|
|||||||
Cupulocorona osgoodensis
|
|||||||
Cupulocorona gemmiformis
(Hall 1872)
|
|||||||
see common names |
Geography
Country: | United States | State/province: | Indiana |
Coordinates: | 38.3° North, 85.7° West (view map) | ||
Paleocoordinates: | 27.4° South, 53.7° West | ||
Basis of coordinate: | based on nearby landmark | ||
Geographic resolution: | local area |
Stratigraphy
Formation: | Osgood Limestone | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: "?Late Llandoverian (C6) to ?middle Wenlockian. Lower 7 cm of Middle Osgood Limestone" |
Lithology and environment
Primary lithology: | pyritic grainstone | ||
Secondary lithology: | "mixed carbonate-siliciclastic" | ||
Lithology description: "The unit in Indiana is a rubbly limestone (grainstone) with varying amounts of clastic debris...pyrite crystal clusters...some pyrite replacement.." | |||
Environment: | deep subtidal indet. | Tectonic setting: | cratonic basin |
Geology comments: "diploporites mostly thecae...Most of the larger skeletal debris is echinodermal...brachiopods mostly articulated...There is little indication of current or wave action, but some of biogenic reworking. Echinoderm holdfasts not seen, pelmatozoan root systems rare...most likely slightly restricted qiet offshore basin with low to moderation sedimentation rate, most likely outer BA3-4"
SEP environmental call based on given information and knowledge of regional geology |
Taphonomy
Collection methods and comments
Collection excludes: | some macrofossils |
Reason for describing collection: | paleoecologic analysis |
Taxonomic list comments:Only echinoderms and brachiopods are listed. Fauna also said to include "a few bryozoans" as well as trilobites, ostracodes, and corals. |
Metadata
Database number: | 26806 | ||
Authorizer: | M. Foote | Enterer: | M. Foote |
Modifier: | S. Peters | Research group: | marine invertebrate |
Created: | 2002-11-01 15:24:50 | Last modified: | 2003-05-04 12:11:13 |
Access level: | the public | Released: | 2002-11-01 15:24:50 |
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] |