Implicaticystis-Acolocrinus-Pleurocystites Association of the Dunleith Formation: Trentonian, Missouri
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Praepleurocystites ? watkinsi
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Astroidea indet.
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Paleocrinus platybasalis
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Cyclocystoidea
- Cyclocystoididae
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Polytryphocycloides sp.
Smith and Paul 1982
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Edrioasteroidea
- Edrioblastoida
- Steganoblastidae
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Astrocystites sp.
Whiteaves 1897
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Edrioasteroidea
- Cyathocystida
- Cyathocystidae
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Cyathocystis sp.
Schmidt 1879
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Crinoidea
- Calceocrinida
- Calceocrinidae
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Cremacrinus sp.
Ulrich 1886
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Crinoidea
- Eustenocrinida
- Acolocrinidae
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Acolocrinus sp.
Kesling and Paul 1971
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Crinoidea
- Porocrinida
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Carabocrinus sp.
Billings 1857
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Porocrinus petersenae
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Crinoidea
- Hybocrinida
- Hybocrinidae
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Hybocrinus conicus
Billings 1857
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Crinoidea
- Monobathrida
- Glyptocrinidae
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Abludoglyptocrinus sp.
Kolata 1982
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Crinoidea
- Diplobathrida
- Rhodocrinitidae
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Paradiabolocrinus sp.
Brower and Veinus 1974
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Archaeocrinus sp.
Wachsmuth and Springer 1881
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Rhombifera
- Glyptocystitidae
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Glyptocystella sp.
Paul 1972
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Rhombifera
- Pleurocystitidae
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Pleurocystites filitextus
Billings 1854
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Rhombifera
- Echinosphaeritidae
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Echinosphaerites aurantium
(Gyllenhaal 1772)
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Paracrinoidea
- Platycystitida
- Malocystitidae
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Wellerocystis kimmswickensis
Foerste 1920
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Paracrinoidea
- Comarocystitida
- Amygdalocystitidae
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Oklahomacystis sp.
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Paracrinoidea
- Comarocystitida
- Comarocystitidae
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Implicaticystis symmetricus
Frest and Strimple 1982
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Implicaticystis shumardi
(Meek and Worthen 1865)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Missouri | County: | Scott |
| Coordinates: | 37.1° North, 89.6° West (view map) | ||||
| Paleocoordinates: | 25.2° South, 67.0° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| *Period: | Middle Ordovician | *Epoch: | Caradoc | *Local age/stage: | Trentonian |
| Key time interval: | Trentonian | ||
| Age range of interval: | 457.00000 - 449.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Lithology and environment
| Primary lithology: | "cross stratification",grading lithified packstone |
| Lithology description: Generally a pure echinodermal crystalline limestone (calcarenite); textures range from packstone to grainstone. Typically bedding appears massive, but on weathered outcrops units ranging from a few cm to as much as 20 cm in thickness are distinguishable. Often the unit is noncherty and crossbedded, with common graded bedding and winnowed debris piles. Locally, mottled textures characterize some beds. | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 13157 | ||
| Authorizer: | M. Foote | Enterer: | K. Koverman |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2002-01-24 10:32:19 | Last modified: | 2018-05-12 23:17:58 |
| Access level: | the public | Released: | 2002-01-24 10:32:19 |
| 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] |