Gotatrypa - Dicoelosia community, sample A924a: Aeronian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Crinoidea
|
||||||||||
|
Crinoidea indet.
Miller 1821
|
14 elements | |||||||||
| crinoid ossicles | ||||||||||
|
Rhynchonellata
- Rhynchonellida
- Leptocoeliidae
|
||||||||||
|
Eocoelia hemisphaerica
(Sowerby 1839)
|
5 specimens | |||||||||
|
Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
|
||||||||||
|
Ancillotoechia eva
(Billings 1866)
|
2 specimens | |||||||||
|
Rhynchonellata
- Rhynchonellida
- Rhynchotrematidae
|
||||||||||
|
Stegerhynchus peneborealis
(Twenhofel 1928)
|
20 specimens | |||||||||
|
Rhynchonellata
- Atrypida
- Anazygidae
|
||||||||||
|
Zygatrypa sp.
|
4 specimens | |||||||||
| smooth variety | ||||||||||
|
Rhynchonellata
- Atrypida
- Lissatrypidae
|
||||||||||
|
Lissatrypa sp.
Twenhofel 1914
|
1 specimen | |||||||||
|
Rhynchonellata
- Atrypida
- Atrypidae
|
||||||||||
|
Gotatrypa sp.
|
331 specimens | |||||||||
|
Rhynchonellata
- Orthida
- Dicoelosiidae
|
||||||||||
|
Dicoelosia dauphinensis
|
36 specimens | |||||||||
| (1 measurement) | ||||||||||
|
Rhynchonellata
- Orthida
- Dalmanellidae
|
||||||||||
|
Resserella sp.
Bancroft 1928
|
86 specimens | |||||||||
|
Visbyella sp.
Walmsley et al. 1968
|
1 specimen | |||||||||
|
Strophomenata
- Strophomenida
- Sowerbyellidae
|
||||||||||
|
Ygerodiscus striatocostatus
|
45 specimens | |||||||||
| original and current combination Eoplectodonta (Ygerodiscus) | ||||||||||
|
Strophomenata
- Orthotetida
- Chilidiopsidae
|
||||||||||
|
Coolinia sp.
Bancroft 1949
|
1 specimen | |||||||||
| spelled with current rank as Fardenia (Coolinia) | ||||||||||
|
Tentaculitida
- Tentaculitidae
|
||||||||||
|
Tentaculitidae indet.
Walcott 1886
|
2 specimens | |||||||||
| tentaculitids | ||||||||||
|
unclassified
|
||||||||||
|
Bryozoa indet.
Ehrenberg 1831
|
1 specimen | |||||||||
|
Trilobita
|
||||||||||
|
Trilobita indet.
Walch 1771
|
1 specimen | |||||||||
| trilobites | ||||||||||
|
Anthozoa
- Rugosa
|
||||||||||
|
Rugosa indet.
Milne-Edwards and Haime 1850
|
10 specimens | |||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Quebec |
| Coordinates: | 49.5° North, 63.0° West (view map) | ||
| Paleocoordinates: | 21.1° South, 35.3° West | ||
| Geographic resolution: | small collection |
Time
| Period: | Silurian | Epoch: | Llandovery |
| Stage: | Aeronian | 10 m.y. bin: | Silurian 1 |
| *Period: | Early/Lower Silurian | ||
| *International age/stage: | Late/Upper Aeronian | ||
| Key time interval: | Aeronian | Zone: | Stimulograptus sedgwickii |
| Age range of interval: | 440.80000 - 438.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Jupiter | Member: | Richardson | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Uppermost Richardson Member. | |||||
Lithology and environment
| Primary lithology: | gray,green lithified lime mudstone |
| Lithology description: greenish gray lime mudstone. | |
| Environment: | offshore shelf |
| Geology comments: Distal shelf setting about 80-100 km offshore from the Laurentia paleocontinent on the W side of the Iapetus Ocean. | |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection excludes: | difficult macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 5784 | ||
| Authorizer: | J. Alroy | Enterer: | M. Sommers | Research group: | marine invertebrate |
| Created: | 1999-12-01 14:20:46 | Last modified: | 1999-12-01 16:20:46 |
| Access level: | the public | Released: | 2000-11-20 13:53:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 363. | J. Jin and P. Copper. 1999. The deep-water brachiopod Dicoelosia King, 1850, from the early Silurian tropical carbonate shelf of Anticosti Island, eastern Canada. Journal of Paleontology 73(6):1042-1055 [J. Alroy/M. Sommers/J. Alroy] |