Cryptothyrella-Mendacella Community, Merida Andes: Llandovery, Venezuela
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Mendacella cf. uberis
(Billings 1866)
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Rhynchonellata
- Orthida
- Dalmanellidae
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Resserella sp.
Bancroft 1928
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| genus name in quotes | ||||||||||
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Rhynchonellata
- Atrypida
- Atrypinidae
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Eospirigerina gaspeensis
(Schuchert and Cooper 1930)
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Ancillotoechia sp.
Havlicek 1959
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| genus name in quotes | ||||||||||
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Rhynchonellata
- Athyridida
- Meristellidae
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Cryptothyrella cf. crassa
(Sowerby 1839)
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| recombined as Hindella crassa | ||||||||||
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Aphanomena cf. mullochensis
(Reed 1917)
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| recombined as Eostropheodonta mullochensis | ||||||||||
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Leptaena cf. valentia
Cocks 1968
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| recombined as Leptaena (Leptaena) valentia | ||||||||||
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Plectodonta (Eoplectodonta) sp.
Kozlowski 1929
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| sp. A | ||||||||||
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Strophomenata
- Orthotetida
- Chilidiopsidae
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Fardenia filistriata
Boucot et al. 1972
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| see common names | ||||||||||
Geography
| Country: | Venezuela |
| Coordinates: | 8.6° North, 71.2° West (view map) |
| Paleocoordinates: | 54.7° South, 86.5° West |
| Basis of coordinate: | based on political unit |
| Geographic resolution: | basin |
Time
| Period: | Silurian | Epoch: | Llandovery |
| 10 m.y. bin: | Silurian 1 | *Epoch: | Early/Lower Llandovery - Middle Llandovery |
| Key time interval: | Llandovery | ||
| Age range of interval: | 443.80000 - 433.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | El Horno | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: see Boucot et al. 1972--PBDB ref. 7026. This was originally part of the Caparo Formation, but that is now restricted to the Sandbian. | |||||
Lithology and environment
| Primary lithology: | argillaceous sandstone |
| Includes fossils? | Y |
| Lithology description: "Occurs in muddy sandstones as largely disarticulated shells scattered on bedding planes." | |
| Environment: | marine indet. |
| Geology comments: "A moderate energy environment is indicated. A BA 2 assignment is indicated on the basis of materials seen elsewhere." | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 25068 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2002-08-27 13:05:38 | Last modified: | 2018-04-27 23:51:28 |
| Access level: | the public | Released: | 2002-08-27 13:05:38 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 7007. | A. J. Boucot, J. L. Benedetto, Y. Grahn, J. H. G. Melo, T. M. Sanchez and B. A. Waisfeld. 1999. South American marine Silurian communities. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 841-848 [M. Foote/M. Foote/M. Foote] |