Cerro Rincon (USNM 17967): Llandovery, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Pterobranchia
- Graptoloidea
- Monograptidae
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Monograptidae indet.
Lapworth 1873
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15 specimens | |||||||||
| monograptid graptolites | ||||||||||
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Gastropoda
- Bellerophontida
- Plectonotidae
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Plectonotus sp.
Clarke 1899
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1 specimen | |||||||||
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Tentaculitida
- Tentaculitidae
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Tentaculitidae indet.
Walcott 1886
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1 specimen | |||||||||
| tentaculitid | ||||||||||
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Strophomenata
- Strophomenida
- Stropheodontidae
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Stropheodontidae indet.
Caster 1939
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1 specimen | |||||||||
| stropheodontid brach | ||||||||||
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Strophomenata
- Orthotetida
- Chilidiopsidae
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Fardenia filistriata
Boucot et al. 1972
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3 specimens | |||||||||
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Rhynchonellata
- Orthida
- Dalmanellidae
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Dalmanellidae indet.
Schuchert 1913
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1 specimen | |||||||||
| dalmanellid brach | ||||||||||
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Mendacella sp.
Cooper 1930
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1 specimen | |||||||||
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Rhynchonellata
- Athyridida
- Meristellidae
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Cryptothyrella cf. crassa
(Sowerby 1839)
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11 specimens | |||||||||
| recombined as Hindella crassa | ||||||||||
| originally entered as "Cryptothyrella cf. crassa" | ||||||||||
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Trilobita
- Phacopida
- Homalonotidae
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Homalonotidae indet.
Chapman 1890
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1 specimen | |||||||||
| homalonotid brach | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Salta |
| Coordinates: | 24.0° South, 67.0° West (view map) | ||
| Paleocoordinates: | 40.5° South, 131.8° West | ||
| Geographic resolution: | outcrop |
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: | Salar de Rincon | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: apparently the collection is from all 4 members (see below). | |||||
Lithology and environment
| Primary lithology: | hematitic,green,yellow lithified argillaceous sandstone |
| Environment: | marine indet. |
| Geology comments: Member 1: 25 m unfossiliferous [they have "graptolites?" in it by the strat column] green to yellow silt/mudstone. Member 2: 12 m quartzose f.g. ss, 0.5 m beds, limonite staining. Trilobites, tentaculitids. Member 3: 18 m silt/mudstones, similar to #1, brachiopods. Member 4: 3 m med. gr. ss, hematite cement, brachs and conularids. | |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 2866 | ||
| Authorizer: | J. Alroy | Enterer: | M. Sommers | Research group: | marine invertebrate |
| Created: | 1999-07-21 13:47:47 | Last modified: | 2017-05-23 16:34:15 |
| Access level: | the public | Released: | 2000-11-20 13:53:16 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 128. | P. E. Isaacson, B. Antelo, and A. J. Boucot. 1976. Implications of a Llandovery (Early Silurian) brachiopod fauna from Salta Province, Argentina. Journal of Paleontology 50(6):1103-1112 [J. Alroy/M. Sommers/J. Alroy] |