USGS 8302: Middle Miocene, Trinidad and Tobago
collected by Penny, Bullbrook
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Epitoniidae
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Epitonium sp.
Bolten 1798
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poorly preserved; juvenile | ||||||||||
Acrilla sp.
Adams and Adams 1860
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poorly preserved; fragment | ||||||||||
Gastropoda
- Eulimidae
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Melanella sp.
Bowdich 1822
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poorly preserved | ||||||||||
Gastropoda
- Turritellidae
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Turritella gatunensis
Conrad 1857
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SUBSPECIES: T. gatunensis caronensis n. subsp. | ||||||||||
= Turritella (Broderiptella) caronensis
Mansfield 1925
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Landau and Marques da Silva 2010 | |||||||||
Turritella altilira
Conrad 1857
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recombined as Turritella (Bactrospira) altilira | ||||||||||
SUBSPECIES: T. altilira chiriquensis | ||||||||||
Gastropoda
- Neogastropoda
- Olividae
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Olivella sp.
Swainson 1831
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poorly preserved; juvenile | ||||||||||
Gastropoda
- Neogastropoda
- Nassariidae
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Alectrion brassiensis n. sp.
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spelled with current rank as Nassarius (Alectrion) | ||||||||||
Gastropoda
- Neogastropoda
- Columbellidae
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Strombina sp.
Mörch 1852
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poorly preserved; juvenile | ||||||||||
Strombina walli n. sp.
Mansfield 1925
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recombined as Sincola (Sincola) walli | ||||||||||
Gastropoda
- Neogastropoda
- Drilliidae
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Drillia inadrina n. sp.
Mansfield 1925
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recombined as Syntomodrillia inadrina | ||||||||||
Drillia pennyi n. sp.
Mansfield 1925
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Drillia tridadina n. sp.
Mansfield 1925
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Drillia inniadda n. sp.
Mansfield 1925
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Gastropoda
- Neogastropoda
- Borsoniidae
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Microdrillia propetrina n. sp.
Mansfield 1925
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Gastropoda
- Neogastropoda
- Clathurellidae
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Glyphostoma amicta
(Guppy 1896)
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recombined as Nannodiella amicta | ||||||||||
SUBSPECIES: G. amicta rintriada n. subsp. | ||||||||||
Glyphostoma addina n. sp.
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Gastropoda
- Neogastropoda
- Turridae
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Turris brassoensis n. sp.
Mansfield 1925
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synonym of Gemmula machapoorensis | ||||||||||
Gastropoda
- Neogastropoda
- Marginellidae
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Marginella solitaria
Guppy 1896
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SUBSPECIES: M. solitaria montserratensis | ||||||||||
Marginella (Faba) bulbrooki n. sp.
Mansfield 1925
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Marginella (Faba) brassoensis n. sp.
Mansfield 1925
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Gastropoda
- Neogastropoda
- Cystiscidae
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Marginella (Closia) nitrina n. sp.
Mansfield 1925
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recombined as Granulina nitrina | ||||||||||
Gastropoda
- Neogastropoda
- Muricidae
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Typhis sp.
Montfort 1810
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poorly preserved, fragment | ||||||||||
Gastropoda
- Naticidae
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Natica canrena
(Linnaeus 1758)
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recombined as Naticarius canrena | ||||||||||
Gastropoda
- Caecidae
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Caecum properegulare n. sp.
Mansfield 1925
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Gastropoda
- Heterostropha
- Pyramidellidae
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Turbonilla sp.
Risso 1826
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poorly preserved; several spp. | ||||||||||
Odostomia sp.
Fleming 1817
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poorly preserved | ||||||||||
Pyramidella sp.
Lamarck 1799
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poorly preserved; several spp. | ||||||||||
Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica sp.
Röding 1798
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poorly preserved; juvenile | ||||||||||
Scaphopoda
- Gadilida
- Gadilidae
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Cadulus caronensis n. sp.
Mansfield 1925
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium cossmannianum
Pilsbry and Sharp 1897
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see common names |
Geography
Country: | Trinidad and Tobago | County: | Caroni |
Coordinates: | 10.4° North, 61.3° West (view map) | ||
Paleocoordinates: | 10.1° North, 58.8° West | ||
Basis of coordinate: | stated in text | ||
Geographic resolution: | outcrop |
Time
Period: | Neogene | Epoch: | Miocene |
10 m.y. bin: | Cenozoic 5 | ||
Key time interval: | Middle Miocene | ||
Age range of interval: | 15.97000 - 11.60800 m.y. ago |
Stratigraphy
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit. THICKNESS: Unknown AGE: Stated to be "Middle or Lower Miocene" in text, but potentially could be younger in more recent revisions; a Middle Miocene age is assigned here. STRATIGRAPHIC POSITION: Unknown. |
Lithology and environment
Primary lithology: | unlithified "siliciclastic" |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Unknown, presumably siliciclastic. LITHIFICATION: Assumed to be unlithified based figured specimes (free of sediment). | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Collection methods and comments
Collection excludes: | some macrofossils |
Collection methods: | field collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | USNM |
Collectors: | Penny, Bullbrook |
Collection method comments: COLLECTORS: F. W. Penny and J. A. Bullbrook (unknown date, but presumably during the 1910's-early 1920's). REPOSITORY: USNM. | |
Taxonomic list comments:COVERAGE: Exhaustive for gastropoda and scaphopoda. Bivalvia not listed, but presumably present. NOMENCLATURE: Authoritative publication with subgenus and species assignments, but with antiquated nomenclature reflecting present usage. |
Metadata
Database number: | 74920 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
Created: | 2007-09-05 21:34:30 | Last modified: | 2013-11-25 13:37:23 |
Access level: | authorizer only | Released: | 2007-09-05 21:34:30 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
25271. | W. C. Mansfield. 1925. Miocene gastropods and scaphopods from Trinidad, British West Indies. Proceedings of the United States National Museum 66(22):9116-9125 [A. Hendy/A. Hendy] |
Secondary references:
36423 | B. Landau and C. Marques da Silva. 2010. Early Pliocene gastropods of Cubagua, Venezuela: Taxonomy, palaeobiogeography and ecostratigraphy. Palaeontos 19:1-221 [A. Hendy/A. Hendy] |