USGS 9195: Late/Upper Miocene, Trinidad and Tobago
collected by Penny, Bullbrook

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Aimulosa sp.
Gastropoda - Vermetidae
Petaloconchus alcimus n. sp. Mansfield 1925
recombined as Petaloconchus sculpturatus alcimus
Gastropoda - Neogastropoda - Mitridae
Mitra longa Gabb 1873
SUBSPECIES: M. longa couvensis
    = Subcancilla couvensis Maury 1925
Landau and Marques da Silva 2010
Gastropoda - Neogastropoda - Conidae
Conus springvalensis n. sp. Mansfield 1925
recombined as Conus imitator springvalensis
Gastropoda - Neogastropoda - Costellariidae
Turricula springvaleensis n. sp. Mansfield 1925
recombined as Fusiturricula springvaleensis
Gastropoda - Neogastropoda - Cystiscidae
Marginella (Persicula) propeobesa n. sp. Mansfield 1925
recombined as Persicula propeobesa
Gastropoda - Neogastropoda - Marginellidae
Marginella springvalensis Maury 1925
recombined as Prunum springvalensis
Marginella calypsonis Maury 1925
recombined as Prunum calypsonis
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria springvalenensis n. sp.
Gastropoda - Neogastropoda - Olividae
Oliva cylindrica Sowerby 1850
Gastropoda - Neogastropoda - Ancillariidae
Ancilla caroniana Maury 1925
recombined as Eburna caroniana
Includes: Ancilla caroniana springvalensis n. subsp.
Gastropoda - Neogastropoda - Buccinidae
Solenosteira semiglobosa Guppy 1911
synonym of Solenosteira (Solenosteira) cochlearis
Gastropoda - Naticidae
Natica youngi Maury 1917
Natica canrena (Linnaeus 1758)
recombined as Naticarius canrena
Gastropoda - Turritellidae
Turritella planigyrata Guppy 1867
recombined as Turritella (Broderiptella) planigyrata
Vermicularia sp. Lamarck 1799
Gymnolaemata - Cheilostomata - Calloporidae
Hemiseptella sp.
Gymnolaemata - Ctenostomata - Terebriporidae
Terebripora sp.
see common names

Geography
Country:Trinidad and Tobago County:Caroni
Coordinates: 10.5° North, 61.2° West (view map)
Paleocoordinates:10.3° North, 59.8° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Miocene
Age range of interval:11.63000 - 5.33300 m.y. ago
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit. THICKNESS: Unknown AGE: Stated to be "Upper Miocene" in text, but potentially could be younger in more recent revisions; a Late Miocene age is assigned here. STRATIGRAPHIC POSITION: Unknown position.
Lithology and environment
Primary lithology: unlithified "siliciclastic"
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Unknown lithology, presumably siliciclastic. LITHIFICATION: Assumed to be unlithfied based on figured specimes (largely free of sediment).
Environment:marine indet.
Geology comments: ENVIRONMENT: No environmental data reported.
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. Byrozoans identified by Bassler (USNM).
Metadata
Database number:74955
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2007-09-08 00:29:07 Last modified:2013-11-25 13:37:23
Access level:the public Released:2008-09-08 00:29:07
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]