NMB #10703 - Grand Bay Fm (Carriacou): Middle Miocene, Grenada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Caryophylliidae
Caryophylliidae indet. Gray 1847
Anthozoa - Scleractinia - Flabellidae
Flabellum ex gr. pavoninum Lesson 1831
Scaphopoda - Dentaliida - Dentaliidae
Dentalium cf. uscarinanum
Bivalvia - Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778
Bivalvia - Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758
Bivalvia - Pectinida - Pectinidae
Pecten aff. ventonensis Cooke 1919
Chlamys sp. Röding 1798
Bivalvia - Carditida - Crassatellidae
Eucrassatella sp. Iredale 1924
Bivalvia - Carditida - Carditidae
Venericardia sp. Lamarck 1801
Bivalvia - Cardiida - Cardiidae
Trigoniocardia sp. Dall 1900
Gastropoda - Trochidae
Calliostoma sp. Swainson 1840
Gastropoda - Neritidae
Nerita (? Nerita) exuvioides (Trechmann 1935)
recombined as Nerita (Theliostyla) exuvioides
Gastropoda - Cerithiidae
Rhinoclavis (Ochetoclava) sp. (Woodring 1928)
Gastropoda - Turritellidae
Turritella (Bactrospira) altilira (Conrad 1857)
Subspecies: Turritella (Bactrospira) altilira altilira
Gastropoda - Vermetidae
Serpulorbis (Serpulorbis) sp. Sasso 1827
Gastropoda - Ficidae
Ficus carriacouensis Trechmann 1935
Gastropoda - Cypraeidae
Macrocypraea cf. zebra (Linnaeus 1758)
Gastropoda - Neogastropoda - Olividae
Oliva (? Strephonella) delata Jung 1971
Oliva (? Omogymna) valens Jung 1971
Gastropoda - Neogastropoda - Turridae
Polystira opulenta Jung 1971
Gastropoda - Neogastropoda - Conidae
Conus aff. tallis
Conus sp. Linnaeus 1758
Conus cf. imitator Brown and Pilsbry 1911
Conus cf. consobrinus Sowerby 1850
Gastropoda - Neogastropoda - Drilliidae
Hindsiclava consors (Sowerby 1850)
Gastropoda - Neogastropoda - Terebridae
Terebra lehneri Rutsch 1934
Terebra (? Myurellina) sp. Bartsch 1923
Gastropoda - Neogastropoda - Muricidae
Chicoreus (Chicoreus) cornurectus (Guppy 1876)
    = Chicoreus jungi Vokes 1990
Landau and Marques da Silva 2010
Gastropoda - Strombidae
Strombus sp. Linnaeus 1758
Gastropoda - Cassidae
? Semicassis sp. Mörch 1852
Gastropoda - Bursidae
Bursa rugosa (Sowerby 1835)
2 specimens
Gastropoda - Neotaenioglossa - Calyptraeidae
Crucibulum sp. Schumacher 1817
see common names

Geography
Country:Grenada
Coordinates: 12.5° North, 61.4° West (view map)
Paleocoordinates:12.2° North, 61.1° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5
Key time interval:Middle Miocene
Age range of interval:15.98000 - 11.63000 m.y. ago
Stratigraphy
Formation:Grand Bay
Local section:Point St Hilaire
Stratigraphic resolution:bed
Stratigraphy comments: The principal, nominal sedimentary units of the mid-Tertiary succession of Carriacou are the Belmont Formation (lower Miocene), Kendeace Formation (lower Miocene), Carriacou Formation (middle Miocene) and Grand Bay Formation (middle Miocene). The collection originates from sandy facies of the Grand Bay Fm. Jung (1971) assigns this a Middle Miocene age based on faunal affinities with other circum-Caribbean units.
Lithology and environment
Primary lithology: poorly lithified tuff
Includes fossils?Y
Lithology description: Tuffaceous facies. From specimens presented in photgraphic plates most material from Carriacou appears to be from poorly-lithified as opposed to cemented, or unconsolidated sediments. No information provided in text
Environment:transition zone/lower shoreface
Geology comments: Most collections of the Grand Bay Fm may have lived in inner shelf depths of 20-50 m, although some may be deeper, or at least have had shallow-water fauna transported offshore. The fauna of the tuffaceous facies appears to have been deposited in slightly shallower water and is here assigned a "transition zone/lw shoreface" environment.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:good
Collection methods and comments
Collection methods:field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:NMB
Collection method comments: Naturhistorisches Museum, Basel, Switzerland.
Taxonomic list comments:Exhaustive for Mollusca. Later publications may list non-molluscan taxa from these units. These are not available at this time.
Metadata
Database number:58676
Authorizer:A. Hendy, W. Kiessling Enterer:A. Hendy, U. Merkel
Research group:marine invertebrate
Created:2006-02-20 10:25:05 Last modified:2013-11-25 13:37:23
Access level:the public Released:2006-02-20 10:25:04
Creative Commons license:CC BY
Reference information

Primary reference:
16650. P. Jung. 1971. Fossil mollusks from Carriacou, West Indies. Bulletins of American Paleontology 61(269):1-262 [A. Miller/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]