NMB #10108 - Belmont Fm (Carriacou) (Miocene of Grenada)

Where: Grenada (12.5° N, 61.4° W: paleocoordinates 12.3° N, 60.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Kendace Calcareous Silt Member (Belmont Formation), Early/Lower Miocene (23.0 - 16.0 Ma)

• 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 the Kendace Calcareous Silt Member of the Belmont Fm. Jung (1971) assigns an Early Miocene age. The age is determined relative (underlying) to the Grand Bay Formation, as the other units are small and poorly preserved.

• bed-level stratigraphic resolution

Environment/lithology: deep-water; poorly lithified, calcareous siltstone

• Probably deposited in deep-water, approximately greater than 200, but no deeper than 800 m.
• Calcareous siltstone. 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

Size class: macrofossils

Reposited in the NMB

• Naturhistorisches Museum, Basel, Switzerland.

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

Purpose of describing collection: taxonomic analysis

PaleoDB collection 58649: authorized by Austin Hendy, entered by Austin Hendy on 17.02.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for Mollusca. Later publications may list non-molluscan taxa from these units. These are not available at this time.
Bivalvia
 Arcida - Limopsidae
Limopsis grenadinarum Jung 1971 clam
Gastropoda
 Thecosomata -
 Thecosomata - Cavoliniidae
Clio kendacensis Jung 1971 snail
"Vaginella aff. undulata" = Edithinella undulata Gabb 1873 snail
Vaginella "sp. A" Daudin 1800 snail
Vaginella cf. depressa Daudin 1800 snail
Vaginella grenadinarum Jung 1971 snail
 Neogastropoda - Olividae
? Jaspidella sp. Olsson 1956 olive snail
 Neogastropoda - Buccinidae
Cymatophos cf. glareosus Jung 1971 true whelk
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Ficoidea - Ficidae
Ficus ? carriacouensis Trechmann 1935 fig shell
 Pterotracheoidea - Carinariidae
Carinaria sp. Lamarck 1801 snail
 Naticoidea - Naticidae
"Natica (Naticarius) sp." = Naticarius, Polinices ? prolacteus
"Natica (Naticarius) sp." = Naticarius Dumeril 1806 moon snail
 Cypraeoidea - Cypraeidae
"Pustularia (Pustularia) caribaea" = Propustularia caribaea
"Pustularia (Pustularia) caribaea" = Propustularia caribaea Schilder 1939 cowry
 Architectonicoidea - Architectonicidae
Architectonica kartseni sundial
Subspecies: Architectonica (A.) nobilis karsteni
 Trochoidea - Trochidae
? Calliostoma sp. Swainson 1840 top snail
? Turcicula ? kendacensis Jung 1971 top snail