NMB #10743 - Belmont Fm (Carriacou) (Miocene of Grenada)

Where: Grenada (12.4° N, 61.5° W: paleocoordinates 12.2° N, 60.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: 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 undifferentiated Belmont Formation, which forms the oldest part of the Carriacou Miocene succession.

• bed-level stratigraphic resolution

Environment/lithology: coastalpoorly lithified

• Locally the water was probably shallow; no genera suggest deeper-water environments.
• No lithology specified. Could be either calcareous fine siliciclastic or limestone? 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 58689: authorized by Austin Hendy, entered by Austin Hendy on 21.02.2006, edited by Uta Merkel

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
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
Gastropoda
 Neogastropoda - Borsoniidae
Paraborsonia cf. varicosa Sowerby 1850 snail
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Neritoidea - Neritidae
? Nerita sp. Linnaeus 1758 snail
Nerita "sp. A" Linnaeus 1758 snail
Anthozoa
 Scleractinia - Astrocoeniidae
"Actinastrea cf. portoricensis" = Astrocoenia portoricoensis
"Actinastrea cf. portoricensis" = Astrocoenia portoricoensis Vaughan 1919 stony coral