Belmont Formation - Government Quarry (Pleistocene of Bermuda)

Also known as Loc. 11

Where: Bermuda (32.3° N, 64.7° W: paleocoordinates 32.3° N, 64.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Belmont Formation, Middle Pleistocene (0.8 - 0.1 Ma)

• STRATIGRAPHIC RELATIONS: From Belmont Formation, which lies between the Walsingham Fm (Early-Middle Pleistocene) and the Devonshire Fm (Late Pleistocene). THICKNESS: Unknown thickness of unit AGE: Shells are radiometrically dated to 300 Ka. STRATIGRAPHIC POSITION: Unknown position with unit.

• bed-level stratigraphic resolution

Environment/lithology: foreshore; poorly lithified, calcareous sandstone

• ENVIRONMENT: Shallow-marine, beach, and dune.
• SPECIFIC LITHOLOGY: Complex shallow-marine, beach, and poorly developed dune calcarenites. LITHIFICATION: Poorly lithified, presumed based on age and facies description (poorly developed, calcarenite).

Size class: macrofossils

Preservation: original aragonite, original calcite

Reposited in the ANSP

Collection methods: quarrying,

• COLLECTOR: H.G. Richards and T. Skymer (June, 1967), B. Bitters (June, 1968), and previously S. B. Upchurch and L. Vacher. REPOSITORY: Dept. of Geology, Academy of Natural Sciences.

Primary reference: H. G. Richards, R. T. Abbott, and T. Skymer. 1969. The marine Pleistocene mollusks of Bermuda. Notulae Naturae 425:1-10 [A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 67964: authorized by Austin Hendy, entered by Austin Hendy on 19.12.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for Mollusca. NOMENCLATURE: Not an authoritative publication, but identifications by specialists, with species level designations.
Bivalvia
 Arcida - Glycymerididae
"Glycymeris pectinata" = Tucetona pectinata
"Glycymeris pectinata" = Tucetona pectinata Gmelin 1791 clam
 Pectinida - Pectinoidae
Spondylus americanus Hermann 1781 scallop
 Pectinida - Limidae
"Lima caribaea" = Lima (Lima) caribaea
"Lima caribaea" = Lima (Lima) caribaea d'Orbigny 1853 file clam
 Pectinida - Plicatulidae
Plicatula gibbosa Lamarck 1801 scallop
Gastropoda
 Opisthobranchia - Bullidae
Bulla striata Bruguiére 1792 snail
 Neogastropoda - Conidae
"Conus bermudensis" = Conus mindanus
"Conus bermudensis" = Conus mindanus Hwass 1792 cone shell
 Vanikoroidea - Hipponicidae
 Basommatophora - Siphonariidae
Siphonaria alternata Say 1826 pulmonate
 Turbinoidea - Turbinidae
Astraea sp., "Astraea phoebia" = Astralium phoebium
Astraea sp. Röding 1798 snail
"Astraea phoebia" = Astralium phoebium Röding 1798 snail