NHMB Loc. 10437 - Caparo Clay Mbr (Pliocene of Trinidad and Tobago)

Where: Trinidad and Tobago (10.6° N, 61.3° W: paleocoordinates 10.6° N, 60.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Caparo Clay Member (Talparo Formation), Early/Lower Pliocene (5.3 - 3.6 Ma)

• SOURCE: collected from within a 15 ft lens of sandstone situated in the upper part of the Caparo Clay. STRATIGRAPHIC RELATIONS: The Calparo Clay Mbr is the middle member in the Talparo Fm. The Matura Fm is probably equivalent to the Calparo Clay. BIOSTRATIGRAPHY: no biostratigraphic data reported, but is assigned an Early Pliocene age in the text and correlated to the Marura Fm, also Pliocene in age.

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; unlithified, glauconitic, sideritic, conglomeratic sandstone

• DEPTH: marine, neashore environment. SALINITY: slight brackish water influence. THERMAL TOLERANCES: no specific details, presumably tropical.
• Limonitic or glauconitic conglomerate sandstone.

Size class: macrofossils

Collection methods: quarrying,

• COLLECTOR: Karl Rohr (1937). REPOSITORY: Reposited at NHMB.

Primary reference: P. Jung. 1969. A Pliocene molluscan faunule from Trinidad. Bulletins of American Paleontology 7:85-89 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61297: authorized by Austin Hendy, entered by Austin Hendy on 04.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• IDENTIFIER: P. Jung (1969). COVERAGE: perhaps not exhaustive, but fairly representative fauna. NOMENCLATURE: relatively modern nomenclature used, mostly species-level resolution.
Gastropoda
 Lepetellida - Fissurellidae
Diodora cayenensis Lamarck 1822 snail
 Neritoidea - Neritidae
Neritina sp. Lamarck 1816 snail
 Cerithioidea - Turritellidae
"Turritella (Broderiptella) aff. planigyrata" = Turritella (Broderiptella) planigyrata
"Turritella (Broderiptella) aff. planigyrata" = Turritella (Broderiptella) planigyrata Guppy 1867 turret shell
 Cerithioidea - Modulidae
Modulus sp. Gray 1842 snail
 Neotaenioglossa - Calyptraeidae
"Crucibulum (Crucibulum) piliferum" = Crucibulum (Crucibulum) piliferum
"Crucibulum (Crucibulum) piliferum" = Crucibulum (Crucibulum) piliferum Guppy 1867 slipper shell
 Sorbeoconcha - Naticidae
"Natica (Naticarius) aff. canrena" = Naticarius canrena
"Natica (Naticarius) aff. canrena" = Naticarius canrena Linnaeus 1758 moon snail
 Sorbeoconcha - Cerithiopsidae
Cerithiopsis sp. Hanley 1849 snail
 Sorbeoconcha - Triphoridae
Triphora sp. Blainville 1828 snail
 Neogastropoda - Olividae
 Neogastropoda - Marginellidae
"Prunum (Prunum) aff. dallianum" = Prunum (Prunum) dallianum
"Prunum (Prunum) aff. dallianum" = Prunum (Prunum) dallianum Maury 1912 margin shell
Bivalvia
 Mytilida - Mytilidae
Brachidontes sp. Swainson 1840 mussel
 Pectinida - Pectinoidae
Aequipecten (Plagioctenium) sp. Fischer 1886 scallop
 Pectinida - Anomiidae
Anomia simplex d'Orbigny 1845 jingle
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Arcida - Noetiidae
Noetia (Eontia) centrota Guppy 1867 clam
 Cardiida - Cardiidae
"Trachycardium (Dallocardia) sanctidavidis" = Dallocardia
"Trachycardium (Dallocardia) sanctidavidis" = Dallocardia cockle
 Cardiida - Semelidae
Semele purpurascens Gmelin 1791 clam
 Cardiida - Donacidae
Donax cf. striatus Linnaeus 1767 clam
 Cardiida - Tellinidae
Strigilla (Pisostrigilla) pisiformis Linnaeus 1758 tellin clam
 Pholadida - Corbulidae
Juliacorbula aequivalvis Philippi 1836 clam
 Carditida - Crassatellidae
Crassinella sp. Guppy 1874 clam