K1094 - Matura Member, Matura (Pliocene of Trinidad and Tobago)

Where: Trinidad and Tobago (10.7° N, 61.1° W: paleocoordinates 10.6° N, 60.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• Collection is from the Matura Sand and Clay Member of the Talparo Formation. The Matura fauna is considered to be of early Pliocene age and is probably slightly younger than the Courbaril fauna. The Matura shell bed has variously been attributed to the Pliocene (Guppy 1864, 1867, 1874; Maury 1925; Kugler 1953; Woodring 1966) or Pleistocene (Kugler 1936).

• bed-level stratigraphic resolution

Environment/lithology: shoreface; poorly lithified, shelly/skeletal, brown, argillaceous, sandy mixed carbonate-siliciclastic sediments

• The Matura fauna is a typical tropical, nearshore assemblage.
• From blocks of highly limonitic, brown coquina with intercalations of clay and silt.

Size class: macrofossils

Reposited in the PRI, USNM

Collection methods: quarrying,

• All material descibed in this report is reposited in the Naturhistorisches Mueum, Basel, or the USNM. Additional material collection from this unit is found at PRI.

Primary reference: P. Jung. 1969. Miocene and Pliocene mollusks from Trinidad. Bulletins of American Paleontology 55(247):293-697 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 60413: authorized by Austin Hendy, entered by Austin Hendy on 14.05.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for Mollusca. Several species of corals, bryozoa, lots of spines of echinodemrs, an Ophiuran (Berry 1935), fish teeth, otoliths, Balanus, and ostracods are present. Saunders in an unpublished report listed foraminifera from this locality.
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium (Dentalium) sp. Linnaeus 1758 tusk shell
Gastropoda
 Vanikoroidea - Eulimidae
Niso sp. Risso 1826 snail
 Neotaenioglossa - Calyptraeidae
Crucibulum (Crucibulum) piliferum Guppy 1867 slipper shell
 Sorbeoconcha - Triphoridae
 Sorbeoconcha - Cerithiopsidae
"Seila cf. adamsi" = Seila adamsii
"Seila cf. adamsi" = Seila adamsii Lea 1845 snail
 Neogastropoda - Columbellidae
"Anachis (Costoanachis) obesa" = Parvanachis obesa
"Anachis (Costoanachis) obesa" = Parvanachis obesa Adams 1845 snail
 Neogastropoda - Cystiscidae
"Persicula (Rabicea) cf. interruptolineata" = Persicula interruptalineata
"Persicula (Rabicea) cf. interruptolineata" = Persicula interruptalineata Megerle von Mühlfeld 1818 snail
 Heterostropha - Pyramidellidae
Turbonilla "sp. A" Risso 1826 snail
 Trochoidea - Trochidae
"Calliostoma olssoni" = Calliostoma (Elmerlinia) olssoni
"Calliostoma olssoni" = Calliostoma (Elmerlinia) olssoni Maury 1925 top snail
 Opisthobranchia - Cylichnidae
Acteocina canaliculata Say 1826 barrel-bubble
Bivalvia
 Nuculanida - Nuculanidae
"Nuculana (Saccella) perlepida" = Saccella
"Nuculana (Saccella) perlepida" = Saccella pointed nut clam
 Pholadida - Corbulidae
Juliacorbula aequivalvis Philippi 1836 clam
"Notocorbula aff. disparilis" = Corbula (Notocorbula) clam
 Cardiida - Veneridae
Chione (Nioche) veatchiana Maury 1912 venus clam
Tivela (Tivela) austeniana Maury 1912 venus clam
 Cardiida - Donacidae
 Carditida - Crassatellidae
Crassinella martinicensis d'Orbigny 1853 clam
 Carditida - Carditidae
 Mytilida - Mytilidae
 Arcida - Arcidae
Barbatia (Barbatia) candida, "Barbatia (Acar) domingensis" = Acar domingensis, "Arca (Arca) zebra" = Byssoarca zebra
Barbatia (Barbatia) candida Helbling 1779 clam
"Barbatia (Acar) domingensis" = Acar domingensis Lamarck 1819 miniature ark
"Arca (Arca) zebra" = Byssoarca zebra Swainson 1833 ark
Subspecies: Arca (A.) zebra zebra
 Arcida - Noetiidae
Noetia (Eontia) centrota Guppy 1867 clam