USGS 18204 - Matura Member, Matura: Early Pliocene, Trinidad and Tobago

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Scaphopoda - Dentaliida - Dentaliidae
Bivalvia - Nuculida - Nuculidae
Bivalvia - Nuculanida - Nuculanidae
Bivalvia - Arcida - Noetiidae
Arcopsis adamsi (Dall 1886)
Bivalvia - Arcida - Arcidae
Subspecies; Barbatia (F.) millifera latrinidadis
Arca (Arca) imbricata (Bruguière 1789)
Subspecies: Arca (A.) imbricata imbricata
Arca (Arca) zebra (Swainson 1833)
Subspecies: Arca (A.) zebra zebra
Bivalvia - Arcida - Glycymerididae
Bivalvia - Pectinida - Pectinidae
Bivalvia - Pectinida - Anomiidae
Anomia simplex d'Orbigny 1845
Bivalvia - Pectinida - Plicatulidae
Plicatula gibbosa Lamarck 1801
Bivalvia - Mytilida - Mytilidae
Bivalvia - Cardiida - Veneridae
Bivalvia - Cardiida - Chamidae
Bivalvia - Cardiida - Mactridae
Mulinia sp. Gray 1837
Bivalvia - Cardiida - Donacidae
Bivalvia - Cardiida - Tellinidae
Bivalvia - Cardiida - Cardiidae
Bivalvia - Pholadida - Corbulidae
Juliacorbula aequivalvis (Philippi 1836)
Bivalvia - Carditida - Crassatellidae
Crassinella martinicensis (d'Orbigny 1853)
Bivalvia - Carditida - Carditidae
Gastropoda - Eulimidae
Niso sp. Risso 1826
Gastropoda - Pseudomelaniidae
Gastropoda - Neotaenioglossa - Calyptraeidae
Trochita radians Lamarck 1816
Calyptraea centralis (Conrad 1841)
Gastropoda - Turritellidae
Vermicularia spirata (Philippi 1836)
Gastropoda - Naticidae
Gastropoda - Bursidae
Bursa (Marsupina) bufo (Bruguiére 1792)
Gastropoda - Triviidae
Erato maugeriae Gray 1832
Gastropoda - Ovulidae
Gastropoda - Cypraeidae
Gastropoda - Neogastropoda - Columbellidae
Zanassarina sp. (Pilsbry and Lowe 1932)
Gastropoda - Neogastropoda - Cystiscidae
Persicula (Rabicea) cf. interruptolineata (Megerle von Mühlfeld 1818)
Gastropoda - Cerithiopsidae
Gastropoda - Triphoridae
Gastropoda - Vermetidae
Gastropoda - Heterostropha - Architectonicidae
Subspecies: A. (A.) nobilis nobilis
Gastropoda - Trochidae
Calliostoma olssoni (Maury 1925)
Gastropoda - Lepetellida - Fissurellidae
see common names

Geography
Country:Trinidad and Tobago
Coordinates: 10.7° North, 61.1° West (view map)
Paleocoordinates:10.8° North, 59.9° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Pliocene
Stage: Zanclean 10 m.y. bin: Cenozoic 6
Key time interval: Early Pliocene
Age range of interval: 5.333 - 3.6 m.y. ago
Stratigraphy
Formation:Talparo Member:Matura
Regional section:Matura
Stratigraphic resolution:bed
Stratigraphy comments: 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).
Lithology and environment
Primary lithology:shelly/skeletal,brown poorly lithified argillaceous,sandy "mixed carbonate-siliciclastic"
Includes fossils?Y
Lithology description: From blocks of highly limonitic, brown coquina with intercalations of clay and silt.
Environment:shoreface
Geology comments: The Matura fauna is a typical tropical, nearshore assemblage.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:medium
Temporal resolution:time-averaged
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:some macrofossils,some microfossils
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:PRI,USNM
Collection method comments: 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.
Taxonomic list comments: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.
Metadata
Database number:60412
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Collections that are a subset of this one:60413, 60414, 60415, 60416, 60417
Created:2006-05-14 13:33:58 Last modified:2025-02-22 15:12:02
Access level:the public Released:2006-05-14 13:33:58
Creative Commons license:CC0
Reference information

Primary reference:
17317. P. Jung. 1969. Miocene and Pliocene mollusks from Trinidad. Bulletins of American Paleontology 55(247):293-697 [A. Miller/A. Hendy]