USGS 10991 - Courbaril Member, Point Courbaril: Early/Lower Pliocene, Trinidad and Tobago
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium (Dentalium) divulgatum
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Bivalvia
- Arcida
- Noetiidae
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Noetia (Noetia) sheldoniana
(Maury 1912)
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Bivalvia
- Arcida
- Arcidae
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Anadara (Anadara) inaequilateralis
(Maury 1917)
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Anadara (Cunearca) filicata
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Lunarca billingsiana
(Maury 1912)
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Bivalvia
- Pectinida
- Pectinidae
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Aequipecten (Plagioctenium) sp.
(Dall 1898)
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| synonym of Argopecten | ||||||||||
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Bivalvia
- Pectinida
- Anomiidae
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Anomia simplex
d'Orbigny 1845
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Bivalvia
- Lucinida
- Lucinidae
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Lucina (Lucinisca) roigi
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Bivalvia
- Pholadida
- Corbulidae
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Caryocorbula (Caryocorbula) helenae
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Caryocorbula (Caryocorbula) sp.
Gardner 1926
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Juliacorbula aequivalvis
(Philippi 1836)
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Bivalvia
- Cardiida
- Cardiidae
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Trigoniocardia (Trigoniocardia) maturensis
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Trachycardium (Dallocardia) sanctidavidis
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| spelled with current rank as Dallocardia | ||||||||||
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Bivalvia
- Cardiida
- Semelidae
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Semele laevis
(Sowerby 1833)
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| Subspecies: Semele laevis costaricensis | ||||||||||
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Semele aff. anteriocosta
Vokes 1938
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Cumingia galbensis
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Abra cf. aequalis
(Say 1822)
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Bivalvia
- Cardiida
- Donacidae
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Donax striatus
Linnaeus 1767
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Bivalvia
- Cardiida
- Tellinidae
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Moerella (Moerella) elinguis
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| spelled with current rank as Tellina (Moerella) | ||||||||||
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Eurytellina melajoensis
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| spelled with current rank as Tellina (Eurytellina) | ||||||||||
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? Eurytellina oligoscissurata
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| spelled with current rank as Tellina (Eurytellina) | ||||||||||
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Bivalvia
- Cardiida
- Veneridae
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Chione (Lirophora) sanctidavidis
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| original and current combination Lirophora | ||||||||||
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Dosinia (Dosinia) sp.
Scopoli 1777
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Chione (Nioche) veatchiana
Maury 1912
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Pitar (Lamelliconcha) circinatus
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Bivalvia
- Cardiida
- Chamidae
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Chama cf. macerophylla
Gmelin 1791
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| [entered as Chama macrophylla] | ||||||||||
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= Chama cf. macerophylla
Gmelin 1791
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Rosenberg 2005 | |||||||||
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Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana (Saccella) ludificans
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| original and current combination Saccella | ||||||||||
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Gastropoda
- Lepetellida
- Fissurellidae
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Diodora cavenensis
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Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica (Pseudotorinia) cf. semidecussata
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| original and current combination Pseudotorinia | ||||||||||
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Gastropoda
- Neritidae
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Neritina (Vitta) cf. virginia
(Linnaeus 1758)
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| recombined as Neritina virginea | ||||||||||
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Gastropoda
- Epitoniidae
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Epitonium (Epitonium) aff. foliaceicostatum
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Epitonium (Epitonium) humphreysi
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Gastropoda
- Cerithiidae
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Cerithium harrisi
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Bittium (Bittiolum) fretense
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| original and current combination Bittiolum | ||||||||||
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Gastropoda
- Naticidae
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Natica (Naticarius) aff. canrena
(Linnaeus 1758)
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| recombined as Naticarius canrena | ||||||||||
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Gastropoda
- Neogastropoda
- Columbellidae
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Anachis (Anachis) asphaltoda
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Anachis (Costoanachis) obesa
(Adams 1845)
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| recombined as Parvanachis obesa | ||||||||||
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Strombina (Sincola) crassilabrum
(Guppy 1874)
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| recombined as Sincola (Sincola) crassilabrum | ||||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius galbanus
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Nassarius (Uzita) trinitatensis
Jung 1969
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Nassarius (Phrontis) vibex
(Say 1822)
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Gastropoda
- Neogastropoda
- Olividae
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Olivella (Minioliva) fundarugata
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Gastropoda
- Neogastropoda
- Mangeliidae
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Ithycythara sp.
Woodring 1928
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Gastropoda
- Neogastropoda
- Marginellidae
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Prunum (Prunum) dallianum
(Maury 1912)
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Gastropoda
- Neogastropoda
- Muricidae
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Murex (Chicoreus) cf. brevifrons
(Lamarck 1822)
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= Chicoreus (Triplex) cornurectus
Guppy 1876
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Landau and Marques da Silva 2010 | |||||||||
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Cymia brightoniana
Maury 1925
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| recombined as Cymia (Cymia) brightoniana | ||||||||||
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Thais (Stramonita) cf. haemostoma
(Linnaeus 1767)
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Risomurex galbensis
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Gastropoda
- Triphoridae
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Triphora guppyi
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Calyptraea centralis
(Conrad 1841)
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| see common names | ||||||||||
Geography
| Country: | Trinidad and Tobago |
| Coordinates: | 10.2° North, 61.6° West (view map) |
| Paleocoordinates: | 10.2° North, 60.9° West |
| 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/Lower Pliocene | ||
| Age range of interval: | 5.33300 - 3.60000 m.y. ago |
Stratigraphy
| Formation: | Morne l'Enfer | Member: | Courbaril | ||
| Local section: | Point Galba | ||||
| Regional section: | Brighton | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Collection is from the Courbaril Sand and Clay Member of the Upper Morne l'Enfer Formation. The Courbaril fauna is considered to be of early Pliocene age and is probably slightly older than the Matura fauna. | |||||
Lithology and environment
| Primary lithology: | poorly lithified sandstone |
| Secondary lithology: | claystone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Poor reporting of lithologies. Named as the "Courbaril Sand and Clay Member", so these lithologies are assigned. | |
| Environment: | shoreface |
| Geology comments: The assemblage as a whole points to a nearshore environment, with some brackish influence (compared with Melajo Clay assemblages). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
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. Crab claws, corals, fish teeth, and scarce foraminifera also exist in the unit, though are not listed. Van de Bold (1963) also lists ostracords from several localities. | |
Metadata
| Database number: | 60409 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Collections that are a subset of this one: | |||
| Created: | 2006-05-14 13:13:07 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2006-05-14 13:13:07 |
| Creative Commons license: | CC BY |
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] |
Secondary references:
| 36423 | B. Landau and C. Marques da Silva. 2010. Early Pliocene gastropods of Cubagua, Venezuela: Taxonomy, palaeobiogeography and ecostratigraphy. Palaeontos 19:1-221 [A. Hendy/A. Hendy] | |
| 19419 | G. Rosenberg. 2005. Malacolog 4.0: A database of Western Atlantic marine Mollusca. [WWW database (version 4.1.0)] URL http://data.acnatsci.org/wasp [A. Hendy/A. Hendy] |