Where: Trinidad and Tobago (10.6° N, 61.1° W)
• Paleocoordinates: 10.8° N, 58.5° W (Wright 2013)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Melajo Clay Member (Springvale Formation), Late/Upper Miocene (11.6 - 5.3 Ma)
• The Melajo Clay Member of the Springvale Formation is correlated with the Savaneta Glaconitic Sandstone Member of the Springvale Formation, although part of it may be younger. The Melajo fauna is late Miocene in age. The Melajo Clay rests transgressively on the phyllites of the Northern Range with a basal conglomerate of about 1 m thickness. The conglomerate graes into a 1.5 m thick limestone, which is overlain by a bed of sand of about 1 m thickness. Above the sand is the Melajo Clay. The total thickness of the Melajo Clay is about 200 ft. It is unconformably overlain by Pleistocene sand and gravel deposits.
• bed-level stratigraphic resolution
Environment/lithology: offshore; unlithified, yellow, blue, silty claystone and unlithified, coarse-grained sandstone
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 60634: authorized by Austin Hendy, entered by Austin Hendy on 19.05.2006
Creative Commons license: CC0 (CC0)
Taxonomic list
Gastropoda | |
"Neritina (Vitta) cf. virginia" = Neritina virginea
"Neritina (Vitta) cf. virginia" = Neritina virginea Linnaeus 1758 snail | |
"Calliostoma olssoni" = Calliostoma (Elmerlinia) olssoni, "Calliostoma decipiens" = Calliostoma (Calliostoma) decipiens
"Calliostoma olssoni" = Calliostoma (Elmerlinia) olssoni Maury 1925 top snail
"Calliostoma decipiens" = Calliostoma (Calliostoma) decipiens Guppy 1867 top snail | |
Acteocina canaliculata Say 1826 barrel-bubble
Cylichnella altera snail | |
Rhizorus "sp. B" Montfort 1810 snail
Sulcoretusa aff. sulcata d'Orbigny 1841 snail | |
Polinices stanislasmeunieri, "Natica (Naticarius) aff. canrena" = Naticarius canrena
Polinices stanislasmeunieri Maury 1917 moon snail
"Natica (Naticarius) aff. canrena" = Naticarius canrena Linnaeus 1758 moon snail | |
"Crassispira (Crassispira) cf. caroniana" = Hindsiclava caroniana, Agladrillia lassula
"Crassispira (Crassispira) cf. caroniana" = Hindsiclava caroniana Maury 1925 snail
Agladrillia lassula snail | |
Ithycythara hilaris snail | |
Strioterebrum cf. baculiforme auger snail
Strioterebrum aff. laevifasciola Maury 1917 auger snail | |
Polystira "sp. B" Woodring 1928 turrid | |
Eupleura lehneri Jung 1969 murex snail
Calotrophon hutchisoni murex snail | |
"Bullata maiae" = Closia (Bullata)
"Bullata maiae" = Closia (Bullata) volute | |
Nassarius (Uzita) trinitatensis Jung 1969 snail | |
Strombinophos perdoctus true whelk | |
"Strombina (Sincola) crassilabrum" = Sincola (Sincola) crassilabrum1, "Anachis (Costoanachis) obesa" = Parvanachis obesa, Anachis (Costoanachis) fraudans
"Anachis (Costoanachis) obesa" = Parvanachis obesa Adams 1845 snail | |
"Olivella (Dactylidia) mutica" = Olivella mutica, Olivella (Minioliva) fundarugata
"Olivella (Dactylidia) mutica" = Olivella mutica Say 1822 olive snail
Olivella (Minioliva) fundarugata olive snail | |
Cyclostremiscus (Ponocyclus) pentagonus Gabb 1873 snail | |
Miraclathurella ralla snail
Carinodrillia meraca snail | |
Epitonium (Asperiscala) rohri wentletrap
Epitonium (Epitonium) aff. foliaceiscostatum wentletrap | |
Calyptraea centralis Conrad 1841 slipper shell | |
Cerithium harrisi cerith snail | |
Turritella (Broderiptella) planigyrata Guppy 1867 turret shell
Turritella (Broderiptella) aff. mimetes Brown and Pilsbry 1911 turret shell | |
Eulima "sp. A" Risso 1826 snail
Niso grandis snail | |
Rictaxis sp. Dall 1871 snail | |
Turbonilla "sp. A", Turbonilla "sp. B", Turbonilla "sp. D", Pyramidella (Callolongchaeus) aff. jamaicensis, Pyramidella (Callolongchaeus) cf. daidemata, Eulimella (Ebalina) mitis
Turbonilla "sp. A" Risso 1826 snail
Turbonilla "sp. B" Risso 1826 snail
Turbonilla "sp. D" Risso 1826 snail | |
Architectonica (Pseudotorinia) melajoensis Jung 1969 snail | |
Scaphopoda | |
Dentalium (Dentalium) divulgatum tusk shell | |
Bivalvia | |
"Nuculana (Saccella) ludificans" = Saccella, Calorhadia (Calorhadia) solivaga, "Adrana perprotracta" = Adrana newcombi
"Nuculana (Saccella) ludificans" = Saccella pointed nut clam
Calorhadia (Calorhadia) solivaga pointed nut clam
"Adrana perprotracta" = Adrana newcombi Angas 1878 pointed nut clam | |
Atrina sp. Gray 1842 oyster | |
"Aequipecten (Plagioctenium) cf. maturensis" = Argopecten
"Aequipecten (Plagioctenium) cf. maturensis" = Argopecten calico scallop | |
Anomia simplex d'Orbigny 1845 jingle | |
"Anadara (Scapharca) placata" = Scapharca, Anadara (Anadara) inaequilateralis
"Anadara (Scapharca) placata" = Scapharca clam
Anadara (Anadara) inaequilateralis Maury 1917 ark | |
Arcopsis adamsi Dall 1886 clam
Noetia (Noetia) sheldoniana Maury 1912 clam
Noetia (Eontia) centrota Guppy 1867 clam | |
Solen (Solen) sp. Linnaeus 1758 clam | |
Pitar (Lamelliconcha) circinatus venus clam
Dosinia (Dosinia) sp. Scopoli 1777 venus clam
"Chione (Lirophora) caroniana" = Lirophora venus clam | |
"Eurytellina melajoensis" = Tellina (Eurytellina), "? Eurytellina oligoscissulata" = Tellina (Eurytellina), "Moerella (Moerella) elinguis" = Tellina (Moerella), Tellidora sp., Merisca trinidadensis
"Eurytellina melajoensis" = Tellina (Eurytellina) tellin clam
"? Eurytellina oligoscissulata" = Tellina (Eurytellina) tellin clam
"Moerella (Moerella) elinguis" = Tellina (Moerella) tellin clam
Tellidora sp. Morch 1856 tellin clam
Merisca trinidadensis tellin clam | |
Juliacorbula aequivalvis, Caryocorbula (Caryocorbula) helenae, Caryocorbula (Caryocorbula) sp., "Notocorbula sp." = Corbula (Notocorbula), Tenuicorbula melajoensis
Juliacorbula aequivalvis Philippi 1836 clam
Caryocorbula (Caryocorbula) sp. Gardner 1926 clam
"Notocorbula sp." = Corbula (Notocorbula) Iredale 1930 clam
Tenuicorbula melajoensis Jung 1969 clam | |
Crassinella guppyi Dall 1896 clam |