Where: Trinidad and Tobago (10.6° N, 61.1° W: paleocoordinates 10.5° N, 59.6° W)
• 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 60630: authorized by Austin Hendy, entered by Austin Hendy on 19.05.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Anadara (Scapharca) placata" = Scapharca
"Anadara (Scapharca) placata" = Scapharca clam | |
Crassinella guppyi Dall 1896 clam | |
Caryocorbula (Caryocorbula) sp. Gardner 1926 clam | |
"Mactra (Micromactra) cf. maracaibensis" = Mactrotoma
"Mactra (Micromactra) cf. maracaibensis" = Mactrotoma surfclam | |
"Chione (Lirophora) caroniana" = Lirophora, Pitar (Lamelliconcha) circinatus
"Chione (Lirophora) caroniana" = Lirophora venus clam
Pitar (Lamelliconcha) circinatus venus clam | |
Temnoconcha aff. brasiliana, "Moerella (Moerella) elinguis" = Tellina (Moerella), Eurytellina melajoensis
Temnoconcha aff. brasiliana tellin clam
"Moerella (Moerella) elinguis" = Tellina (Moerella) tellin clam
Eurytellina melajoensis tellin clam | |
"Lucina (Lucinisca) roigi" = Lucinisca
"Lucina (Lucinisca) roigi" = Lucinisca clam | |
"Nuculana (Saccella) ludificans" = Saccella
"Nuculana (Saccella) ludificans" = Saccella pointed nut clam | |
Gastropoda | |
Epitonium (Asperiscala) rohri wentletrap | |
Olivella (Minioliva) fundarugata, "Olivella (Dactylidia) aff. mutica" = Olivella mutica
Olivella (Minioliva) fundarugata olive snail
"Olivella (Dactylidia) aff. mutica" = Olivella mutica Say 1822 olive snail | |
"Anachis (Costoanachis) obesa" = Parvanachis obesa
"Anachis (Costoanachis) obesa" = Parvanachis obesa Adams 1845 snail | |
Gordanops baranoanus Anderson 1929 snail
Nassarius (Uzita) trinitatensis Jung 1969 snail | |
Eupleura lehneri Jung 1969 murex snail | |
Agladrillia ? lassula snail | |
Glyphostoma sculptile snail | |
Strioterebrum aff. laevifasciola Maury 1917 auger snail | |
Niso grandis snail | |
"Natica (Naticarius) canrena" = Naticarius canrena, Polinices stanislasmeunieri
"Natica (Naticarius) canrena" = Naticarius canrena Linnaeus 1758 moon snail
Polinices stanislasmeunieri Maury 1917 moon snail | |
Calyptraea centralis Conrad 1841 slipper shell | |
Cyclostremiscus (Ponocyclus) pentagonus Gabb 1873 snail | |
Turritella (Broderiptella) aff. mimetes Brown and Pilsbry 1911 turret shell
Turritella (Broderiptella) planigyrata Guppy 1867 turret shell | |
Turbonilla "sp. D" Risso 1826 snail
Turbonilla "sp. B" Risso 1826 snail | |
"Calliostoma olssoni" = Calliostoma (Elmerlinia) olssoni
"Calliostoma olssoni" = Calliostoma (Elmerlinia) olssoni Maury 1925 top snail | |
Scaphopoda | |
Dentalium (Dentalium) divulgatum tusk shell |