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. Collection is derived from the basal limestone
• bed-level stratigraphic resolution
Environment/lithology: shallow subtidal; poorly lithified, shelly/skeletal, conglomeratic limestone
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 60637: authorized by Austin Hendy, entered by Austin Hendy on 19.05.2006
Creative Commons license: CC0 (CC0)
Taxonomic list
Gastropoda | |
Bivalvia | |
Anomia simplex d'Orbigny 1845 jingle | |
"Aequipecten (Plagioctenium) demiurgus" = Argopecten demiurgus, Pecten (Pecten) archon
"Aequipecten (Plagioctenium) demiurgus" = Argopecten demiurgus Dall 1898 calico scallop
Pecten (Pecten) archon scallop | |
Anadara (Anadara) inaequilateralis, "Anadara (Scapharca) placata" = Scapharca
Anadara (Anadara) inaequilateralis Maury 1917 ark
"Anadara (Scapharca) placata" = Scapharca clam | |
"Eucrassatella trinitaria" = Eucrassatella (Hybolophus) trinitaria
"Eucrassatella trinitaria" = Eucrassatella (Hybolophus) trinitaria Maury 1925 clam | |
"Dosinia (Dosinia) grandis" = Dosinia ponderosa, "Chione (Lirophora) caroniana" = Lirophora, Macrocallista maculata, Pleiorytis caroniana
"Dosinia (Dosinia) grandis" = Dosinia ponderosa Gray 1838 ponderous dosinia
"Chione (Lirophora) caroniana" = Lirophora venus clam
Macrocallista maculata Linnaeus 1758 venus clam
Pleiorytis caroniana Maury 1925 venus clam | |
"Apolymetis trinitaria" = Florimetis trinitaria, Macoma (Psammacoma) "sp. A", "Eurytellina melajoensis" = Tellina (Eurytellina)
"Apolymetis trinitaria" = Florimetis trinitaria Dall 1900 tellin clam
Macoma (Psammacoma) "sp. A" Dall 1900 tellin clam
"Eurytellina melajoensis" = Tellina (Eurytellina) tellin clam | |
Trigoniocardia (Trigoniocardia) maturensis, "Trigoniocardia (Trigoniocardia) melajoensis" = Trigoniocardia (Goniacardia) melajoensis
"Trigoniocardia (Trigoniocardia) melajoensis" = Trigoniocardia (Goniacardia) melajoensis Jung 1969 cockle | |
Caryocorbula (Caryocorbula) helanae, "Notocorbula islatrinitatis" = Varicorbula islatrinitatis
"Notocorbula islatrinitatis" = Varicorbula islatrinitatis Maury 1925 clam | |
"Adrana perprotracta" = Adrana newcombi
"Adrana perprotracta" = Adrana newcombi Angas 1878 pointed nut clam | |
Scaphopoda | |
Dentalium (Dentalium) divulgatum tusk shell | |
Gastropoda | |
"Calliostoma caronianum" = Calliostoma (Calliostoma) caronianum
"Calliostoma caronianum" = Calliostoma (Calliostoma) caronianum Maury 1925 top snail | |
"Natica (Naticarius) canrena" = Naticarius canrena, "Natica (Naticarius) aff. canrena" = Naticarius canrena, Polinices stanislasmeunieri
"Natica (Naticarius) canrena" = Naticarius canrena Linnaeus 1758 moon snail
"Natica (Naticarius) aff. canrena" = Naticarius canrena Linnaeus 1758 moon snail
Polinices stanislasmeunieri Maury 1917 moon snail | |
Oliva (Oliva) couvana Maury 1925 olive snail | |
"Ancilla (Eburna) caroniana" = Eburna caroniana
"Ancilla (Eburna) caroniana" = Eburna caroniana Maury 1925 snail | |
Gordanops baranoanus Anderson 1929 snail
Nassarius (Uzita) "sp. A" Adams and Adams 1853 snail | |
Fusinus sp. Rafinesque 1815 spindle shell
Latirus (Polygona) cf. infundibulum Gmelin 1791 snail | |
"Strombina melajoensis" = Sincola (Dorsina) melajoensis, Parametaria prototyphus
"Strombina melajoensis" = Sincola (Dorsina) melajoensis Jung 1969 dove shell
Parametaria prototyphus dove shell | |
Cantharus sp. Röding 1798 true whelk
Hanetia semiglobosa true whelk | |
Volvarina "sp. A" Hinds 1844 margin shell
Prunum (Egouena) calypsonis Maury 1925 margin shell
Prunum (Egouena) springvalensis Maury 1925 margin shell | |
"Persicula (Rabicea) couviana" = Persicula propeobesa
"Persicula (Rabicea) couviana" = Persicula propeobesa Mansfield 1925 snail | |
"Thais (Stramonita) "sp. A"" = Stramonita, Chicoreus (Triplex) cornurectus, "Murex (Phyllonotus) cf. pomum" = Chicoreus (Phyllonotus) pomum, "Murex (Murex) chrysostoma" = Vokesimurex chrysostoma
"Thais (Stramonita) "sp. A"" = Stramonita Schumacher 1817 murex snail
Chicoreus (Triplex) cornurectus Guppy 1876 murex snail
"Murex (Phyllonotus) cf. pomum" = Chicoreus (Phyllonotus) pomum Gmelin 1791 murex snail
"Murex (Murex) chrysostoma" = Vokesimurex chrysostoma Sowerby 1834 murex snail | |
Strioterebrum cf. gatunense auger snail | |
Conus couvaensis, "Conus springvalensis" = Conus imitator springvalensis
Conus couvaensis Vokes 1938 cone shell
"Conus springvalensis" = Conus imitator springvalensis Mansfield 1925 cone shell | |
"Cancellaria (Euclia) montserratensis" = Euclia montserratensis, "Cancellaria (Charcolleria) sp." = Massyla, "Trigonostoma (Emmonsella) sp." = Ventrilia, Cancellaria cf. sanctifrancisci
"Cancellaria (Euclia) montserratensis" = Euclia montserratensis Maury 1925 snail
"Cancellaria (Charcolleria) sp." = Massyla Adams and Adams 1854 snail
"Trigonostoma (Emmonsella) sp." = Ventrilia Jousseaume 1887 snail | |
"Bursa (Bursa) aff. thomae" = Bursa rhodostoma
"Bursa (Bursa) aff. thomae" = Bursa rhodostoma Sowerby 1835 frog shell | |
Cymatium sp. Röding 1798 triton shell | |
Petaloconchus sculpturatus alcimus Lea 1846 worm shell | |
Balcis egregia snail | |
Crepidula plana Say 1822 slipper shell | |
Turritella (Broderiptella) plaigyrata turret shell
Springvaleia leroyi turret shell |