Villamil, Isla Isabela, Galapagos (Pleistocene of Ecuador)

Where: Ecuador (0.9° S, 91.0° W: paleocoordinates 1.0° S, 91.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pleistocene (2.6 - 0.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified sandstone

• an inner subtidal setting no deeper than 30-40 m and located near reef habitats
• whitish, coarse, organogenic sands; only rare relics of curve lamination surfaces at low angles (hummocky bedding) are present due to strong bioturbation

Size classes: macrofossils, microfossils

Collection methods: quarrying,

• siliceous sponges and abraded fragments of corals and bryozoa reported to be present, but not listed

Primary reference: L. Ragaini, G. Bianucci, G. Cantalamessa, G. Valleri, and W. Landini. 2002. Paleoecology and paleobiogeography of fossil mollusks from Isla Isabela (Galapagos, Ecuador). Journal of South American Earth Sciences 15:381-389 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 62040: authorized by Wolfgang Kiessling, entered by Uta Merkel on 11.07.2006, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Echinoidea
 Cidaroida - Cidaridae
Eucidaris sp.
Eucidaris sp. pencil urchin
Bivalvia
 Mytilida - Mytilidae
Modiolus capax
Modiolus capax Conrad 1837 mussel
 Arcida - Noetiidae
Arcopsis solida
Arcopsis solida Sowerby I 1833 clam
 Arcida - Glycymerididae
Glycymeris maculata
Glycymeris maculata Broderip 1832 clam
 Arcida - Arcidae
Barbatia rostae, Barbatia reeveana, Larkinia multicostata
Barbatia reeveana d'Orbigny 1846 clam
Larkinia multicostata Sowerby 1833 ark
 Ostreida - Ostreidae
Undulostrea megodon
Undulostrea megodon Hanley 1846 oyster
 Pectinida - Pectinoidae
Chlamys lowei
Chlamys lowei Hertlein 1932 scallop
 Pectinida - Anomiidae
Anomia peruviana
Anomia peruviana d'Orbigny 1846 jingle
 Pectinida - Limidae
"Lima pacifica" = Limaria pacifica
"Lima pacifica" = Limaria pacifica d'Orbigny 1846 file clam
 Lucinida - Lucinidae
"Pegophysema spherica" = Anodontia spherica, Divalinga eburnea, Ctena galapagana
"Pegophysema spherica" = Anodontia spherica Dall and Ochsner 1928 clam
Divalinga eburnea Reeve 1850 clam
Ctena galapagana Dall 1901 clam
 Cardiida - Sportellidae
Basterotia quadrata, "Basterotia peninsulare" = Basterotia peninsularis
Basterotia quadrata Hinds 1843 clam
"Basterotia peninsulare" = Basterotia peninsularis Jordan 1936 clam
 Cardiida - Cardiidae
"Papyridea mantaensis" = Papyridea hiulcum, "Laevicardium elenense" = Laevicardium substriatum
"Papyridea mantaensis" = Papyridea hiulcum Reeve 1845 cockle
"Laevicardium elenense" = Laevicardium substriatum Conrad 1837 cockle
 Cardiida - Tellinidae
"Tellina reclusa" = Tellina (Merisca) reclusa, Tellina sp., "Tellina pacifica" = Tellina (Elliptotellina) pacifica, "Tellina mantaensis" = Tellina (Eurytellina) inaequistriata
"Tellina reclusa" = Tellina (Merisca) reclusa Dall 1900 tellin clam
Tellina sp. Linnaeus 1758 tellin clam
"Tellina pacifica" = Tellina (Elliptotellina) pacifica Dall 1900 tellin clam
"Tellina mantaensis" = Tellina (Eurytellina) inaequistriata Donovan 1802 tellin clam
 Cardiida - Ungulinidae
Diplodonta sp.
Diplodonta sp. Bronn 1831 clam
 Cardiida - Veneridae
Chione compta
Chione compta Broderip 1835 venus clam
Gastropoda
 Lepetellida - Fissurellidae
Diodora alta
 Epitonioidea - Epitoniidae
Epitonium minuticosta, Epitonium sp.
Epitonium sp. Bolten 1798 wentletrap
 Sorbeoconcha - Capulidae
Capulus sericeus
 Sorbeoconcha - Triviidae
"Trivia fusca" = Pusula (Pusula) fusca
"Trivia fusca" = Pusula (Pusula) fusca Sowerby 1832 snail
 Neogastropoda - Mitridae
Subcancilla cf. erythrogramma, Subcancilla sp.
Subcancilla sp. Olsson and Harbison 1953 mitre shell
 Neogastropoda - Columbellidae
Strombina lanceolata, Columbella castanea, Columbella fuscata
Strombina lanceolata Sowerby 1832 snail
 Neogastropoda - Nassariidae
Nassarius caelolineatus, Nassarius versicolor
 Neogastropoda - Olividae
Olivella sp., Olivella gracilis
Olivella sp. Swainson 1831 olive snail
Olivella gracilis Broderip and Sowerby 1829 olive snail
 Neogastropoda - Terebridae
Terebra albemarlensis, Terebra frigata
Terebra frigata auger snail
 Neogastropoda - Muricidae
Coralliophila sp.
Coralliophila sp. Adams and Adams 1853 murex snail
 Neotaenioglossa - Calyptraeidae
"Crepidula aculeata" = Bostrycapulus aculeatus
"Crepidula aculeata" = Bostrycapulus aculeatus Gmelin 1791 slipper shell
Foraminifera
 Globigerinoidea - Globigerinidae
Globigerinoides sp., Globigerina sp.
Globigerinoides sp. Cushman 1927
Globigerina sp. d'Orbigny 1826
 Rotalioidea - Elphidiidae
Elphidium sp.
Elphidium sp. Monfort 1808
Tubothalamea
 Miliolida - Hauerinidae
Quinqueloculina sp.
Quinqueloculina sp. d'Orbigny 1826
 Miliolida - Miliolidae
Spiroloculina sp.
Spiroloculina sp. d'Orbigny 1826
Globothalamea
 Rotaliida - Nonionidae
Nonion sp.
Nonion sp. Monfort 1808
 Rotaliida - Cibicididae
Cibicides sp.
Cibicides sp. Monfort 1808