Villamil, Isla Isabela, Galapagos: Pleistocene, Ecuador
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Globothalamea
- Rotaliida
- Cibicididae
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Cibicides sp.
Monfort 1808
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Globothalamea
- Rotaliida
- Nonionidae
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Nonion sp.
Monfort 1808
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Elphidiidae
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Elphidium sp.
Monfort 1808
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Globigerinidae
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Globigerinoides sp.
Cushman 1927
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Globigerina sp.
d'Orbigny 1826
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Tubothalamea
- Miliolida
- Miliolidae
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Spiroloculina sp.
d'Orbigny 1826
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Tubothalamea
- Miliolida
- Hauerinidae
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Quinqueloculina sp.
d'Orbigny 1826
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Echinoidea
- Cidaroida
- Cidaridae
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Eucidaris sp.
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Gastropoda
- Lepetellida
- Fissurellidae
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Diodora alta
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4 individuals | ||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula aculeata
(Gmelin 1791)
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11 individuals | ||||||
| recombined as Bostrycapulus aculeatus | |||||||
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Gastropoda
- Epitoniidae
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Epitonium minuticosta
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1 individual | ||||||
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Epitonium sp.
Bolten 1798
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3 individuals | ||||||
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Gastropoda
- Capulidae
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Capulus sericeus
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1 individual | ||||||
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Gastropoda
- Neogastropoda
- Olividae
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Olivella sp.
Swainson 1831
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24 individuals | ||||||
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Olivella gracilis
(Broderip and Sowerby 1829)
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3 individuals | ||||||
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Gastropoda
- Neogastropoda
- Muricidae
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Coralliophila sp.
Adams and Adams 1853
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1 individual | ||||||
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Gastropoda
- Neogastropoda
- Mitridae
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Subcancilla cf. erythrogramma
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1 individual | ||||||
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Subcancilla sp.
Olsson and Harbison 1953
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1 individual | ||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius caelolineatus
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9 individuals | ||||||
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Nassarius versicolor
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2 individuals | ||||||
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Gastropoda
- Neogastropoda
- Columbellidae
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Strombina lanceolata
(Sowerby 1832)
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20 individuals | ||||||
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Columbella castanea
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1 individual | ||||||
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Columbella fuscata
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1 individual | ||||||
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Gastropoda
- Neogastropoda
- Terebridae
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Terebra albemarlensis
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1 individual | ||||||
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Terebra frigata
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21 individuals | ||||||
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Gastropoda
- Triviidae
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Trivia fusca
(Sowerby 1832)
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2 individuals | ||||||
| recombined as Pusula (Pusula) fusca | |||||||
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Bivalvia
- Lucinida
- Lucinidae
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Divalinga eburnea
(Reeve 1850)
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134 individuals | ||||||
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Pegophysema spherica
(Dall and Ochsner 1928)
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71 individuals | ||||||
| recombined as Anodontia spherica | |||||||
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Ctena galapagana
(Dall 1901)
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4 individuals | ||||||
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Bivalvia
- Cardiida
- Veneridae
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Chione compta
(Broderip 1835)
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1 individual | ||||||
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Bivalvia
- Cardiida
- Ungulinidae
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Diplodonta subquadrata
Carpenter 1855
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1 individual | ||||||
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= Diplodonta sp.
Bronn 1831
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Skwarko 1994 | ||||||
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Bivalvia
- Cardiida
- Cardiidae
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Laevicardium elenense
(Sowerby 1840)
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4 individuals | ||||||
| synonym of Laevicardium substriatum | |||||||
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Papyridea mantaensis
Olsson 1961
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11 individuals | ||||||
| synonym of Papyridea hiulcum | |||||||
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Bivalvia
- Cardiida
- Tellinidae
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Tellina sp.
Linnaeus 1758
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5 individuals | ||||||
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Tellina pacifica
Dall 1900
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5 individuals | ||||||
| recombined as Tellina (Elliptotellina) pacifica | |||||||
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Tellina mantaensis
Pilsbry and Olsson 1943
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2 individuals | ||||||
| synonym of Tellina (Eurytellina) inaequistriata | |||||||
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Tellina reclusa
Dall 1900
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2 individuals | ||||||
| recombined as Tellina (Merisca) reclusa | |||||||
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Bivalvia
- Cardiida
- Sportellidae
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Basterotia quadrata
(Hinds 1843)
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2 individuals | ||||||
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Basterotia peninsulare
(Jordan 1936)
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3 individuals | ||||||
| recombined as Basterotia peninsularis | |||||||
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Bivalvia
- Mytilida
- Mytilidae
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Modiolus capax
(Conrad 1837)
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1 individual | ||||||
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris maculata
(Broderip 1832)
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2 individuals | ||||||
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Bivalvia
- Arcida
- Noetiidae
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Arcopsis solida
(Sowerby I 1833)
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9 individuals | ||||||
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Bivalvia
- Arcida
- Arcidae
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Larkinia multicostata
(Sowerby 1833)
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1 individual | ||||||
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Barbatia rostae
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9 individuals | ||||||
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Barbatia reeveana
(d'Orbigny 1846)
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13 individuals | ||||||
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Bivalvia
- Ostreida
- Ostreidae
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Undulostrea megodon
(Hanley 1846)
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1 individual | ||||||
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Bivalvia
- Pectinida
- Limidae
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Lima pacifica
d'Orbigny 1846
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1 individual | ||||||
| recombined as Limaria pacifica | |||||||
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Bivalvia
- Pectinida
- Anomiidae
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Anomia peruviana
d'Orbigny 1846
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1 individual | ||||||
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Bivalvia
- Pectinida
- Pectinidae
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Chlamys lowei
(Hertlein 1932)
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1 individual | ||||||
| see common names | |||||||
Geography
| Country: | Ecuador |
| Coordinates: | 0.9° South, 91.0° West (view map) |
| Paleocoordinates: | 1.0° South, 91.5° West |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Pleistocene | ||
| Age range of interval: | 2.58000 - 0.01170 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | lithified sandstone |
| Lithology description: whitish, coarse, organogenic sands; only rare relics of curve lamination surfaces at low angles (hummocky bedding) are present due to strong bioturbation | |
| Environment: | coastal indet. |
| Geology comments: an inner subtidal setting no deeper than 30-40 m and located near reef habitats | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,microfossils |
| Preservation of anatomical detail: | good |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: siliceous sponges and abraded fragments of corals and bryozoa reported to be present, but not listed | |
Metadata
| Database number: | 62040 | ||
| Authorizer: | W. Kiessling, A. Hendy | Enterer: | U. Merkel, A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate,micropaleontology |
| Created: | 2006-07-11 00:34:10 | Last modified: | 2012-07-11 23:56:18 |
| Access level: | authorizer only | Released: | 2007-01-11 00:34:10 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 17939. | 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] |