Community sb facies (Punta Ballena Member): Early/Lower Pleistocene, Ecuador
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium sp.
Linnaeus 1758
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1 individual | |||||||||
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Dentalium cf. oerstedi
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4 individuals | |||||||||
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Scaphopoda
- Gadilida
- Gadilidae
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Cadulus sp.
Philippi 1844
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2 individuals | |||||||||
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Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica nobilis
Röding 1798
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8 individuals | |||||||||
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Gastropoda
- Opisthobranchia
- Cylichnidae
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Acteocina cf. tabogaensis
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6 individuals | |||||||||
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Acteocina puruha
Pilsbry and Olsson 1941
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1 individual | |||||||||
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Gastropoda
- Turritellidae
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Turritella pasada
Pilsbry and Olsson 1941
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4 individuals | |||||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula sp.
Lamarck 1799
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2 individuals | |||||||||
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Gastropoda
- Epitoniidae
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Epitonium sp.
Bolten 1798
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3 individuals | |||||||||
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Nitidiscala cf. durhamiana
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1 individual | |||||||||
| spelled with current rank as Epitonium (Nitidiscala) | ||||||||||
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Gastropoda
- Naticidae
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Polinices cf. panamensis
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7 individuals | |||||||||
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Natica elenae
Récluz 1844
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10 individuals | |||||||||
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Gastropoda
- Vitrinellidae
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Circulus sp.
Jeffreys 1842
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1 individual | |||||||||
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Circulus occidentalis
Pilsbry and Olsson 1941
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2 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius gemmulosus
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3 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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Strombinophos loripanus
Pilsbry and Olsson 1941
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5 individuals | |||||||||
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Cymatophos galerus
Pilsbry and Olsson 1941
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7 individuals | |||||||||
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Hanetia cf. ecuadorensis
Pilsbry and Olsson 1941
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8 individuals | |||||||||
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Hanetia cf. boggsi
Pilsbry and Olsson 1941
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4 individuals | |||||||||
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Hanetia cymioides
Pilsbry and Olsson 1941
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12 individuals | |||||||||
| [entered as Hanetia cymiodes] | ||||||||||
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Northia northiae
(Gray in Griffith & Pidgeon 1833)
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2 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Melongenidae
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Melongena sp.
Schumacher 1817
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1 individual | |||||||||
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Gastropoda
- Neogastropoda
- Cancellariidae
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Cancellaria solida
Sowerby 1832
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| recombined as Pyruclia solida | ||||||||||
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Cancellaria cf. picta
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4 individuals | |||||||||
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Cancellaria metuloides
Olsson 1964
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5 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Terebridae
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Strioterebrum sp.
Sacco 1891
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2 individuals | |||||||||
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Strioterebrum cf. camaronense
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1 individual | |||||||||
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Terebra elenae
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1 individual | |||||||||
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Gastropoda
- Neogastropoda
- Conidae
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Conus sp.
Linnaeus 1758
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2 individuals | |||||||||
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Conus cf. cacuminatus
Spieker 1922
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4 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Olividae
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Oliva incrassata
(Lightfoot 1786)
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31 individuals | |||||||||
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Gastropoda
- Bursidae
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Marsupina nana
(Broderip and Sowerby 1829)
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7 individuals | |||||||||
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Gastropoda
- Cassidae
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Semicassis centiquadratus
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8 individuals | |||||||||
| [entered as Semicassis centiquadrata] | ||||||||||
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Gastropoda
- Eulimidae
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Niso imbricata
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4 individuals | |||||||||
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Niso sp.
Risso 1826
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1 individual | |||||||||
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Eulima sp.
Risso 1826
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2 individuals | |||||||||
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Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana eburnea
(Sowerby 1833)
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12 individuals | |||||||||
| recombined as Saccella eburnea | ||||||||||
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Adrana sp.
Adams and Adams 1858
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2 individuals | |||||||||
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Bivalvia
- Nuculida
- Nuculidae
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Nucula exigua
Sowerby 1833
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10 individuals | |||||||||
| recombined as Nucula (Lamellinucula) exigua | ||||||||||
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Bivalvia
- Pectinida
- Pectinidae
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Pacipecten sp.
(Olsson 1961)
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8 individuals | |||||||||
| synonym of Leptopecten | ||||||||||
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Bivalvia
- Arcida
- Noetiidae
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Noetia reversa
(Sowerby 1833)
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8 individuals | |||||||||
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Bivalvia
- Arcida
- Arcidae
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Arcidae indet.
Lamarck 1809
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15 individuals | |||||||||
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Anadara obesa
(Sowerby 1833)
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25 individuals | |||||||||
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Grandiarca grandis
(Broderip and Sowerby 1829)
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8 individuals | |||||||||
| recombined as Larkinia grandis | ||||||||||
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Lunarca brevifrons
(Sowerby I 1833)
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25 individuals | |||||||||
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Anadara nux
(Sowerby I 1833)
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45 individuals | |||||||||
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Anadara aequatorialis
(d'Orbigny 1846)
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67 individuals | |||||||||
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Bivalvia
- Cardiida
- Galeommatidae
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Bornia cf. venada
Olsson 1961
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6 individuals | |||||||||
| recombined as Solecardia venada | ||||||||||
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Bivalvia
- Cardiida
- Lasaeidae
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Mysella compressa
(Dall 1913)
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7 individuals | |||||||||
| recombined as Kurtiella compressa | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Trigoniocardia obovalis
(Sowerby 1833)
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4 individuals | |||||||||
| recombined as Apiocardia obovale | ||||||||||
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Trachycardium procerum
(Sowerby 1833)
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9 individuals | |||||||||
| recombined as Mexicardia procera | ||||||||||
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Bivalvia
- Cardiida
- Solecurtidae
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Solecurtus broggii
Pilsbry and Olsson 1941
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6 individuals | |||||||||
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Tagelus sp.
Gray 1847
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12 individuals | |||||||||
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Bivalvia
- Cardiida
- Tellinidae
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Psammotreta sp.
Dall 1900
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7 individuals | |||||||||
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Macoma cf. grandis
(Hanley 1844)
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45 individuals | |||||||||
| recombined as Psammotreta grandis | ||||||||||
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Temnoconcha cognata
(Adams 1852)
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38 individuals | |||||||||
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Tellina sp.
Linnaeus 1758
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14 individuals | |||||||||
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Tellina cf. hertleini
Olssoni 1961
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30 individuals | |||||||||
| recombined as Tellina (Eurytellina) hertleini | ||||||||||
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Tellina aequizonata
Pilsbry and Olsson 1941
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49 individuals | |||||||||
| recombined as Tellina (Miratellina) aequizonata | ||||||||||
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Macoma lamproleuca
(Pilsbry and Lowe 1932)
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28 individuals | |||||||||
| recombined as Psammacoma lamproleuca | ||||||||||
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Bivalvia
- Cardiida
- Veneridae
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Chione gorgona
Pilsbry and Olsson 1941
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10 individuals | |||||||||
| synonym of Lirophora mariae | ||||||||||
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Chione sp.
von Mühlfield 1811
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6 individuals | |||||||||
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Chione jamaniana
Pilsbry and Olsson 1941
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14 individuals | |||||||||
| synonym of Chionopsis amathusia | ||||||||||
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Pitar sp.
Römer 1857
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7 individuals | |||||||||
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Pitar paytensis
(d'Orbigny 1845)
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10 individuals | |||||||||
| recombined as Lamelliconcha paytensis | ||||||||||
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Cyclinella sp.
Dall 1902
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4 individuals | |||||||||
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Bivalvia
- Cardiida
- Mactridae
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Mulinia pallida
(Broderip and Sowerby 1829)
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12 individuals | |||||||||
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Mactra (Micromactra) sp.
(Dall 1894)
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8 individuals | |||||||||
| synonym of Mactrotoma | ||||||||||
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Bivalvia
- Cardiida
- Anatinellidae
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Raeta undulata
(Gould 1851)
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247 individuals | |||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Corbula sp.
Bruguière 1789
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8 individuals | |||||||||
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Corbula tenuis
Sowerby 1833
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9 individuals | |||||||||
| recombined as Tenuicorbula tenuis | ||||||||||
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Bivalvia
- Pholadida
- Pholadidae
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Pholas chiloensis
Molina 1782
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1 individual | |||||||||
| recombined as Pholas (Thovana) chiloensis | ||||||||||
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Bivalvia
- Solenida
- Solenidae
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Solen sp.
Linnaeus 1758
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3 individuals | |||||||||
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Bivalvia
- Hiatellida
- Hiatellidae
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Panopea cf. coquimbensis
(d'Orbigny 1842)
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2 individuals | |||||||||
| synonym of Panopea abbreviata | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Ecuador | State/province: | Manabi |
| Coordinates: | 0.2° South, 80.3° West (view map) | ||
| Paleocoordinates: | 0.3° South, 79.9° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | local area |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Early/Lower Pleistocene | ||
| Age range of interval: | 2.58000 - 0.77400 m.y. ago |
Stratigraphy
| Formation: | Jama | Member: | Punta Ballena | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: While not specified, it appears that the collection is a composite of several bulk samples showing similar taphonomic characteristics and stratal position. Early Pleistocene in age (MOI stages 35-50). The Punta Ballena Member of the Jama Formation is overlain by the El Matal Member (60 m thick, fluvial) and underlain by the Punta Pasa Borracho Member (20 m thick, marine). The Punta Ballena Member is 100 m thick, mixed fluvial and marine. The age of the Jama Formation is constrained by 40Ar/39Ar date of tephra beds. | |||||
Lithology and environment
| Primary lithology: | "cross stratification",medium,coarse,shelly/skeletal unlithified sandstone | ||
| Includes fossils? | Y | ||
| Lithology description: Mud-supported, show gradational upper contact from shell-rich to shell-poor, fine-grained lithofacies | |||
| Environment: | transition zone/lower shoreface | Tectonic setting: | forearc basin |
| Glacial or sequence phase: | transgressive | ||
| Geology comments: Inner subtidal setting (20-30m) | |||
Taphonomy
| Modes of preservation: | body,original aragonite,original calcite |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Articulated whole bodies: | many |
| Disassociated major elements: | some |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | bulk,sieve,field collection |
| Collection size: | 1042 specimens |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Unknown respository for material; possibly either Universita di Camerino or Universita di Pisa, Italy; faunal list is a composite of at least two bulk collections. | |
| Taxonomic list comments:Exhaustive for Mollusca | |
Metadata
| Database number: | 48665 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2005-03-26 14:41:52 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | group members | Released: | 2006-03-26 14:41:52 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 12989. | G. Cantalamessa, C. Di Celma, and L. Ragaini. 2005. Sequence stratigraphy of the Punta Ballena Member of the Jama Formation (Early Pleistocene, Ecuador): insights from integrated sedimentologic, taphonomic and paleoecologic analysis of molluscan shell concentrations. Palaeogeography, Palaeoclimatology, Palaeoecology 216:1-25 [A. Miller/A. Hendy/A. Hendy] |