Zone I - Canoa Formation: Gelasian, Ecuador
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Tellina (Macaliopsis) crystallina
Spengler 1798
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium (Tesseracme) tesseragonum
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original and current combination Tesseracme | ||||||||||
Gastropoda
- Naticidae
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Polinices sp.
Monfort 1810
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Polinices panamensis
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Natica broderipiana
Récluz 1844
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Gastropoda
- Neogastropoda
- Olividae
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Oliva kaleontina
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Gastropoda
- Neogastropoda
- Cancellariidae
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Cancellaria (Olivia) cumingiana
(Petit de la Saussaye 1844)
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recombined as Massyla cumingiana | ||||||||||
Gastropoda
- Neogastropoda
- Buccinidae
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Nassa (Perunassa) ecuadorana n. sp.
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original and current combination Perunassa | ||||||||||
Gastropoda
- Neogastropoda
- Columbellidae
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Strombina lanceolata
(Sowerby 1832)
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Strombina gibberula
(Sowerby 1832)
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recombined as Sincola (Dorsina) gibberula | ||||||||||
Gastropoda
- Neogastropoda
- Marginellidae
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Marginella minor
Jousseaume 1877
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synonym of Volvarina taeniata | ||||||||||
Marginella incrassata
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Gastropoda
- Neogastropoda
- Conidae
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Conus tornatus
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Gastropoda
- Campanilidae
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Cerithium stercusmuscarum
Valenciennes 1833
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recombined as Cerithium (Thericium) stercusmuscarum | ||||||||||
Gastropoda
- Heterostropha
- Pyramidellidae
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Pyramidella (Lonchaeus) elenensis
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Gastropoda
- Turbinidae
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Turbo saxosus
Wood 1828
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recombined as Turbo (Callopoma) saxosus | ||||||||||
Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana elenensis
(Sowerby I 1833)
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recombined as Saccella elenensis | ||||||||||
SUBSPECIES: N. elenensis pyriformis | ||||||||||
Nuculana eburnea
(Sowerby 1833)
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recombined as Saccella eburnea | ||||||||||
Nuculana gibbosa
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Bivalvia
- Nuculida
- Nuculidae
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Nucula declivis
Hinds 1843
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recombined as Nucula (Nucula) declivis | ||||||||||
Bivalvia
- Hiatellida
- Hiatellidae
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Panopaea cf. coquimbensis
d'Orbigny 1842
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synonym of Panopea abbreviata | ||||||||||
Bivalvia
- Cardiida
- Veneridae
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Pitar affinis
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Chione (Lirophora) mariae
(d'Orbigny 1846)
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recombined as Lirophora mariae | ||||||||||
Dosinia grandis
Nelson 1870
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synonym of Dosinia ponderosa | ||||||||||
Bivalvia
- Cardiida
- Mactridae
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Mactra (Mactrella) alata
(Spengler 1802)
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recombined as Mactrellona alata | ||||||||||
Bivalvia
- Cardiida
- Solecurtidae
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Tagelus (Mesopleura) peruvianus n. sp.
Pilsbry and Olsson 1941
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recombined as Tagelus peruvianus | ||||||||||
Bivalvia
- Cardiida
- Tellinidae
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Macoma (Macoploma) ecuadoriana n. sp.
Pilsbry and Olsson 1941
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recombined as Macoma (Psammacoma) ecuadoriana | ||||||||||
Macoma lamproleuca
(Pilsbry and Lowe 1932)
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recombined as Psammacoma lamproleuca | ||||||||||
Tellina (Angulus) cf. felix
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original and current combination Angulus | ||||||||||
Macoma grandis
(Hanley 1844)
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recombined as Psammotreta grandis | ||||||||||
Tellina (Eurytellina) ecuadoriana n. sp.
Pilsbry and Olsson 1941
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synonym of Tellina (Eurytellina) regia | ||||||||||
Tellina (Eurytellina) laplata n. sp.
Pilsbry and Olsson 1941
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Bivalvia
- Cardiida
- Cardiidae
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Laevicardium elenense
(Sowerby 1840)
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synonym of Laevicardium substriatum | ||||||||||
[entered as Laevicardium elenensis] | ||||||||||
Cardium (Trigoniocardia) graniferum
Broderip and Sowerby 1829
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recombined as Trigoniocardia graniferum | ||||||||||
Cardium (Trigoniocardia) obovale
Sowerby 1833
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recombined as Apiocardia obovale | ||||||||||
Bivalvia
- Pectinida
- Pectinidae
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Pecten ventricosus
Sowerby 1842
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recombined as Argopecten ventricosus | ||||||||||
Pecten (Janira) sericeus
Hinds 1844
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recombined as Flabellipecten sericeus | ||||||||||
Bivalvia
- Pectinida
- Anomiidae
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Anomia peruviana
d'Orbigny 1846
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Bivalvia
- Arcida
- Arcidae
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Arca (Larkinia) larkini
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spelled with current rank as Anadara (Larkinia) | ||||||||||
Arca (Scapharca) concinna
Sowerby 1833
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recombined as Anadara concinna | ||||||||||
see common names |
Geography
Country: | Ecuador | State/province: | Manabi |
Coordinates: | 0.2° North, 80.3° West (view map) | ||
Paleocoordinates: | 0.1° North, 79.9° West | ||
Basis of coordinate: | based on nearby landmark | ||
Geographic resolution: | outcrop |
Time
Period: | Quaternary | Epoch: | Pleistocene |
Stage: | Gelasian | 10 m.y. bin: | Cenozoic 6 |
Key time interval: | Gelasian | ||
Age range of interval: | 2.58000 - 1.80000 m.y. ago |
Stratigraphy
Formation: | Canoa | ||||
Local section: | Quebrada Mangle | Local bed: | 56 ft | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: As exposed in the Quebrada Mangle section, the Canoa Formation has a thickness of around 125 feet, comprising Pliocene through Pleistocene marine and non-marine strata. The collection is from the Zone I (Tagelus Zone), which has a thickness of around 12 ft. |
Lithology and environment
Primary lithology: | shelly/skeletal,blue unlithified sandy claystone |
Includes fossils? | Y |
Lithology description: Very fossiliferous blue, sandy clays. | |
Environment: | coastal indet. |
Geology comments: No environmental data reported. Presumably shallow water. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | selective quarrying,field collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: Probably collected by current authors, though text also makes referal to faunal lists by Sheppard (1930) and a collecton of Barker. | |
Taxonomic list comments:Exhaustive for Mollusca; nomenclature probably outdated though accurate. |
Metadata
Also known as: | Tagelus Zone | ||
Database number: | 51879 | ||
Authorizer: | A. Hendy, A. Miller | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2005-06-29 08:13:50 | Last modified: | 2020-06-11 14:25:38 |
Access level: | group members | Released: | 2006-06-29 08:13:50 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
13814. | H. A. Pilsbry and A.A. Olsson. 1941. A Pliocene fauna from Western Ecuador. Proceedings of the Natural Sciences of Philadelphia 93:1-79 [A. Miller/A. Hendy/A. Hendy] |