Zone F - Canoa Formation: Pliocene, Ecuador

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Cidaroida - Cidaridae
Cidaris sp. Leske 1778
Thecostraca - Balanomorpha - Balanidae
Balanus sp. Da Costa 1778
Thecostraca - Balanomorpha - Coronulidae
Coronula sp. Bruguière 1792
Bivalvia - Cardiida - Veneridae
Dosinia grandis Nelson 1870
Bivalvia - Hiatellida - Hiatellidae
Bivalvia - Ostreida - Ostreidae
Ostrea megodon Hanley 1846
Bivalvia - Pectinida - Pectinidae
Pecten ventricosus Sowerby 1842
Bivalvia - Pectinida - Anomiidae
Anomia peruviana d'Orbigny 1846
Placunanomia cumingii Broderip 1832
[entered as Placunanomia cumingi]
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
see common names

Geography
Country:Ecuador State/province:Manabi
Coordinates: 0.2° North, 80.3° West (view map)
Paleocoordinates:0.5° North, 79.2° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Pliocene
10 m.y. bin: Cenozoic 6
Key time interval: Pliocene
Age range of interval: 5.333 - 2.58 m.y. ago
Stratigraphy
Formation:Canoa
Local section:Quebrada Mangle Local bed:103 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 basal Zone F (Loripes Zone), which has a thickness of around 1-2 ft.
Lithology and environment
Primary lithology:blue unlithified sandy claystone
Includes fossils?Y
Lithology description: Bluish, sandy clays, sparingly fossiliferous.
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Taxonomic list comments:Exhaustive for Mollusca; nomenclature probably outdated though accurate.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:Pecten Zone
Database number:51884
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2005-06-29 09:41:03 Last modified:2025-02-22 15:12:02
Access level:group members Released:2006-06-29 09:41:03
Creative Commons license:CC0
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]