Zone E - Canoa Formation (Pliocene of Ecuador)

Where: Manabi, Ecuador (0.2° N, 80.3° W: paleocoordinates 0.0° S, 79.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Canoa Formation, Pliocene (5.3 - 2.6 Ma)

• 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 E, which has a thickness of around 8 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; unlithified, blue, sandy claystone

• No environmental data reported. Presumably shallow water.
• Bluish, sandy clays, sparingly fossiliferous.

Size class: macrofossils

Collection methods: quarrying,

• Probably collected by current authors, though text also makes referal to faunal lists by Sheppard (1930) and a collecton of Barker.

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51881: authorized by Austin Hendy, entered by Austin Hendy on 29.06.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for Mollusca; nomenclature probably outdated though accurate.
Bivalvia
 Cardiida - Veneridae
Chione sp. von Mühlfield 1811 venus clam
Either C. (Chionopsis) or C. (Lirophora) sp.
 Arcida - Arcidae
Arca sp. Linnaeus 1758 ark
Could be A. (Scapharca), A. (Cunearca), A. (Larkinia), or A. (Argina)
 Pectinida - Pectinoidae
"Pecten ventricosus" = Argopecten ventricosus
"Pecten ventricosus" = Argopecten ventricosus Sowerby 1842 calico scallop
Gastropoda
 Sorbeoconcha - Naticidae
Polinices sp. Monfort 1810 moon snail