Zone H - Canoa Formation: Piacenzian, Ecuador

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Nuculida - Nuculidae
Nucula sp. Lamarck 1799
Nucula exigua Sowerby 1833
recombined as Nucula (Lamellinucula) exigua
Nucula declivis Hinds 1843
recombined as Nucula (Nucula) declivis
Bivalvia - Nuculanida - Nuculanidae
Nuculana gibbosa
Nuculana eburnea (Sowerby 1833)
recombined as Saccella eburnea
Nuculana elenensis (Sowerby I 1833)
recombined as Saccella elenensis
SUBSPECIES: N. elenensis pyriformis
Bivalvia - Pectinida - Pectinidae
Pecten ventricosus Sowerby 1842
recombined as Argopecten ventricosus
Bivalvia - Pectinida - Anomiidae
Placunanomia cumingii Broderip 1832
[entered as Placunanomia cumingi]
Anomia peruviana d'Orbigny 1846
Bivalvia - Arcida - Arcidae
Arca (Scapharca) concinna Sowerby 1833
recombined as Anadara concinna
Bivalvia - Cardiida - Cardiidae
Laevicardium elenense (Sowerby 1840)
synonym of Laevicardium substriatum
[entered as Laevicardium elenensis]
Bivalvia - Cardiida - Tellinidae
Tellina (Angulus) cf. felix
original and current combination Angulus
Tellina (Eurytellina) panamanensis
Tellina (Eurytellina) laplata Pilsbry and Olsson 1941
Macoma grandis (Hanley 1844)
recombined as Psammotreta grandis
Apolymetis excavata
Macoma (Macoploma) ecuadoriana n. sp. Pilsbry and Olsson 1941
recombined as Macoma (Psammacoma) ecuadoriana
Macoma lamproleuca (Pilsbry and Lowe 1932)
recombined as Psammacoma lamproleuca
Bivalvia - Cardiida - Veneridae
Chione (Lirophora) mariae (d'Orbigny 1846)
recombined as Lirophora mariae
Dosinia grandis Nelson 1870
synonym of Dosinia ponderosa
Pitar affinis
Bivalvia - Lucinida - Lucinidae
Lucina (Lucinisca) liana
Lucina (Lucinisca) fausta Pilsbry and Olsson 1941
Loripinus sphaerica
spelled with current rank as Anodontia (Loripinus)
Gastropoda - Heterostropha - Pyramidellidae
Turbonilla (Mormula) loripana n. sp. Pilsbry and Olsson 1941
Gastropoda - Eulimidae
Strombiformis inca
Strombiformis paria
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria (Cancellaria) decussata
Cancellaria (Cancellaria) obesa (Sowerby 1832)
SUBSPECIES: C. (C.). obesa schucherti
Cancellaria (Cancellaria) jijipana n. sp. Pilsbry and Olsson 1941
Cancellaria (Tribia) bahia n. sp. Pilsbry and Olsson 1941
Gastropoda - Neogastropoda - Mangeliidae
Mangelia ecuadoriana n. sp. Pilsbry and Olsson 1941
Gastropoda - Neogastropoda - Drilliidae
Clathrodrillia woodringi n. sp. Pilsbry and Olsson 1941
Elaeocyma aeolia
Gastropoda - Neogastropoda - Terebridae
Terebra (Strioterebrum) manta n. sp. Pilsbry and Olsson 1941
Gastropoda - Neogastropoda - Clathurellidae
Nannodiella meridionalis n. sp. Pilsbry and Olsson 1941
Gastropoda - Neogastropoda - Columbellidae
Strombina gibberula (Sowerby 1832)
recombined as Sincola (Dorsina) gibberula
Gastropoda - Neogastropoda - Buccinidae
Strombinophos loripanus n. sp. Pilsbry and Olsson 1941
Nassa (Perunassa) ecuadoriana n. sp. Pilsbry and Olsson 1941
Gastropoda - Neogastropoda - Nassariidae
Hindsia wheeleri n. sp. Pilsbry and Olsson 1941
recombined as Trajana (Trajana) wheeleri
Gastropoda - Neogastropoda - Olividae
Olivella gracilis (Broderip and Sowerby 1829)
Gastropoda - Neogastropoda - Marginellidae
Marginella incrassata
Marginella minor Jousseaume 1877
synonym of Volvarina taeniata
Gastropoda - Naticidae
Natica elenae Récluz 1844
Natica broderipiana Récluz 1844
Gastropoda - Tornidae
Teinostoma ecuadoriana n. sp. Pilsbry and Olsson 1941
Gastropoda - Epitoniidae
Epitonium (Spiniscala) loripanum Pilsbry and Olsson 1941
Epitonium (Ferminoscala) manabianum n. sp. Pilsbry and Olsson 1941
synonym of Scalina ferminiana
Epitonium (Ferminoscala) eleutherium n. sp. Pilsbry and Olsson 1941
synonym of Scalina brunneopicta
Gastropoda - Opisthobranchia - Cylichnidae
Acteocina puruha n. sp. Pilsbry and Olsson 1941
Scaphopoda - Dentaliida - Dentaliidae
Dentalium (Tesseracme) tesseragonum
original and current combination Tesseracme
see common names

Country:Ecuador State/province:Manabi
Coordinates: 0.2° North, 80.3° West (view map)
Paleocoordinates:0.0° North, 79.7° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Period:Neogene Epoch:Pliocene
Stage:Piacenzian 10 m.y. bin:Cenozoic 6
Key time interval:Piacenzian
Age range of interval:3.60000 - 2.58000 m.y. ago
Local section:Quebrada Mangle Local bed:69 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 H (Loripes Zone), which has a thickness of around 15 ft.
Lithology and environment
Primary lithology:shelly/skeletal,blue unlithified sandy claystone
Includes fossils?Y
Lithology description: Very fossiliferous, blue sandy clays. Many fossils.
Environment:coastal indet.
Geology comments: No environmental data reported. Presumably shallow water.
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.
Also known as:Loripes Zone
Database number:51880
Authorizer:A. Hendy, A. Miller Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2005-06-29 08:17:03 Last modified:2020-06-11 14:25:17
Access level:group members Released:2006-06-29 08:17:03
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]