Zone J - Canoa Formation: Piacenzian - Gelasian, Ecuador

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Prophyrobaphe iostoma n. sp.
SUBSPECIES: P. iostoma bilabrata
Bivalvia - Nuculanida - Nuculanidae
Nuculana gibbosa
Nuculana elensis
SUBSPECIES: N. elenensis pyriformis
Bivalvia - Nuculida - Nuculidae
Nucula declivis Hinds 1843
recombined as Nucula (Nucula) declivis
Nucula exigua Sowerby 1833
recombined as Nucula (Lamellinucula) exigua
Bivalvia - Carditida - Crassatellidae
Crassinella clementia n. sp. Pilsbry and Olsson 1941
Crassinella haylocki n. sp. Pilsbry and Olsson 1941
Crassinella pacifica (Adams 1852)
Bivalvia - Hiatellida - Hiatellidae
Panopaea cf. coquimbensis d'Orbigny 1842
synonym of Panopea abbreviata
Bivalvia - Pholadida - Corbulidae
Corbula nasuta Sowerby 1833
recombined as Caryocorbula nasuta
Corbula biradiata Sowerby 1833
recombined as Caryocorbula biradiata
Corbula ecuabula n. sp. Pilsbry and Olsson 1941
Bivalvia - Cardiida - Ungulinidae
Diplodonta sp. Bronn 1831
Bivalvia - Cardiida - Veneridae
Cyclinella subquadrata (Hanley 1844)
Macrocallista squalida (Sowerby 1833)
recombined as Megapitaria squalida
Chione (Chionopsis) taftoni n. sp.
original and current combination Chionopsis
Chione (Chionopsis) manabia n. sp. Pilsbry and Olsson 1941
Chione (Lirophora) kelletti
original and current combination Lirophora
Chione (Lirophora) mariae (d'Orbigny 1846)
recombined as Lirophora mariae
Dosinia grandis Nelson 1870
synonym of Dosinia ponderosa
Bivalvia - Cardiida - Kelliidae
Bornia informal sp. A
Bornia informal sp. B
Bivalvia - Cardiida - Montacutidae
Mysella sp. Angas 1877
Bivalvia - Cardiida - Tellinidae
Tellina (Macaliopsis) lyrica
Tellina (Eurytellina) laplata n. sp. Pilsbry and Olsson 1941
Macoma (Cymatoica) sp. (Dall 1889)
original and current combination Cymatoica
Bivalvia - Cardiida - Semelidae
Semele jaramija n. sp. Pilsbry and Olsson 1941
Bivalvia - Cardiida - Cardiidae
Cardium (Trigoniocardia) obovale Sowerby 1833
recombined as Apiocardia obovale
Bivalvia - Lucinida - Lucinidae
Lucina (Bellucina) cancellaris Philippi 1846
recombined as Radiolucina cancellaris
Lucina (Parvilucina) callosana n. sp. Pilsbry and Olsson 1941
Lucina (Lucinisca) fausta n. sp. Pilsbry and Olsson 1941
Divaricella lucasana Dall and Oschner 1928
synonym of Divalinga eburnea
Bivalvia - Mytilida - Crenellidae
Crenella ecuadoriana n. sp. Pilsbry and Olsson 1941
synonym of Crenella decussata
Bivalvia - Arcida - Glycymerididae
Glycymeris inaequalis (Sowerby 1832)
recombined as Glycymeris (Axinactis) inaequalis
Glycymeris canoa Pilsbry and Olsson 1941
Glycymeris maculata (Broderip 1832)
Bivalvia - Arcida - Arcidae
Barbatia (Acar) gradata (Broderip and Sowerby 1829)
Arca (Cunearca) esmeralda n. sp. Pilsbry and Olsson 1941
Arca (Scapharca) concinna Sowerby 1833
recombined as Anadara concinna
Arca (Cunearca) labiata Sowerby 1833
replaced by Anadara perlabiata
Arca (Larkinia) larkini
spelled with current rank as Anadara (Larkinia)
Arca (Cunearca) nux Sowerby I 1833
recombined as Anadara nux
Arca (Scapharca) ecuadoriana n. sp. Pilsbry and Olsson 1941
Arca (Scapharca) wheeleri n. sp. Pilsbry and Olsson 1941
Arca (Scapharca) hopkinsi n. sp. Pilsbry and Olsson 1941
Bivalvia - Pectinida - Pectinidae
Pecten (Janira) sericeus Hinds 1844
recombined as Flabellipecten sericeus
Bivalvia - Pectinida - Anomiidae
Placunanomia cumingii Broderip 1832
[entered as Placunanomia cumingi]
Anomia peruviana d'Orbigny 1846
Bivalvia - Pectinida - Plicatulidae
Plicatula dubia Hanley 1847
Bivalvia - Ostreida - Pinnidae
Pinna sp. Linnaeus 1758
Bivalvia - Ostreida - Ostreidae
Ostrea megodon Hanley 1846
recombined as Undulostrea megodon
Scaphopoda - Gadilida - Gadilidae
Cadulus (Gadilopsis) leptodoma n. sp. Pilsbry and Olsson 1941
Cadulus (Polyschides) quitus n. sp. Pilsbry and Olsson 1941
Gastropoda - Opisthobranchia - Cylichnidae
Acteocina puruha n. sp. Pilsbry and Olsson 1941
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula sp. Lamarck 1799
Crucibulum (Crucibulum) hispidium
[entered as Crucibulum (Crucibulum) hispidum]
Crucibulum alloglyptum n. sp. Pilsbry and Olsson 1941
Crucibulum (Dispotaea) inerme
Crucibulum (Dispotaea) imbricatum (Sowerby 1824)
recombined as Crucibulum (Dispotaea) imbricata
Gastropoda - Turritellidae
Turritella goniostoma (Valenciennes 1832)
original and current combination Turritella gonostoma
Turritella broderipiana d'Orbigny 1840
recombined as Turritella (Broderiptella) broderipiana
Gastropoda - Caecidae
Caecum (Quadrulata) campe n. sp. Pilsbry and Olsson 1941
Gastropoda - Tornidae
Pseudorotella lens n. sp. Pilsbry and Olsson 1941
Gastropoda - Vitrinellidae
Circulus occidentalis n. sp. Pilsbry and Olsson 1941
Gastropoda - Rissoidae
Onoba fortis n. sp. Pilsbry and Olsson 1941
Gastropoda - Personidae
Distorsio decussatus (Valenciennes 1832)
recombined as Distorsio decussata
Gastropoda - Cassidae
Semicassis centiquadratus
Gastropoda - Ranellidae
Cymatium wiegmanni (Anton 1839)
recombined as Monoplex wiegmanni
Gastropoda - Bursidae
Bursa ventricosa (Broderip 1833)
recombined as Crossata ventricosa
Gastropoda - Ficidae
Ficus ventricosus
Gastropoda - Neogastropoda - Marginellidae
Marginella minor Jousseaume 1877
synonym of Volvarina taeniata
Marginella incrassata
Marginella sp. Lamarck 1799
Gastropoda - Neogastropoda - Muricidae
Eupleura muriciformis (Broderip 1833)
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria (Cancellaria) decussata
Cancellaria (Cancellaria) urceolata
Cancellaria (Cancellaria) cominella n. sp. Pilsbry and Olsson 1941
Cancellaria (Cancellaria) obesa (Sowerby 1832)
SUBSPECIES: C. (C.) obesa schucherti
Cancellaria (Cancellaria) dolioides n. sp. Pilsbry and Olsson 1941
Cancellaria (Cancellaria) jijipana n. sp. Pilsbry and Olsson 1941
Cancellaria (Narona) pajana n. sp. Pilsbry and Olsson 1941
recombined as Narona pajana
Cancellaria (Euclia) crassidiformis n. sp.
original and current combination Euclia
Cancellaria (Euclia) cremata
original and current combination Euclia
Cancellaria (Euclia) pacifica n. sp. (Anderson 1905)
original and current combination Cancellaria pacifica
Trigonostoma ecuadoriana n. sp.
Gastropoda - Neogastropoda - Conidae
Conus moilifer
Conus tornatus
Conus cacuminatus Spieker 1922
Gastropoda - Neogastropoda - Terebridae
Terebra (Strioterebrum) armillata
original and current combination Strioterebrum
SUBSPECIES: T. (S.) armillata shephardi
Terebra (Strioterebrum) blanca n. sp. Pilsbry and Olsson 1941
Terebra (Strioterebrum) nelsoni Hanna and Israelsky 1925
recombined as Strioterebrum nelsoni
Terebra (Strioterebrum) loja n. sp. Pilsbry and Olsson 1941
Gastropoda - Neogastropoda - Drilliidae
Clathrodrillia resina
Clathrodrillia noventa n. sp. Pilsbry and Olsson 1941
Gastropoda - Neogastropoda - Clathurellidae
Nannodiella sp. (Dall 1919)
Gastropoda - Neogastropoda - Mangeliidae
Mangelia heptapleura n. sp. Pilsbry and Olsson 1941
Mangelia hesperia n. sp. Pilsbry and Olsson 1941
Gastropoda - Neogastropoda - Mitridae
Mitra gigantea Reeve 1844
recombined as Mitra (Tiara) gigantea
SUBSPECIES: M. gigangtea polystira
Mitra swainsoni Broderip 1836
recombined as Fusimitra swainsoni
Gastropoda - Neogastropoda - Olividae
Oliva polpasta
Oliva kaleontina
Gastropoda - Perissityidae
Hanetia fusiformis
Hanetia boggsi n. sp. Pilsbry and Olsson 1941
Nassa (Perunassa) ecuadoriana Pilsbry and Olsson 1941
Aesopus (Glyptaesopus) perornatus n. sp. Pilsbry and Olsson 1941
Aesopus polylophus n. sp. Pilsbry and Olsson 1941
Strombina gibberula (Sowerby 1832)
recombined as Sincola (Dorsina) gibberula
Strombina lanceolata (Sowerby 1832)
Fusinus panamensis
Nassa (Arcularia) puntablancoensis
spelled with current rank as Nassarius (Arcularia)
Gastropoda - Fasciolariidae
Niso imbricata
Polinices sp. Monfort 1810
Polinices panamensis
Natica broderipiana Récluz 1844
Natica elenae Récluz 1844
Natica unifasciata Lamarck 1822
recombined as Natica (Naticarius) unifasciata
Gastropoda - Epitoniidae
Epitonium (Ferminoscala) manabianum n. sp. Pilsbry and Olsson 1941
synonym of Scalina ferminiana
Gastropoda - Skeneidae
Systellomphalus peronatus n. sp. Pilsbry and Olsson 1941
Gastropoda - Trochidae
Calliostoma nonurum n. sp. Pilsbry and Olsson 1941
Gastropoda - Heterostropha - Architectonicidae
Architectonica nobilis Röding 1798
see common names

Geography
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
Time
10 m.y. bin:Cenozoic 6
Key time interval:Piacenzian - Gelasian
Age range of interval:3.60000 - 1.80000 m.y. ago
Stratigraphy
Formation:Canoa
Local section:Quebrada Mangle Local bed:25 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 J (Cancellaria Zone), which has a thickness of around 50 ft.
Lithology and environment
Primary lithology:planar lamination,concretionary,shelly/skeletal,blue unlithified carbonaceous sandstone
Secondary lithology:planar lamination claystone
Includes fossils?Y
Includes fossils?Y
Lithology description: Massive to well-bedded blue sands and clays. Some of the sands are quite carbonaceous. In the upper part the sands are quite nodular.
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:Cancellaria Zone
Database number:51878
Authorizer:A. Hendy, A. Miller Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2005-06-29 08:11:11 Last modified:2020-06-11 14:25:54
Access level:group members Released:2006-06-29 08:11:11
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]