PBDB Collection

Zone J - Canoa Formation (Pliocene to of Ecuador)

Also known as Cancellaria Zone

Where: Manabi, Ecuador (0.2° N, 80.3° W)

• Paleocoordinates: 0.5° N, 79.5° W (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Canoa Formation, Piacenzian to Piacenzian (3.6 - 1.8 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 J (Cancellaria Zone), which has a thickness of around 50 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; unlithified, concretionary, shelly/skeletal, blue, carbonaceous sandstone and claystone

• No environmental data reported. Presumably shallow water.

• Massive to well-bedded blue sands and clays. Some of the sands are quite carbonaceous. In the upper part the sands are quite nodular.

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 51878: authorized by Austin Hendy, entered by Austin Hendy on 29.06.2005

Creative Commons license: CC0 (CC0)

Taxonomic list

• Exhaustive for Mollusca; nomenclature probably outdated though accurate.

Show authors, comments, and common names

unclassified
-	Prophyrobaphe iostoma n. sp. Prophyrobaphe iostoma n. sp. SUBSPECIES: P. iostoma bilabrata
Bivalvia
Mytilida - Crenellidae	"Crenella ecuadoriana n. sp." = Crenella decussata "Crenella ecuadoriana n. sp." = Crenella decussata Montagu 1808 clam
Ostreida - Ostreidae	"Ostrea megodon" = Undulostrea megodon "Ostrea megodon" = Undulostrea megodon Hanley 1846 oyster
Ostreida - Pinnidae	Pinna sp. Pinna sp. Linnaeus 1758 oyster
Pectinida - Pectinoidae	"Pecten (Janira) sericeus" = Flabellipecten sericeus "Pecten (Janira) sericeus" = Flabellipecten sericeus Hinds 1844 scallop
Pectinida - Anomiidae	Placunanomia cumingii, Anomia peruviana Placunanomia cumingii Broderip 1832 scallop [entered as Placunanomia cumingi] Anomia peruviana d'Orbigny 1846 jingle
Pectinida - Plicatulidae	Plicatula dubia Plicatula dubia Hanley 1847 scallop
Arcida - Glycymerididae	"Glycymeris inaequalis" = Glycymeris (Axinactis) inaequalis, Glycymeris canoa, Glycymeris maculata "Glycymeris inaequalis" = Glycymeris (Axinactis) inaequalis Sowerby 1832 clam Glycymeris canoa Pilsbry and Olsson 1941 clam Glycymeris maculata Broderip 1832 clam
Arcida - Arcidae	"Arca (Scapharca) concinna" = Anadara concinna, Arca (Cunearca) esmeralda n. sp., "Arca (Cunearca) labiata" = Anadara perlabiata, "Arca (Larkinia) larkini" = Anadara (Larkinia), "Arca (Cunearca) nux" = Anadara nux, Arca (Scapharca) hopkinsi n. sp., Arca (Scapharca) wheeleri n. sp., Arca (Scapharca) ecuadoriana n. sp., Barbatia (Acar) gradata "Arca (Scapharca) concinna" = Anadara concinna Sowerby 1833 ark Arca (Cunearca) esmeralda n. sp. Pilsbry and Olsson 1941 ark "Arca (Cunearca) labiata" = Anadara perlabiata Grant, IV and Gale 1931 ark "Arca (Larkinia) larkini" = Anadara (Larkinia) ark "Arca (Cunearca) nux" = Anadara nux Sowerby I 1833 ark Arca (Scapharca) hopkinsi n. sp. Pilsbry and Olsson 1941 clam Arca (Scapharca) wheeleri n. sp. Pilsbry and Olsson 1941 clam Arca (Scapharca) ecuadoriana n. sp. Pilsbry and Olsson 1941 clam Barbatia (Acar) gradata Broderip and Sowerby 1829 miniature ark
Carditida - Crassatellidae	Crassinella haylocki n. sp., Crassinella pacifica, Crassinella clementia n. sp. Crassinella haylocki n. sp. Pilsbry and Olsson 1941 clam Crassinella pacifica Adams 1852 clam Crassinella clementia n. sp. Pilsbry and Olsson 1941 clam
Lucinida - Lucinidae	Lucina (Parvilucina) callosana n. sp., "Divaricella lucasana" = Divalinga eburnea, "Lucina (Bellucina) cancellaris" = Radiolucina cancellaris, Lucina (Lucinisca) fausta n. sp. Lucina (Parvilucina) callosana n. sp. Pilsbry and Olsson 1941 clam "Divaricella lucasana" = Divalinga eburnea Reeve 1850 clam "Lucina (Bellucina) cancellaris" = Radiolucina cancellaris Philippi 1846 clam Lucina (Lucinisca) fausta n. sp. Pilsbry and Olsson 1941 clam
Pholadida - Corbulidae	"Corbula biradiata" = Caryocorbula biradiata, "Corbula nasuta" = Caryocorbula nasuta, Corbula ecuabula n. sp. "Corbula biradiata" = Caryocorbula biradiata Sowerby 1833 clam "Corbula nasuta" = Caryocorbula nasuta Sowerby 1833 clam Corbula ecuabula n. sp. Pilsbry and Olsson 1941 clam
Cardiida - Semelidae	Semele jaramija n. sp. Semele jaramija n. sp. Pilsbry and Olsson 1941 clam
Cardiida - Tellinidae	"Macoma (Cymatoica) sp." = Cymatoica, Tellina (Eurytellina) laplata n. sp., Tellina (Macaliopsis) lyrica "Macoma (Cymatoica) sp." = Cymatoica Dall 1889 tellin clam Tellina (Eurytellina) laplata n. sp. Pilsbry and Olsson 1941 tellin clam Tellina (Macaliopsis) lyrica tellin clam
Cardiida - Cardiidae	"Cardium (Trigoniocardia) obovale" = Apiocardia obovale "Cardium (Trigoniocardia) obovale" = Apiocardia obovale Sowerby 1833 cockle
Cardiida - Ungulinidae	Diplodonta sp. Diplodonta sp. Bronn 1831 clam
Cardiida - Veneridae	"Macrocallista squalida" = Megapitaria squalida, "Dosinia grandis" = Dosinia ponderosa, "Chione (Chionopsis) taftoni n. sp." = Chionopsis, Chione (Chionopsis) manabia n. sp., "Chione (Lirophora) kelletti" = Lirophora, "Chione (Lirophora) mariae" = Lirophora mariae, Cyclinella subquadrata "Macrocallista squalida" = Megapitaria squalida Sowerby 1833 venus clam "Dosinia grandis" = Dosinia ponderosa Gray 1838 venus clam "Chione (Chionopsis) taftoni n. sp." = Chionopsis venus clam Chione (Chionopsis) manabia n. sp. Pilsbry and Olsson 1941 venus clam "Chione (Lirophora) kelletti" = Lirophora venus clam "Chione (Lirophora) mariae" = Lirophora mariae d'Orbigny 1846 venus clam Cyclinella subquadrata Hanley 1844 venus clam
Cardiida - Montacutidae	Mysella sp. Mysella sp. Angas 1877 clam
Cardiida - Kelliidae	Bornia "sp. A", Bornia "sp. B" Bornia "sp. A" clam Bornia "sp. B" clam
Hiatellida - Hiatellidae	"Panopaea cf. coquimbensis" = Panopea abbreviata "Panopaea cf. coquimbensis" = Panopea abbreviata Valenciennes 1839 clam
Nuculida - Nuculidae	"Nucula declivis" = Nucula (Nucula) declivis, "Nucula exigua" = Nucula (Lamellinucula) exigua "Nucula declivis" = Nucula (Nucula) declivis Hinds 1843 nut clam "Nucula exigua" = Nucula (Lamellinucula) exigua Sowerby 1833 nut clam
Nuculanida - Nuculanidae	Nuculana gibbosa, Nuculana elensis Nuculana gibbosa pointed nut clam Nuculana elensis pointed nut clam SUBSPECIES: N. elenensis pyriformis
Scaphopoda
Gadilida - Gadilidae	Cadulus (Polyschides) quitus n. sp., Cadulus (Gadilopsis) leptodoma n. sp. Cadulus (Polyschides) quitus n. sp. Pilsbry and Olsson 1941 tusk shell Cadulus (Gadilopsis) leptodoma n. sp. Pilsbry and Olsson 1941 tusk shell
Gastropoda
Trochoidea - Skeneidae	Systellomphalus peronatus n. sp. Systellomphalus peronatus n. sp. Pilsbry and Olsson 1941 snail
Trochoidea - Trochidae	Calliostoma nonurum n. sp. Calliostoma nonurum n. sp. Pilsbry and Olsson 1941 top snail
Opisthobranchiata - Cylichnidae	Acteocina puruha n. sp. Acteocina puruha n. sp. Pilsbry and Olsson 1941 barrel-bubble
Vanikoroidea - Eulimidae	Niso imbricata Niso imbricata snail
Sorbeoconcha - Rissoidae	Onoba fortis n. sp. Onoba fortis n. sp. Pilsbry and Olsson 1941 snail
Sorbeoconcha - Naticidae	Natica elenae, Natica broderipiana, "Natica unifasciata" = Natica (Naticarius) unifasciata, Polinices sp., Polinices panamensis Natica elenae Récluz 1844 moon snail Natica broderipiana Récluz 1844 moon snail "Natica unifasciata" = Natica (Naticarius) unifasciata Lamarck 1822 moon snail Polinices sp. Monfort 1810 moon snail Polinices panamensis moon snail
Sorbeoconcha - Caecidae	Caecum (Quadrulata) campe n. sp. Caecum (Quadrulata) campe n. sp. Pilsbry and Olsson 1941 snail
Sorbeoconcha - Vitrinellidae	Circulus occidentalis n. sp. Circulus occidentalis n. sp. Pilsbry and Olsson 1941 snail
Sorbeoconcha - Tornidae	Pseudorotella lens n. sp. Pseudorotella lens n. sp. Pilsbry and Olsson 1941 snail
Sorbeoconcha - Ficidae	Ficus ventricosus Ficus ventricosus fig shell
Sorbeoconcha - Ranellidae	"Cymatium wiegmanni" = Monoplex wiegmanni "Cymatium wiegmanni" = Monoplex wiegmanni Anton 1839 triton shell
Sorbeoconcha - Bursidae	"Bursa ventricosa" = Crossata ventricosa "Bursa ventricosa" = Crossata ventricosa Broderip 1833 frog shell
Sorbeoconcha - Personidae	"Distorsio decussatus" = Distorsio decussata "Distorsio decussatus" = Distorsio decussata Valenciennes 1832 snail
Sorbeoconcha - Cassidae	Semicassis centiquadratus Semicassis centiquadratus snail
Neogastropoda - Marginellidae	Marginella incrassata, Marginella sp., "Marginella minor" = Volvarina taeniata Marginella incrassata margin shell Marginella sp. Lamarck 1799 margin shell "Marginella minor" = Volvarina taeniata Sowerby 1846 margin shell
Neogastropoda - Muricidae	Eupleura muriciformis Eupleura muriciformis Broderip 1833 murex snail
Neogastropoda - Cancellariidae	Trigonostoma ecuadoriana n. sp., Cancellaria (Cancellaria) urceolata, Cancellaria (Cancellaria) decussata, Cancellaria (Cancellaria) cominella n. sp., Cancellaria (Cancellaria) dolioides n. sp., Cancellaria (Cancellaria) jijipana n. sp., Cancellaria (Cancellaria) obesa, "Cancellaria (Narona) pajana n. sp." = Narona pajana, "Cancellaria (Euclia) crassidiformis n. sp." = Euclia, "Cancellaria (Euclia) cremata" = Euclia, Cancellaria (Euclia) pacifica n. sp. Trigonostoma ecuadoriana n. sp. snail Cancellaria (Cancellaria) urceolata Hinds 1843 snail Cancellaria (Cancellaria) decussata snail Cancellaria (Cancellaria) cominella n. sp. Pilsbry and Olsson 1941 snail Cancellaria (Cancellaria) dolioides n. sp. Pilsbry and Olsson 1941 snail Cancellaria (Cancellaria) jijipana n. sp. Pilsbry and Olsson 1941 snail Cancellaria (Cancellaria) obesa Sowerby 1832 snail SUBSPECIES: C. (C.) obesa schucherti "Cancellaria (Narona) pajana n. sp." = Narona pajana Pilsbry and Olsson 1941 snail "Cancellaria (Euclia) crassidiformis n. sp." = Euclia snail "Cancellaria (Euclia) cremata" = Euclia snail Cancellaria (Euclia) pacifica n. sp. Anderson 1905 snail
Neogastropoda - Conidae	Conus moilifer, Conus cacuminatus, Conus tornatus Conus moilifer cone shell Conus cacuminatus Spieker 1922 cone shell Conus tornatus Broderip 1833 cone shell
Neogastropoda - Terebridae	"Terebra (Strioterebrum) armillata" = Terebra (Strioterebrum) specillata armillata, "Terebra (Strioterebrum) nelsoni" = Strioterebrum nelsoni, Terebra (Strioterebrum) blanca n. sp., Terebra (Strioterebrum) loja n. sp. "Terebra (Strioterebrum) armillata" = Terebra (Strioterebrum) specillata armillata Hinds 1844 auger snail SUBSPECIES: T. (S.) armillata shephardi "Terebra (Strioterebrum) nelsoni" = Strioterebrum nelsoni Hanna and Israelsky 1925 auger snail Terebra (Strioterebrum) blanca n. sp. Pilsbry and Olsson 1941 auger snail Terebra (Strioterebrum) loja n. sp. Pilsbry and Olsson 1941 auger snail
Neogastropoda - Clathurellidae	Nannodiella sp. Nannodiella sp. Dall 1919 snail
Neogastropoda - Mangeliidae	Mangelia heptapleura n. sp., Mangelia hesperia n. sp. Mangelia heptapleura n. sp. Pilsbry and Olsson 1941 snail Mangelia hesperia n. sp. Pilsbry and Olsson 1941 snail
Neogastropoda - Drilliidae	Clathrodrillia resina, Clathrodrillia noventa n. sp. Clathrodrillia resina snail Clathrodrillia noventa n. sp. Pilsbry and Olsson 1941 snail
Neogastropoda - Mitridae	"Mitra swainsoni" = Fusimitra swainsoni, "Mitra gigantea" = Mitra (Tiara) gigantea "Mitra swainsoni" = Fusimitra swainsoni Broderip 1836 mitre shell "Mitra gigantea" = Mitra (Tiara) gigantea Reeve 1844 mitre shell SUBSPECIES: M. gigangtea polystira
Neogastropoda - Olividae	Oliva polpasta, Oliva kaleontina Oliva polpasta olive snail Oliva kaleontina olive snail
Neogastropoda - Fasciolariidae	Fusinus panamensis Fusinus panamensis snail
Neogastropoda - Buccinidae	Hanetia fusiformis, Hanetia boggsi n. sp., Nassa (Perunassa) ecuadoriana, Nassa pacis, Nassa cara, Nassa palta Hanetia fusiformis true whelk Hanetia boggsi n. sp. Pilsbry and Olsson 1941 true whelk Nassa (Perunassa) ecuadoriana Pilsbry and Olsson 1941 true whelk Nassa pacis Pilsbry and Olsson 1941 true whelk Nassa cara Pilsbry and Olsson 1941 true whelk Nassa palta Pilsbry and Olsson 1941 true whelk
Neogastropoda - Nassariidae	"Nassa (Arcularia) puntablancoensis" = Nassarius (Arcularia) "Nassa (Arcularia) puntablancoensis" = Nassarius (Arcularia) snail
Neogastropoda - Columbellidae	Aesopus polylophus n. sp., Aesopus (Glyptaesopus) perornatus n. sp., "Strombina gibberula" = Sincola (Dorsina) gibberula, Strombina lanceolata Aesopus polylophus n. sp. Pilsbry and Olsson 1941 dovesnail Aesopus (Glyptaesopus) perornatus n. sp. Pilsbry and Olsson 1941 dovesnail "Strombina gibberula" = Sincola (Dorsina) gibberula Sowerby 1832 snail Strombina lanceolata Sowerby 1832 snail
Cerithioidea - Turritellidae	"Turritella goniostoma" = Turritella gonostoma, "Turritella broderipiana" = Turritella (Broderiptella) broderipiana "Turritella goniostoma" = Turritella gonostoma Valenciennes 1832 turret shell "Turritella broderipiana" = Turritella (Broderiptella) broderipiana d'Orbigny 1840 turret shell
Neotaenioglossa - Calyptraeidae	Crucibulum (Crucibulum) hispidium, Crucibulum alloglyptum n. sp., Crucibulum (Dispotaea) inerme, "Crucibulum (Dispotaea) imbricatum" = Crucibulum (Dispotaea) imbricata, Crepidula sp. Crucibulum (Crucibulum) hispidium slipper shell [entered as Crucibulum (Crucibulum) hispidum] Crucibulum alloglyptum n. sp. Pilsbry and Olsson 1941 slipper shell Crucibulum (Dispotaea) inerme slipper shell "Crucibulum (Dispotaea) imbricatum" = Crucibulum (Dispotaea) imbricata Sowerby 1824 slipper shell Crepidula sp. Lamarck 1799 slipper shell
Epitonioidea - Epitoniidae	"Epitonium (Ferminoscala) manabianum n. sp." = Scalina ferminiana "Epitonium (Ferminoscala) manabianum n. sp." = Scalina ferminiana Dall 1908 wentletrap
Heterostropha - Architectonicidae	Architectonica nobilis Architectonica nobilis Röding 1798 sundial