Where: Esmeraldas, Ecuador (1.1° N, 79.0° W: paleocoordinates 0.7° N, 77.4° W)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Angostura Formation (Santiago Group), Late/Upper Miocene (11.6 - 5.3 Ma)
• Lowest of the Santiago Miocene section, lying transgressivlely unconformably on the Rio de Oro and Playa Rica shales. 150 meters in thickness
• formation-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, coarse-grained sandstone and conglomerate
Size class: macrofossils
Collection methods: Faunal list observed from the fossils found in the roof of a small cave.
Primary reference: A. A. Olsson. 1964. Neogene Mollusks From Northwestern Ecuador [A. Miller/K. Bulinski]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 60640: authorized by Arnold Miller, entered by Kate Bulinski on 19.05.2006, edited by Austin Hendy
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
"Architectonica (Architectonica) nobilis" = Architectonica nobilis
"Architectonica (Architectonica) nobilis" = Architectonica nobilis Röding 1798 sundial subspecies nobilis
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"Acteocina cf. subbullata" = Acteocina bullata
"Acteocina cf. subbullata" = Acteocina bullata Kiener 1834 barrel-bubble | |
Turritella gatunensis, Turritella (Broderiptella) mimetes, Turritella (Bactrospira) altilira, Turritella matarucana, Turritella prenuncia
Turritella gatunensis Conrad 1857 turret shell
Turritella (Broderiptella) mimetes Brown and Pilsbry 1911 turret shell
Turritella matarucana Hodson 1926 turret shell
Turritella prenuncia Spieker 1922 turret shell | |
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Hanetia (Solenosteira) dalli Brown and Pilsbry 1911 true whelk | |
"Cancellaria (Hertleinia) angosturana" = Hertleinia angosturana, "Cancellaria (Pyruclia) telemba" = Pyruclia telemba, "Cancellaria (Euclia) maldonadoi" = Euclia maldonadoi
"Cancellaria (Hertleinia) angosturana" = Hertleinia angosturana Marks 1949 snail
"Cancellaria (Pyruclia) telemba" = Pyruclia telemba Olsson 1964 snail | |
Strioterebrum oresignus, Strioterebrum telembiense, Strioterebrum gatunensis, "Terebra (Paraterebra) cembra" = Terebra (Oreoterebra) subsulcifera cembra
Strioterebrum gatunensis Toula 1908 auger snail
"Terebra (Paraterebra) cembra" = Terebra (Oreoterebra) subsulcifera cembra Olsson 1964 auger snail new species
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Olivella (Niteoliva) marksi Olsson 1956 olive snail
Oliva (Ispidula) cueva olive snail | |
"Murex (Murex) polynematicus" = Vokesimurex polynematicus
"Murex (Murex) polynematicus" = Vokesimurex polynematicus Brown and Pilsbry 1911 murex snail | |
Strombus sp. Linnaeus 1758 conch | |
Muracypraea woodringi Landau and Groves 2011 cowry | |
"Distorsio (Rhysema) gatunensis" = Distorsio decussata
"Distorsio (Rhysema) gatunensis" = Distorsio decussata Valenciennes 1832 snail | |
Petaloconchus sculpturatus Lea 1846 worm shell | |
Bivalvia | |
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"Crenella ecuadoriana" = Crenella decussata
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Calloarca (Taeniarca) cachla, "Lunarca cueva" = Anadara (Lunarca), Anadara (Cunearca) boggsi, Anadara (Cunearca) hindsi
Anadara (Cunearca) hindsi Olsson 1922 ark | |
"Dinocardium (Exocardium) ecuadorialis" = Dinocardium ecuadoriale, "Trigoniocardia (Americardia) stewarti" = Americardia, Trigoniocardia (Trigoniocardia) hannai, "Trachycardium (Trachycardium) dominicense" = Trachycardium (Dallocardia) dominicense
"Dinocardium (Exocardium) ecuadorialis" = Dinocardium ecuadoriale Olsson 1932 cockle
Trigoniocardia (Trigoniocardia) hannai Olsson 1932 cockle
"Trachycardium (Trachycardium) dominicense" = Trachycardium (Dallocardia) dominicense Gabb 1873 cockle | |
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"Alveinus abundans" = Alveinus rotundus
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"Chione (Panchione) mactropsis" = Lirophora (Panchione) mactropsis
"Chione (Panchione) mactropsis" = Lirophora (Panchione) mactropsis Conrad 1855 venus clam | |
"Caryocorbula (Caryocorbula) prenasuta" = Caryocorbula prenasuta, "Caryocorbula (Hexacoraula) hexacyma" = Hexacorbula hexacyma
"Caryocorbula (Hexacoraula) hexacyma" = Hexacorbula hexacyma Brown and Pilsbry 1913 clam | |
Divaricella comis, Lucina (Lepilucina) gratis, Lucina (Lucinisca) arrogans, "Lucina (Callucina) quincula" = Callucina
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Crassinella sp. Guppy 1874 clam |