Telembi [Angostura Fm] (Miocene of Ecuador)
Where: Esmeraldas, Ecuador (0.8° N, 78.9° W: paleocoordinates 0.4° N, 77.3° 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
• Near-shore clastic sediments deposited along the inner shelf zone at depths of 100 fathoms or less.
• The Angostura formation is comprised primarily of coarse wsandstones and beds of conglomerates, about 150 meters in thickness. The formation is resistant to erosion and is largely barren, but at a few places there are lenses or interbeds filled with finely preserved fossils.
Size class: macrofossils
Collection methods: Faunal list observed from the fossils found in a fossiliferous lense interbedded with sandstones and conglomerates.
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 60662: authorized by Arnold Miller, entered by Kate Bulinski on 19.05.2006, edited by Austin Hendy
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Gastropoda | |
Turritella (Bactrospira) acosta, Turritella prenuncia, Turritella gatunensis, Turritella (Broderiptella) bifastigata
Turritella prenuncia Spieker 1922 turret shell
Turritella gatunensis Conrad 1857 turret shell
Turritella (Broderiptella) bifastigata Nelson 1870 turret shell | |
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Olivella (Niteoliva) marksi Olsson 1956 olive snail | |
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Eupleura thompsoni Woodring 1959 murex snail | |
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Gemophos cayapus, Cymatophos pilsbryi, Perunassa ? ursa, Northia (Northia) ecuadoriana, Strombinophos equadorianus, Strombinophos telembus, "Northia (Nicema) noctua" = Nicema, Hindsia dalli
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Melongena consors Sowerby 1850 snail | |
Strombina (Sincolo) harbisoniae, "Strombina (Strombina) striatocostata" = Strombina (Strombina) colinensis, "Strombina (Strombina) pigea" = Sincola (Dorsina) pigea, Strombinella druidwilsoni
"Strombina (Strombina) striatocostata" = Strombina (Strombina) colinensis Hodson 1931 snail | |
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"Cancellaria (Hertleinia) angosturana" = Hertleinia angosturana, Cancellaria (Massula) jadisi, Cancellaria (Euclia) fragosa, "Cancellaria (Euclia) maldonadoi" = Euclia maldonadoi, Cancellaria (Cancellaria) metuloides, Cancellaria (Cancellaria) xenia, "Cancellaria (Pyruclia) telemba" = Pyruclia telemba, "Cancellaria (Pyruclia) pycta" = Pyruclia pycta
"Cancellaria (Hertleinia) angosturana" = Hertleinia angosturana Marks 1949 snail | |
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"Agladrillia lelandi" = Clathrodrillia lelandi
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Hastula woodringi, Strioterebrum telembiense, Strioterebrum indocayapum, Strioterebrum gatunensis, "Terebra (Myurellina) subsulcifera" = Terebra (Oreoterebra) subsulcifera, "Terebra (Paraterebra) cf. robusta" = Terebra (Panaterebra) robusta
Strioterebrum gatunensis Toula 1908 auger snail
"Terebra (Myurellina) subsulcifera" = Terebra (Oreoterebra) subsulcifera Brown and Pilsbry 1911 auger snail
"Terebra (Paraterebra) cf. robusta" = Terebra (Panaterebra) robusta Hinds 1844 auger snail | |
"Cypraea (Pseudozonaria) telembiensis" = Pseudozonaria telembiensis
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Architectonica (Pseudotorinia) eurybis, "Architectonica (Architectonica) nobilis" = Architectonica nobilis
"Architectonica (Architectonica) nobilis" = Architectonica nobilis Röding 1798 sundial subspecies nobilis
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| Bivalvia | |
"Nuculana (Saccella) fabalis" = Saccella fabalis
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"Chione (Lirophora) tembla" = Lirophora (Lirophora) falconensis, Lamelliconcha thompsoni
"Chione (Lirophora) tembla" = Lirophora (Lirophora) falconensis Hodson et al. 1927 venus clam new species
Lamelliconcha thompsoni venus clam | |
"Alveinus abundans" = Alveinus rotundus
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Pseudochama sp. Odhner 1917 jewel box | |
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Trigoniocardia (Trigoniocardia) hannai Olsson 1932 cockle | |
"Semele cf. costaricensis" = Semele laevis costaricensis, Ervilia meridionalis
"Semele cf. costaricensis" = Semele laevis costaricensis Olsson 1922 clam | |
"Tellinidella sp." = Tellina (Tellinidella), "Eurytellina (Eurytellina) cayapa" = Tellina (Eurytellina)
"Tellinidella sp." = Tellina (Tellinidella) tellin clam | |
Anadara (Cunearca) telemba, "Lunarca cueva" = Anadara (Lunarca)
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