Also known as USGS 5855; WG177c
Where: Colon, Panama (9.3° N, 79.9° W: paleocoordinates 9.1° N, 78.5° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: upper Gatun Member (Gatun Formation), Tortonian (11.6 - 7.2 Ma)
• LITHOSTRATIGRAPHY: From the upper part of the Gatun Formation. The Gatun Formation is subdivided into three faunal zones (proposed by Thomson and Keen, 1946): lower, middle, and upper. AGE: Late Miocene, on the basis of microfossil biostratigraphy (see Collins and Coates, 1999), refined by enterer to Tortonian based on more recent dating (Hendy, 2012). Sr dating for nearby sections indicates an age of approximately 9.5 Ma (Hendy, unpublished data).
• bed-level stratigraphic resolution
Environment/lithology: marine; poorly lithified siltstone
Size class: macrofossils
Preservation: original aragonite
Collected by D.F. MacDonald in 1911; reposited in the USNM
Collection methods: surface (float), surface (in situ),
• COLLECTOR: MacDonald. REPOSITORY: USNM.
Primary reference: W. P. Woodring. 1957. Geology and Paleontology of Canal Zone and adjoining parts of Panama. United States Geological Survey Professional Paper 306(A) [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 145344: authorized by Austin Hendy, entered by Austin Hendy on 01.06.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Turritella (Torcula) altilira Conrad 1857 turret shell SUBSPECIES: Turritella (Torcula) altilira altilira
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Bittium pericallum n. sp.2
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"Oliva (Oliva) gatunensis" = Oliva gatunensis3
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Anachis (Costoanachis) mira3 Dall 1896 snail INCLUDES: Anachis (Costoanachis) mira mira and Anachis (Costoanachis) mira fugax
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Terebra (Oreoterebra) subsulcifera4 Brown and Pilsbry 1911 auger snail SUBSPECIES: Terebra (Oreoterebra) subsulcifera subsulcifera
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Polinices canalizonalis, Tectonatica agna, Stigmaulax guppiana, "Natica (Naticarius) stenopa" = Naticarius, Sinum gabbi
Polinices canalizonalis moon snail
Tectonatica agna moon snail
Stigmaulax guppiana Toula 1909 moon snail
"Natica (Naticarius) stenopa" = Naticarius moon snail
Sinum gabbi Brown and Pilsbry 1913 moon snail | |
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"Architectonica (Architectonica) nobilis" = Architectonica nobilis2
"Architectonica (Architectonica) nobilis" = Architectonica nobilis2 Röding 1798 sundial SUBSPECIES: Architectonica (Architectonica) nobilis nobilis
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Bivalvia | |
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"Agiopoma (Pitarella) gatunensis" = Callocardia (Agriopoma) gatunensis6
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Anadara (Rasia) dariensis5 Brown and Pilsbry 1911 ark SUBSPECIES: Anadara (Rasia) dariensis dariensis
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Scaphopoda | |
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