Also known as USGS 8366; WG161d
Where: Colon, Panama (9.3° N, 79.9° W: paleocoordinates 9.0° N, 78.6° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: middle Gatun Member (Gatun Formation), Tortonian (11.6 - 7.2 Ma)
• LITHOSTRATIGRAPHY: From middle part of the Gatun Formation. The Gatun Formation is sibdivided 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 Sr dating for nearby sections indicates an age of approximately 10.1 Ma (Hendy, unpublished data).
• bed-level stratigraphic resolution
Environment/lithology: marine; poorly lithified siltstone and poorly lithified, silty sandstone
Size class: macrofossils
Preservation: original aragonite
Collected by Olsson in 1918; reposited in the USNM
Collection methods: surface (float), surface (in situ),
• COLLECTOR: A.A. Olsson. 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 145338: authorized by Austin Hendy, entered by Austin Hendy on 01.06.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
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Turritella (Torcula) altilira Conrad 1857 turret shell SUBSPECIES: Turritella (Torcula) altilira altilira
Turritella abrupta Spieker 1922 turret shell | |
Polinices brunneus, Stigmaulax guppiana, "Natica (Naticarius) stenopa" = Naticarius, Natica (Natica) bolus
Stigmaulax guppiana Toula 1909 moon snail
"Natica (Naticarius) stenopa" = Naticarius moon snail
Natica (Natica) bolus Brown and Pilsbry 1913 moon snail | |
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"Mitra (Tiara) longa" = Subcancilla longa2
"Mitra (Tiara) longa" = Subcancilla longa2 Gabb 1873 mitre shell SUBSPECIES: Mitra (Tiara) longa longa
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"Oliva (Oliva) gatunensis" = Oliva gatunensis2
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"Semicassis (Tylocassis) reclusa" = Semicassis reclusa1
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Bivalvia | |
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"Trigoniocardia (Apiocardia) aminensis" = Trigoniocardia (Trigoniocardia) aminensis5
"Trigoniocardia (Apiocardia) aminensis" = Trigoniocardia (Trigoniocardia) aminensis5 Dall 1900 cockle | |
"Tellina (Eurytellina) punicea" = Eurytellina punicea5
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