Also known as USGS 6033a; WG147
Where: Colon, Panama (9.3° N, 79.9° W: paleocoordinates 9.0° N, 78.5° 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 Sr dating for nearby sections indicates an age of approximately 10.1 Ma (Hendy, unpublished data).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, fine-grained, silty sandstone
Size class: macrofossils
Preservation: original aragonite
Collected by MacDonald & Vaughan in 1911; reposited in the USNM
Collection methods: surface (float), surface (in situ),
• COLLECTOR: D.F. MacDonald and T.W. Vaughan, 1911. 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 145352: 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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"Cancellaria (Cancellaria) epistomifera" = Bivetiella epistomifera2
"Cancellaria (Cancellaria) epistomifera" = Bivetiella epistomifera2 Guppy 1876 snail SUBSPECIES: Cancellaria (Cancellaria) epistomifera dariena
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Stigmaulax guppiana Toula 1909 moon snail | |
Bivalvia | |
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"Trigoniocardia (Apiocardia) aminensis" = Trigoniocardia (Trigoniocardia) aminensis4, Trachycardium (Dallocardia) dominicense4
"Trigoniocardia (Apiocardia) aminensis" = Trigoniocardia (Trigoniocardia) aminensis4 Dall 1900 cockle
Trachycardium (Dallocardia) dominicense4 Gabb 1873 cockle SUBSPECIES: Trachycardium (Dallocardia) dominicense dominicense
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Chione (Chionopsis) tegulum4, "Agriopoma (Pitarella) gatunensis" = Callocardia (Agriopoma) gatunensis4, Lamelliconcha cora4, Cyclinella cyclica4, Clementia (Clementia) dariena4
Clementia (Clementia) dariena4 Conrad 1855 venus clam SUBSPECIES: Clementia (Clementia) dariena dariena
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Anadara (Rasia) dariensis3 Brown and Pilsbry 1911 ark SUBSPECIES: Anadara (Rasia) dariensis dariensis
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