Also known as USGS 8376; WG147i
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 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 Sr dating for nearby sections indicates an age of approximately 10.1 Ma (Hendy, unpublished data).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; unlithified, fine-grained, 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, 1918. 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 145210: authorized by Austin Hendy, entered by Austin Hendy on 29.05.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Scaphopoda | |
Dentalium (Dentalium) armillatum4 tusk shell SUBSPECIES: Dentalium (Dentalium) armillatum armillatum
| |
Gastropoda | |
| |
Turritella (Turritella) gatunensis Conrad 1857 turret shell SUBSPECIES: Turritella (Turritella) gatunensis gatunensis
| |
| |
Nassarius (Nanarius) parapristus2 Gardner 1944 snail SUBSPECIES: Nassarius (Nanarius) parapristus acolus
| |
Teinostoma (Aepystoma) andrium, "Teinostoma (Idioraphe) spermatia" = Teinostoma (Idioraphie)
"Teinostoma (Idioraphe) spermatia" = Teinostoma (Idioraphie) snail | |
| |
"Architectonica (Architectonica) nobilis" = Architectonica nobilis1
"Architectonica (Architectonica) nobilis" = Architectonica nobilis1 Röding 1798 sundial SUBSPECIES: Architectonica (Architectonica) nobilis nobilis
| |
| |
Retusa (Cylichnina) quercinensis3, Volvulella (Volvulella) phoinicoides3, Volvulella (Volvulella) oxytata3
| |
| |
| |
Bivalvia | |
| |
"Ventricolaria sp." = Globivenus5
|