Also known as Location 42d; field #207
Where: Panama (9.2° N, 79.9° W: paleocoordinates 7.7° N, 77.5° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Bohio Formation, Chattian (28.1 - 23.0 Ma)
• The Bohio Formation overlies the Gatuncillo Formation conformably in most areas, although may lap onto the Gauncillo Formation or basement. The thickness of the formation is about 75 metres to as much as 450 metres. Smaller foraminifera from the basal part of the formation yielded a early Oligocene age. The upper part of the formation, from which the collections are derived yields larger foraminifera of late Oligocene age.
• bed-level stratigraphic resolution
Environment/lithology: shoreface; lithified, medium-grained, calcareous sandstone
Size class: macrofossils
Reposited in the USNM
Collection methods: quarrying,
• Collected by Woodring (1954). Material is also held (but not specified for any specific collection) at Stanford University, Acad. Nat. Sci. Phil., Corenell University, PRI, U. Cal. and Cal. Acad. Sci.
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 42558: authorized by Austin Hendy, entered by Austin Hendy on 02.08.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
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Dosinia (Dosinia) aff. delicatissima4, Chione (Chionopsis) posorjensis4, "Macrocallista (Paradione) maculata" = Macrocallista maculata4, Pleiorytis orthra4
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"Semele cf. venusta" = Semele (Amphidesma) venusta4
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Scaphopoda | |
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Gastropoda | |
"Cerithium (Thericium) mimeticum" = Thericium1
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Polinices sp. Monfort 1810 moon snail
"Natica (Naticarius) cf. sp." = Naticarius Dumeril 1806 moon snail
Sinum sp. Röding 1798 moon snail | |
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"? Drillia (? Neodrillia) sp." = Neodrillia2
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Pachycrommium aff. guppyi Gabb 1873 snail
Globularia (Globularia) aff. fischeri Dall 1892 snail | |
"Turritella cf. altilira" = Turritella (Bactrospira) altilira, Turritella aff. venezuelana
"Turritella cf. altilira" = Turritella (Bactrospira) altilira Conrad 1857 turret shell Wooding (1959) repeats list, but does not include T. altilira, but rather T. listrota
Turritella aff. venezuelana Hodson 1926 turret shell Wooding (1959) repeats list, but does not include T. venezuela, but rather T. listrota
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Solariella ephnidia Woodring 1959 snail | |
Cephalopoda | |
Aturia sp.4 Bronn 1838 |