Also known as USGS D306
Where: North Slope County, Alaska (70.1° N, 151.4° W: paleocoordinates 70.2° N, 151.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Gubik Formation, Early/Lower Pleistocene (2.6 - 0.8 Ma)
• Blanket deposit of gravel, sand, silt, and clay called the Gubik Formation rests confortably on the Tertiary. Assigned to the Pleistocene (originally to the Pliocene).
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified sandstone and siltstone
Size class: macrofossils
Reposited in the USNM
Collection methods: quarrying,
• Collections held at USNM, University of California, USGS (Washington) and USGS (Denver)
Primary reference: F.S. MacNeil. 1957. Cenozoic Megafossils of Northern Alaska. United States Geological Survey Professional Paper 294(C):99-126 [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 38007: authorized by Austin Hendy, entered by Austin Hendy on 30.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Thecostraca | |
Balanus sp. Da Costa 1778 barnacle | |
unclassified | |
Annelida indet. Lamarck 1809 | |
Bivalvia | |
"Chlamys hindsii" = Chlamys rubida
"Chlamys hindsii" = Chlamys rubida Hinds 1845 scallop | |
"Cardita (Cyclocardia) crebricostata" = Crassicardia crebricostata
"Cardita (Cyclocardia) crebricostata" = Crassicardia crebricostata Krause 1885 clam | |
"Astarte broweri" = Astarte arctica
"Astarte broweri" = Astarte arctica Gray 1824 clam | |
Cyrtodaria kurriana, "Saxicava arctica" = Hiatella arctica
Cyrtodaria kurriana Dunker 1861 clam
"Saxicava arctica" = Hiatella arctica Linnaeus 1767 clam | |
"Serripes groenlandicus" = Serripes (Serripes) groenlandicus
"Serripes groenlandicus" = Serripes (Serripes) groenlandicus Mohr 1786 cockle | |
"Spisula polynyma" = Mactromeris polynyma
| |
Gastropoda | |
Neptunea leffingwelli, Buccinum physematum, Buccinum aff. ochotense, Plicifusus aff. kroyeri, Colus (Aulacofusus) spitsbergensis
Neptunea leffingwelli true whelk
Buccinum physematum true whelk
Buccinum aff. ochotense Middendorf 1848 true whelk
Plicifusus aff. kroyeri true whelk
Colus (Aulacofusus) spitsbergensis true whelk | |
"Natica clausa" = Cryptonatica affinis
"Natica clausa" = Cryptonatica affinis Gmelin 1791 moon snail | |
"Antiplanes cf. perversa" = Antiplanes catalinae
"Antiplanes cf. perversa" = Antiplanes catalinae Raymond 1904 snail | |
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