Where: Douglas County, Oregon (43.0° N, 123.4° W: paleocoordinates 41.8° N, 72.1° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Days Creek Formation, Hauterivian (132.9 - 129.4 Ma)
• lobsters collected from upper member of Days Creek Formation
• member-level stratigraphic resolution
Environment/lithology: marine; fine-grained sandstone and concretionary siltstone
Size classes: macrofossils, microfossils
Preservation: concretion
Collected by D. Jones in 1970; reposited in the USNM
Collection methods: surface (float), surface (in situ), mechanical
Primary reference: R. M. Feldmann. 1974. Hoploparia riddlensis, a new species of lobster (Decapoda: Nephropidae) from the Days Creek Formation (Hauterivian, Lower Cretaceous) of Oregon. Journal of Paleontology 48(3):586-593 [C. Schweitzer/C. Schweitzer/C. Schweitzer]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 45688: authorized by Carrie Schweitzer, entered by Carrie Schweitzer on 24.11.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Phylloceras umpquanum" = Phyllopachyceras umpquanum
"Phylloceras umpquanum" = Phyllopachyceras umpquanum Anderson 1938 ammonite | |
Wellsia packardi, "Wellsia oregonensis" = Homolsomites oregonensis
Wellsia packardi Anderson 1938 ammonite
"Wellsia oregonensis" = Homolsomites oregonensis Anderson 1938 ammonite | |
Hannaites cf. riddlensis Anderson 1938 ammonite | |
Malacostraca | |
Hoploparia riddlensis Feldmann 1974 clawed lobster |