Where: Marion County, Oregon (45.1° N, 122.6° W: paleocoordinates 44.7° N, 113.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Abiqua Member (Scotts Mills Formation), Chattian (28.1 - 23.0 Ma)
• STRATIGRAPHIC RELATIONS: From the Abiqua Mbr of the Scotts Mills Fm, which conformably underlies the Marquam Mbr of the same formation. AGE: Late Oligocene STRATIGRAPHIC POSITION: From the basal part of the member.
•Age after Nesbitt 2018.
• bed-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, tuffaceous, shelly/skeletal limestone
Size class: macrofossils
Collected by Linder; reposited in the UCMP
Collection methods: surface (in situ),
• COLLECTOR: R. Linder. REPOSITORY: UCMP, Berkeley.
Primary reference: R. A. Linder, J. W. Durham, and W. N. Orr. 1988. New late Oligocene echinoids from the central western cascades of Oregon. Journal of Paleontology 62(6):945-958 [A. Hendy/A. Hendy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 90569: authorized by Austin Hendy, entered by Austin Hendy on 06.08.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Stomechinus dissimilaris n. sp.
Stomechinus dissimilaris n. sp. Linder et al. 1988 sea urchin | |
Lytechinus baldwini n. sp.
Lytechinus baldwini n. sp. Linder et al. 1988 sea urchin | |
Arbacia abiquaensis n. sp.
Arbacia abiquaensis n. sp. Linder et al. 1988 sea urchin | |
Kewia marquamensis Linder et al. 1988 sand dollar | |
Glyptocidaris sp. Agassiz 1853 sea urchin | |
Salenia cascadensis n. sp.
Salenia cascadensis n. sp. Linder et al. 1988 sea urchin | |
Gagaria crenularis n. sp.
Gagaria crenularis n. sp. Linder et al. 1988 sea urchin |