USGS 10063-SD. 3 m. thick silicified bed 82 m. below top of formation. (Devonian of the United States)

Also known as 79RB12

Where: Alaska (62.1° N, 155.1° W: paleocoordinates 2.3° N, 44.9° W)

• coordinate stated in text

• local area-level geographic resolution

When: Polygnathus costatus costatus conodont zone, Cheeneetnuk Formation, Eifelian (393.3 - 387.7 Ma)

• Early Eifelian (Polygnathus costatus costatus zone)

• bed-level stratigraphic resolution

Environment/lithology: lithified dolomite

Size class: macrofossils

Preservation: recrystallized, replaced with silica

Reposited in the USNM

Primary reference: R. B. Blodgett and D. M. Rohr. 1989. Two new Devonian spine-bearing pleurotomariacean gastropod genera from Alaska. Journal of Paleontology 63(1):47-52 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 60044: authorized by Pete Wagner, entered by Pete Wagner on 27.04.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Spiriferida - Verneuiliidae
Verneuilia langenstrasseni n. sp.2 Blodgett and Johnson 1994
8 ventral, 6 dorsal valves
 Spiriferinida - Komiellidae
Komiella gilberti n. sp.4 Johnson and Blodgett 1993
6 articulated, 5 ventral, 1 dorsal
Gastropoda
 Murchisoniina - Gosseletinidae
Spinulrichospira cheeneetnukensis n. gen. n. sp. Blodgett and Rohr 1989 snail
Odontomaria cheeneetnukensis3 Frýda et al. 2006 snail
 Euomphalina - Pseudophoridae
Decorospira tasselli1 Blodgett and Johnson 1992 snail