Field Locality 94R-3 (=USGS 79APA82b) (Silurian to of the United States)

Also known as Medfra B-3 Quadrangle, Nixon Fork subterrane of Farewell terrane.

Where: Alaska (63.3° N, 154.6° W: paleocoordinates 12.8° N, 51.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Gorstian to Gorstian (427.4 - 419.2 Ma)

• unnamed Medfra limestone

• formation-level stratigraphic resolution

Environment/lithology: limestone

• platy limestone

Size class: macrofossils

Reposited in the USNM

Primary reference: D. M. Rohr, R. B. Blodgett, and J. Frýda. 2003. New Silurian muchisoniid gastropods from Alaska and a review of the genus Coelocaulus. Short notes on Alaska geology 2003, Division of Geological and Geophysical Surveys Professional Report 120:88-93 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55429: authorized by Pete Wagner, entered by Pete Wagner on 21.10.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Conodonta
 Ozarkodinida -
Ozarkodina confluens
Ozarkodina confluens Rhodes 1953 conodont
Gastropoda
 Murchisoniina - Hormotomidae
Medfracaulus cooki n. gen. n. sp., Coelocaulus karlae
Medfracaulus cooki n. gen. n. sp. Rohr et al. 2003 snail
Coelocaulus karlae Rohr et al. 2003 snail
 Murchisoniina - Murchisoniidae
Morania nixonforkensis n. sp.
Morania nixonforkensis n. sp. Rohr et al. 2008 snail