USGS 10062-SD, McGrath A5 Quadrangle (Devonian of the United States)

Also known as 79RB9

Where: Alaska (62.1° N, 155.2° W: paleocoordinates 2.2° N, 45.1° W)

• coordinate stated in text

• local area-level geographic resolution

When: Cheeneetnuk Formation, Eifelian (393.3 - 387.7 Ma)

• Early Eifelian

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Preservation: recrystallized, replaced with silica

Reposited in the USNM

Collection methods: hydrochloric

Primary reference: J. K. Rigby and R. B. Blodgett. 1983. Early Middle Devonian Sponges from the McGrath Quadrangle of West-Central Alaska. Journal of Paleontology 57(4):773-786 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 60043: authorized by Pete Wagner, entered by Pete Wagner on 27.04.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Demospongiae
 Agelasida - Fissispongiidae
Hormospongia diarteria, Hormospongia labyrinthica n. gen. n. sp.
Hormospongia diarteria Rigby and Blodgett 1983 demosponge
Hormospongia labyrinthica n. gen. n. sp. Rigby and Blodgett 1983 demosponge
 Spirosclerophorida - Haplistiidae
? Haplistion sp.
? Haplistion sp. Young and Young 1877 demosponge
1 definite, 2 possible specimens
Conodonta
 Ozarkodinida - Polygnathidae
Polygnathus costatus3
Polygnathus costatus3 Klapper 1971 conodont
P. costatus costatus
Rhynchonellata
 Rhynchonellida - Hadrorhynchiidae
Droharhynchia rzhonsnitskayae n. sp.1
Droharhynchia rzhonsnitskayae n. sp.1 Baxter and Blodgett 1994
Gastropoda
 Euomphalina - Pseudophoridae
Dutrochus alaskensis n. gen.2
Dutrochus alaskensis n. gen.2 Blodgett 1993 snail
 Murchisoniina - Cheeneetnukiidae
Cheeneetnukia frydai n. gen. n. sp.3
Cheeneetnukia frydai n. gen. n. sp.3 Blodgett and Cook 2002 snail
 Murchisoniina - Gosseletinidae
Spinulrichospira cheeneetnukensis4, Odontomaria cheeneetnukensis n. sp.5
Spinulrichospira cheeneetnukensis4 Blodgett and Rohr 1989 snail
Odontomaria cheeneetnukensis n. sp.5 Frýda et al. 2006 snail
Cephalopoda
 Agoniatitida - Sobolewiidae
? Subanarcestes sp.6
? Subanarcestes sp.6 Schindewolf 1933 ammonite
 Agoniatitida - Pinacitidae
Pinacites jugleri6
Pinacites jugleri6 Roemer 1843 ammonite
(Roemer 1843)
1Baxter and Blodgett 1994; 2Blodgett 1993; 3Blodgett and Cook 2002; 4Blodgett and Rohr 1989; 5Frýda et al. 2006; 6House and Blodgett 1982