UCMP D-5544, Murry Summit (Permian of the United States)

Where: White Pine County, Nevada (39.2° N, 115.0° W: paleocoordinates 13.8° N, 36.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Loray Formation, Kungurian (279.3 - 272.3 Ma)

• 127' (39 m) above base of Loray Formation

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, calcareous mudstone

• The rocks containing this community are calcareous mudstone and siltstone and wackestones with a high proportion of clay and noncalcaroues silt. The community is sometimes found in coarser grained muddy sandstone and packstone. The sediments are thin bedded and sometimes laminated.

Size class: macrofossils

Collected by T. Yancey, L. Plas, M. Kaasa; reposited in the UCMP

• Also included in the list 1 sponge (indiv.), 16 encrusting byrozoa (indiv.), 1 ostracod (indiv.), and 10 ophiuroids (indiv.)

Primary reference: T. E. Yancey and C.H. Stevens. 1981. Early Permian fossil communities in northeastern Nevada and northwestern Utah. In J.Gray, A.J. Boucot, and W.B.N. Berry (eds.), Communitites of the Past 243-269 [T. Olszewski/M. Gibson/S. Bruning]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 10445: authorized by Tom Olszewski, entered by Melissa Gibson on 16.04.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Polychaeta
 Sabellida - Serpulidae
Spirorbis sp.
Spirorbis sp. Daudin 1800
Bivalvia
 Nuculida - Nuculidae
Nuculavus sp.
Nuculavus sp. Tschernyschev 1943 nut clam
 Nuculanida - Polidevciidae
Polidevcia sp.
Polidevcia sp. Tschernyschev 1943 clam
 Ostreida - Bakevelliidae
Bakevellia sp.
Bakevellia sp. King 1848 oyster
 Cardiida - Kalenteridae
Permophorus sp.
Permophorus sp. Chavan 1954 clam
 Trigoniida - Schizodidae
Schizodus sp.
Schizodus sp. King 1844 clam
Gastropoda
 Caenogastropoda - Goniasmatidae
Goniasma sp.
Goniasma sp. Tomlin 1930 snail
 Euomphalina - Euomphalidae
Leptomphalus sp.
Leptomphalus sp. Yochelson 1956 snail
 Neritoidea - Naticopsidae
Naticopsis sp.
Naticopsis sp. M'Coy 1844 snail
 Bellerophontida - Euphemitidae
Euphemitopsis sp.
Euphemitopsis sp. Yochelson 1960 snail
Cephalopoda
 Pseudorthocerida - Pseudorthoceratidae
Pseudorthoceras sp.
Scaphopoda
 Dentaliida - Prodentaliidae
Prodentalium sp.
Prodentalium sp. Young 1942 tusk shell