Little Elk Creek, near Piedmont (Carboniferous of the United States)

Where: Meade County, South Dakota (44.2° N, 103.4° W: paleocoordinates 3.2° N, 31.6° W)

When: Minnelusa Formation, Moscovian (315.2 - 307.0 Ma)

• Fossils were recovered from green and gray silty shale referred to as the Petrodus II bed by Elder (1993).

Environment/lithology: lagoonal or restricted shallow subtidal; gray, green, calcareous shale

Size class: macrofossils

Collection methods: acetic

• Repository: Bob Campbell Geology Museum (BCGM), Clemson University, South Carolina. Additional specimens are housed at the Musemum of Geology (SDSM), South Dakota School of Mines and Technology.

•Collected during field trips by the Department of Geology and Geological Engineering, South Dakota School of Mines and Technology, Rapid City, South Dakota.

Primary reference: D. J. Cicimurri and M. D. Fahrenbach. 2002. Chondrichthyes from the Upper Part of the Minnelusa Formation (Middle Pennsylvanian: Desmoinesian) Meade County, South Dakota. Proceedings of the south Dakota Academy of Science 81:81-92 [M. Clapham/P. Vazquez/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132341: authorized by Matthew Clapham, entered by Priscilla Vazquez on 14.08.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Symmoriiformes - Symmoriidae
Petrodus patelliformis McCoy 1848 elasmobranch
BCGM 2932, BCGM 2933, BCGM 2950, SDSM 26051-53
 Euselachii -
Holmesella quadrata Gunnel 1931 elasmobranch
BCGM 2931, BCGM 4747, BCGM 4748
 Ctenacanthiformes - Ctenacanthidae
cf. Cladodus sp. Agassiz 1843 elasmobranch
BCGM 2936-37, SDSM 26054-55
  - Listracanthidae
"Listracanthus histrix" = Listracanthus hystrix
"Listracanthus histrix" = Listracanthus hystrix Newberry and Worthen 1870 elasmobranch
BCGM 2934, 2935, SDSM 26057-58
 Petalodontiformes - Janassidae
Janassa sp. chimaera
BCGM 2939-41
 Eugeneodontiformes - Edestidae
Edestus sp. Leidy 1855 chimaera
BCGM 2938
 Eugeneodontiformes - Caseodontidae
Caseodus aff. eatoni Zangerl 1981 chimaera
BCGM 2942-49