Belotelson magister (PACKARD, 1886)

By oilshale (edited)

• September 21, 2016

Taxonomy

Kingdom: Animalia
Phylum: Arthropoda Latreille 1829
Class: Malacostraca Latreille 1802
Order: Belotelsonidea Schram 1981
Family: Belotelsonidae Schram 1974
Genus: Belotelson
Species: Belotelson magister
Author Citation (PACKARD, 1886)

Geological Time Scale

Eon: Phanerozoic
Era: Paleozoic
Period: Carboniferous
Sub Period: Mississippian
Epoch: Late
International Age: Serpukhovian

Stratigraphy

Big Snowy Group
Heath Formation
Bear Gulch Bed

Provenance

Acquired by: Purchase/Trade

Dimensions

Length: 8 cm

Location

Bear Gulch
Fergus County
Montana
United States

• bear gulch
• carboniferous
• heath shale
• serpukhovian
• tff-oilshale-ar1250

Comments

Taxonomy from Fossilworks.org.

Diagnosis from Factor & Feldman 1985 p.344: “Eumalacostracan, shrimp-like in overall appearance, with large, smooth carapace; rostrum long; 8 pairs of long, subequal, achelate thoracopods.”
Line drawing from Factor & Feldman 1985,  p 345.

Bar represents 1 cm.

Identified by oilshale.

References:
Schram, F. R. and Horner J. (1978): Crustacea of the Mississippian Bear Gulch Limestone of Central Montana. Journal of Paleontology 52(2):394-406.
Factor D. F. and Feldmann R. M. (1985): Systematics and Paleoecology of Malacostracan Arthropods in the Bear Gulch Limestone (Namurian) of central Montana. Carnegie Museum of Natural History. 54, 319-356.
Jenner, R. A., Hof, C. and Schram, F. R. (1998): Palaeo- and archaeostomatopods (Hoplocarida, Crustacea) from the Bear Gulch Limestone, Mississippian (Namurian), of central Montana. Contributions to Zoology 67 (3) 155-185.