Dithyrocaris rolfei Schram and Horner, 1978

Taxonomy

Phyllocarid

Kingdom: Animalia
Phylum: Arthropoda Latreille 1829
Class: Malacostraca Latreille 1802
Order: Archaeostraca Claus 1888
Family: Rhinocarididae Hall and Clarke 1888
Genus: Dithyrocaris
Species: Dithyrocaris rolfei
Author Citation Schram and Horner, 1978

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: 5.3 cm
Width: 1.6 cm

Location

Bear Gulch
Fergus County
Montana
United States

• bear gulch
• carboniferous
• dithyrocaris
• heath shale
• montana
• phyllocarid
• serpukhovian
• tff-oilshale-ar2547

Comments

Taxonomy according to Schram and Horner, 1978, p. 394.

Diagnosis (Schram and Horner, 1978, p. 394): "Rhinocarid of large size; carapace covered with hairlike ornament; furcae about 1 ½ times as long as the telson."
 

Dithyrocaris rolfei, reconstruction from Schram and Horner, 1978, p. 395.

Identified by oilshale using Schram and Horner, 1978.

 

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.