Under Construction

Procambarus (Austrocambarus) primaevus Packard 1880group is extinct

Keith A. Crandall, James W. Fetzner, Jr., and Horton H. Hobbs, Jr.
Containing group: Procambarus (Austrocambarus)


Neotype, American Museum of Natural History, New York, New York 42675 (male).

Type Locality

Green River beds (Eocene) of western Wyoming in "the fish beds of the Bear River Valley, situated from 75 to 100 miles [120 to 160 km] a little west of north of Evanston, Wyo., and near the Utah line" (Packard, 1881b:391).


Known only from the Green River beds (Eocene) of Wyoming.


Fossil Lake.


Hobbs, H. H. Jr. 1989. An Illustrated Checklist of the American Crayfishes (Decapoda: Astacidae, Cambaridae, and Parastacidae). Smithsonian Institution Press.

Packard, A. S., Jr. 1880. Fossil Crawfish from the Teriaries of Wyoming. American Naturalist, 14(3): 222-223.

Packard, A.S., Jr. 1881. On a Crayfish from the Lower Tertiary Beds of Western Wyoming. Bulletin of the United States Geological and Geographical Survey, 6(2): 391-397, figures 1, 2.

About This Page
Page constructed by Emily Browne.

Keith A. Crandall
Brigham Young University, Provo, Utah, USA

James W. Fetzner, Jr.
Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA

Horton H. Hobbs, Jr.
Wittenberg University, Springfield, Ohio, USA

Correspondence regarding this page should be directed to Keith A. Crandall at

All Rights Reserved.

Citing this page:

Crandall, Keith A., James W. Fetzner, Jr., and Horton H. Hobbs, Jr. 2001. Procambarus (Austrocambarus) primaevus Packard 1880. Version 01 January 2001 (under construction). http://tolweb.org/Procambarus_%28Austrocambarus%29_primaevus/7387/2001.01.01 in The Tree of Life Web Project, http://tolweb.org/

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