Name:
Albertella helena
Walcott, 1908
Trilobite Order Corynexochida, Family Zacanthoididae
Locality: Gordon Shale, Fishtrap Creek area, Montana
Stratigraphy: Middle Cambrian
Remarks: 5 and 8 mm
Credits: Trilobites Family
Album
Name: Albertella helena
Walcott, 1908
Trilobite Order
Corynexochida, Family Zacanthoididae
Locality: left: northwestern
Montana; middel: Nye Co., Nevada
Stratigraphy: left: Gordon
Shale, Middle
Cambrian; middle: Chisholm Shale,
Mid. Cam.
Remarks: left & middle: Photos:
George Ast Collection
Note: line drawing modified from: Moore,
R. C. (ed.) (1959): Treatise on Invertebrate Paleontology, O, Arthropoda,
I. University of Kansas Press.
Also
occurs in the Cathedral (Dolomite) Formation, Ross Lake Shale
Member, Albertella Zone (Albertella Fauna), eastern
British Columbia (Banff National Park).
