Cambrian Agnostida of North America and Greenland, Part I, Ptychagnostidae

https://kuscholarworks.ku.edu/handle/1808/3668
Title: Cambrian Agnostida of North America and Greenland, Part I, Ptychagnostidae
Author(s):
Richard A. Robison
Paleo Publication Type:
KU Paleontological Contributions
Publication Format:
Journal article
Year of publication:
1984