Ontogenetic development in Late Pennsylvanian crinoid columnals and pluricolumnals 

https://kuscholarworks.ku.edu/handle/1808/3821
Title: Ontogenetic development in Late Pennsylvanian crinoid columnals and pluricolumnals 
Author(s):
Russell M. Jeffords, Theo H. Miller
Paleo Publication Type:
KU Paleontological Contributions
Publication Format:
Journal article
Year of publication:
1968