Ontogenetic variation of some Middle Carboniferous pleurotomarian gastropods

W. Sadlick, and M.F. Nielsen

1963

Article

Journal of Paleontology 37(5):1083-1103

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Taxa discussed in this work:

• Glabrocingulum binodosum
• Glabrocingulum quadrigatum
• Lunulazona
• Lunulazona costata