Costatoblastus, a channel fill blastoid from the Sappington Formation of Montana

J. Sprinkle, and R. C. Gutschick

1967

Article

Journal of Paleontology 41(2):385-401

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Taxa discussed in this work:

• Costatoblastus
• Costatoblastus sappingonensis

Taxonomy:

• Costatoblastus sappingonensis belongs to Costatoblastus - Sprinkle and Gutschi (1967)