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Turonian (Cretaceous) ammonites from northeastern Chihuahua, Mexico
J. D. Powell
1963
Article
Journal of Paleontology
37(6):1217-1232
Find it at:
Taxa discussed in this work:
Morrowites depressus
Pseudaspidoceras chispaense
Selwynoceras mexicanum
Spathites rioensis
Taxonomy:
Selwynoceras mexicanum
belongs to
Selwynoceras
- Powell (1963)
Pseudaspidoceras chispaense
belongs to
Selwynoceras mexicanum
- Powell (1963)