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Dawsonoceras fenestratum
Taxonomy
Cycloceras fenestratum was named by Eichwald (1860). It is not extant.
It was recombined as Dawsonoceras fenestratum by Kröger and Isakar (2006).
It was recombined as Dawsonoceras fenestratum by Kröger and Isakar (2006).
Sister species lacking formal opinion data