Eubostrychoceras is a genus of heteromorph ammonite from the upper Cretaceous of Antarctica, Europe, Asia, North America, and Madagascar.
| Eubostrychoceras Temporal range: 91–72 Ma | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitidea |
| Suborder: | †Ancyloceratina |
| Family: | †Nostoceratidae |
| Genus: | †Eubostrychoceras Matsumoto, 1967 |