Euaptetoceras
| Euaptetoceras Temporal range:
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ammonitida |
| Family: | †Hammatoceratidae |
| Subfamily: | †Hammatoceratinae |
| Genus: | †Euaptetoceras Buckman, 1922 |
| Species[2] | |
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Euaptetoceras is an evolute hildoceratoid ammonite from the lower Middle Jurassic, included in the family Hammatoceratidae and the subfamility Hammatoceratinae. The genus may be a junior synonym for Eudmetoceras of Buckman, 1920.
The shell of Euaptetoceras has an evolute, compressed, discoidal shape with a whorl section higher than wide. The inner whorls have long primary ribs while the outer whorls become smooth. The venter, which is the outer rim, is narrowly to sharply rounded and its suture is rather complex. Euaptetoceras is found in strata of Europe, Iran, and Argentina.
References
- ^ Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2014-05-28.
{{cite journal}}: Cite journal requires|journal=(help) - ^ "Paleobiology Database - Euaptetoceras". Retrieved 2017-10-19.
- Arkell et al., 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L (Mollusca 4, Ammonoidea). Geological Soc. of America and Univ. Kansas Press.
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