Kingdom Animalia Superfamily Xenodiscaceae Phylum Mollusca Order Ceratitida | Suborder Paraceltitina Family Xenodiscidae Rank Genus Subclass Ammonites | |
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Similar Ammonites, Xenodiscidae, Ceratitida, Cyclolobus, Meekoceras | ||
Xenodiscus is an extinct ammonoid cephalopod genus and one of the earliest ceratites, found in the Upper Permian of northern India and Timor. Xenodiscus is included in the family Xenodiscidae which is part of the ceratite superfamily Xenodiscaceae
Xenodiscus has a thinly discoidal and ribbed shell with ceratitic sutures, coiled so all whorls are exposed. The whorl section is subquadrate and compressed, so as to be narrower than high.
References
Xenodiscus Wikipedia(Text) CC BY-SA