IRMNG taxon details
original description
Cantú Chapa, A. (2012). The suture line patterns in Olcostephanidae and Spiticeratidae, ammonites of the Upper Jurassic-Lower Cretaceous: systematic considerations. <em>Paleontología Mexicana.</em> 62: 52-66., available online at https://www.researchgate.net/publication/290158151 [details]
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