|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Cephalopoda - Ammonitida - Olcostephanidae
It was reranked as Holcostephanus (Spiticeras) by Uhlig (1903).
It was assigned to Holcostephanus by Uhlig (1903); to Ammonoidea by Sepkoski (2002); and to Spiticeratinae by Arkadiev et al. (2000), Vasicek and Skupien (2013), Zell et al. (2015) and González-Arreola et al. (2017).
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.