|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Cephalopoda - Ammonitida - Collignoniceratidae
It was reranked as Mortoniceras (Submortoniceras) by Anderson (1958).
It was assigned to Mortoniceras by Anderson (1958); to Texanitinae by Kennedy et al. (1973), Haggart and Ward (1989) and Kennedy and Cobban (1993); and to Ammonoidea by Sepkoski (2002).
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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.