The Paleobiology Database

Basic info	Taxonomic history	Classification	Relationships
Morphology	Ecology and taphonomy	Map	Age range and collections

Ptychoceratoidea

Taxonomy

Ptychoceratoidea was named by Gill (1871).

It was assigned to Ammonoidea by Klein et al. (2007).

Subtaxa

Sister taxa

Synonymy list

Year	Name and author
1871	Ptychoceratoidea Gill
2007	Ptychoceratoidea Klein et al. p. 264

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