The Paleobiology Database

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

Pleydellia

Taxonomy

Pleydellia is a genus. It is not extant.

It was assigned to Ammonoidea by Sepkoski (2002); and to Grammoceratinae by Howarth (2013).

Species

Species lacking formal opinion data

Sister genera

Synonyms

Cotteswoldia is a genus.

It was synonymized subjectively with Pleydellia by Howarth (2013).

It was assigned to Ammonoidea by Ohmert et al. (1996).
Canavarina was named by Buckman (1904).

It was synonymized subjectively with Pleydellia by Howarth (2013).
Canavaria was named by Buckman (1902).

It was replaced with Canavarina by Howarth (2013).
Walkericeras was named by Buckman (1913).

It was synonymized subjectively with Pleydellia by Howarth (2013).
Walkeria was named by Buckman (1902).

It was replaced with Walkericeras by Howarth (2013).
Nadorites was named by Elmi and Caloo-Fortier (1985).

It was synonymized subjectively with Pleydellia by Howarth (2013).

Synonymy list

Year	Name and author
1902	Canavaria Buckman
1902	Walkeria Buckman
1904	Canavarina Buckman
1913	Walkericeras Buckman
1985	Nadorites Elmi and Caloo-Fortier
1996	Cotteswoldia Ohmert et al. p. 25
2002	Pleydellia Sepkoski, Jr.
2013	Pleydellia Howarth p. 91

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