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Plocezyga

Gastropoda - Pseudozygopleuridae

Synonymy list
YearName and author
1930Hemizyga (Plocezyga) Knight pp. 17 – 18
1960Plocezyga Knight et al. p. 315
1980Gamizyga (Plocezyga) Hoare and Sturgeon p. 160
1980Plocezyga Hoare and Sturgeon p. 1101
2002Ploceozyga Pan and Erwin p. 25
2002Plocezyga Sepkoski
2023Plocezyga Wagner p. G1200

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classGastropoda
subclassCaenogastropoda(Cox 1959)
superfamilyZygopleuroidea
familyPseudozygopleuridae()
genusPlocezyga()

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.

G. †Plocezyga Knight 1930
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Gamizyga (Plocezyga) percostata subrotunda Hoare and Sturgeon 1980
Subg. †Plocezyga (Plocezyga) Knight 1930
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Plocezyga (Plocezyga) varica Pan and Erwin 2002
Plocezyga (Plocezyga) yunnanensis Pan and Erwin 2002
Plocezyga acuminata Hoare and Sturgeon 1980
Plocezyga boikoi Mazaev 2019
Plocezyga conica Hoare and Sturgeon 1980
Plocezyga convexa Mazaev 2019
Plocezyga cordiformis Hoare and Sturgeon 1980
Plocezyga corona Knight 1930
Plocezyga costata Mark 1912
Plocezyga delicata Hoare and Sturgeon 1980
Plocezyga excellens Hoare and Sturgeon 1980
Plocezyga gruendeli Kaim 2004
Plocezyga indica Reed 1944
Plocezyga intermedia Hoare and Sturgeon 1980
Plocezyga lineata Hoare and Sturgeon 1980
Plocezyga lirata Hoare and Sturgeon 1980
Plocezyga markae Hoare and Sturgeon 1980
Plocezyga minuta Mazaev 2019
Plocezyga obscura Hoare and Sturgeon 1980
Plocezyga ornata Mark 1912
Plocezyga ornatissima Hoare and Sturgeon 1980
Plocezyga percostata Knight 1930
Plocezyga perminuta Hoare and Sturgeon 1980
Plocezyga regularia Hoare and Sturgeon 1980
Plocezyga salomonense Gemmellaro 1889
Plocezyga subnodosa Hoare and Sturgeon 1980
Plocezyga subquadrata Hoare and Sturgeon 1980
Plocezyga tenuilirata Knight 1930
Plocezyga turbinata Hoare and Sturgeon 1980
Plocezyga venusta Mazaev 2019
Diagnosis
ReferenceDiagnosis
J. B. Knight 1930Hemizygae with strong transverse costae that are confined to the
sides of the volution, and with fine revolving lirae on the sides and base. The columellar section shows a slightly arcuate columella, a sub-circular opening and a relatively thin outer wall with no localized thickening (Fig. 3, F). The pseudozygopleuroid nucleus has been observed in numerous specimens.