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Hyphantozyga gracilis

Gastropoda - Pseudozygopleuridae

Taxonomy
Hemizyga (Hyphantozyga) gracilis was named by Knight (1930). Its type specimen is YPM 13003, a shell, and it is not a trace fossil. Its type locality is SL-1. Headwaters of Feefee Creek, north of Olive St. & west of Lindberg Blvd., 1.5 km northwest of Stratmann (Olivette), which is in a Moscovian marine shale in the Appanoose Formation of Missouri. It is the type species of Hyphantozyga, Hemizyga (Hyphantozyga).

It was recombined as Plocezyga (Hyphantozyga) gracilis by Hoare and Sturgeon (1980); it was recombined as Ploceozyga (Hyphantozyga) gracilis by Pan and Erwin (2002); it was recombined as Hyphantozyga gracilis by Wagner (2017).

Synonymy list
YearName and author
1930Hemizyga (Hyphantozyga) gracilis Knight p. 73 figs. pl. 5 f. 5
1980Hemizyga (Hyphantozyga) gracilis Hoare and Sturgeon pp. 164 - 165 figs. pl. 1 f. 15; table 2
1980Plocezyga (Hyphantozyga) gracilis Hoare and Sturgeon p. 1101
2001Hemizyga (Hyphantozyga) gracilis Kues and Batten p. 77
2002Ploceozyga (Hyphantozyga) gracilis Pan and Erwin p. 25
2017Hyphantozyga gracilis Wagner p. S5366

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
subclassProsobranchiaMilne-Edwards 1848
superorderCaenogastropodaCox 1959
superfamilyZygopleuroidea
familyPseudozygopleuridae()
genusHyphantozyga()
speciesgracilis()

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.

Diagnosis
No diagnoses are available