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Retispira fragilis

Gastropoda - Bellerophontida - Bellerophontidae

Taxonomy
Knightites (Retispira) fragilis was named by Yochelson (1960). It is not a trace fossil. Its type locality is PU3, Apache Canyon, Sierra Diablo, which is in a Kungurian shallow subtidal limestone in the Bone Spring Formation of Texas.

It was recombined as Retispira fragilis by Kulas and Batten (1997) and Wagner (2017).

Synonymy list
YearName and author
1960Knightites (Retispira) fragilis Yochelson
1997Retispira fragilis Kulas and Batten p. 38 figs. pl. 1 f. 16A-C
2017Retispira fragilis Wagner p. 5898

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classGastropodaCuvier 1797
RankNameAuthor
orderBellerophontidaUlrich and Scofield 1897
suborderBellerophontina
superfamilyBellerophontoidea()
familyBellerophontidae
subfamilyKnightitinae
genusRetispira
speciesfragilis()

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