PBDB Taxon

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Cyrtostropha salteri

Gastropoda - Murchisoniina - Murchisoniidae

Taxonomy

Hormotoma salteri was named by Ulrich and Scofield (1897).

It was recombined as Murchisonia (Hormotoma) salteri by Fix (1975); it was recombined as Murchisonia salteri by Wagner (1999); it was recombined as Cyrtostropha salteri by Wagner (2023).

Subspecies

C. canadensis, Hormotoma salteri nitida, Hormotoma salteri ottawaensis, Hormotoma salteri tennesseensis

Synonyms

Hormotoma salteri groenlandica was named by Troedsson (1928) [Actually given as Hormotoma salteri canadensis; however, suggested that it might be a new variant groenlandica in the text....]. It is a 3D body fossil.

It was recombined as Hormotoma groenlandica by Wilson (1938); it was synonymized subjectively with Hormotoma salteri by Wagner (2023).
Hormotoma fasciata was named by Branson (1909). It is a 3D body fossil. Its type locality is Residuary Auburn Chert Beds, east of Auburn , which is in a Turinian carbonate claystone in the Decorah Formation of Missouri.

It was synonymized subjectively with Cyrtostropha salteri by Wagner (2023).

Synonymy list

Year	Name and author
1897	Hormotoma salteri Ulrich and Scofield p. 1016 figs. pl. 70 f. 44-48
1909	Hormotoma fasciata Branson p. 45 figs. pl. 7 f. 16
1923	Hormotoma salteri Foerste p. 80
1928	Hormotoma salteri groenlandica Troedsson p. 17 figs. pl. 3 f. 1-3
1938	Hormotoma groenlandica Wilson pp. 29 - 30
1951	Hormotoma salteri Wilson
1969	Hormotoma salteri Liberty
1975	Murchisonia (Hormotoma) salteri Fix p. 87–88
1999	Murchisonia salteri Wagner
2023	Cyrtostropha salteri Wagner

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca

Rank	Name	Author
class	Gastropoda
subclass	Orthogastropoda
order	Murchisoniina
superfamily	Murchisonioidea	()
family	Murchisoniidae
genus	Cyrtostropha	()
species	salteri	()

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.

†Cyrtostropha salteri Ulrich and Scofield 1897

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†Cyrtostropha salteri canadensis Ulrich and Scofield 1897

†Hormotoma salteri nitida Ulrich and Scofield 1897

†Hormotoma salteri ottawaensis Wilson 1951

Invalid names: Cyrtostropha fasciata Branson 1909 [synonym], Hormotoma groenlandica Troedsson 1928 [synonym]

†Hormotoma salteri tennesseensis Ulrich and Scofield 1897

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Diagnosis

Reference	Diagnosis
E.B. Branson 1909 (Hormotoma fasciata)	Shell large, very loosely coiled, apical angle about sixteen degrees. Band narrow, convex, considerably elevated. Suture very deep, lines of growth coarse, bending strongly backward from the suture to the band. Aperture slightly higher than wide.