PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Trepospira illinoisensis

Gastropoda - Murchisoniina - Gosseletinidae

Taxonomy

Pleurotomaria illinoiensis was named by Worthen (1884). It is a 3D body fossil.

It was recombined as Trepospira illinoiensis by Karapunar and Nützel (2022); it was recombined as Trepospira illinoisensis by Mark (1912), Sturgeon (1964), Sturgeon (1964), Yochelson and Saunders (1967), Kues (1984), Kues (1991), Kues (1996), Kues and Batten (2001), Kues et al. (2002) and Wagner (2023).

Synonyms

Trepospira (Trepospira) minima was named by Hoare (1961). Its type specimen is U. Missouri 1341, a shell, and it is not a trace fossil. Its type locality is Loc. 13. Dry Wood Creek, 100 yards west of US 71, 4.75 miles north of junction betwen US 71 and US 160, which is in a Desmoinesian carbonate limestone in the Krebs Formation of Missouri.

It was synonymized subjectively with Trepospira illinoiensis by Karapunar and Nützel (2022).
Pleurotomaria kentuckiensis was named by Miller (1889).

It was synonymized subjectively with Trepospira illinoiensis by Karapunar and Nützel (2022).
Pleurotomaria depressa was named by Cox (1857). It is a 3D body fossil.

It was recombined as Trepospira depressa by Girty (1915), Morningstar (1922), Chronic (1953) and Elias (1958); it was replaced with Trepospira illinoiensis by Karapunar and Nützel (2022).

Synonymy list

Year	Name and author
1857	Pleurotomaria depressa Cox p. 569 figs. pl. 8 f. 10-10a
1884	Pleurotomaria illinoiensis Worthen p. 4
1889	Pleurotomaria kentuckiensis Miller
1890	Pleurotomaria illinoiensis Worthen p. 135 figs. pl. 23 f. 6a-b
1912	Trepospira illinoisensis Mark p. 298
1915	Trepospira depressa Girty pp. 158 - 162 figs. pl. 21 f. 6-11
1922	Trepospira depressa Morningstar pp. 143, 254 - 255
1953	Trepospira depressa Chronic p. 137 figs. Pl 27, figs 9a-10
1958	Trepospira depressa Elias p. 6
1961	Trepospira (Trepospira) minima Hoare pp. 150-151 figs. pl. 20 f. 14, 16, 18
1964	Trepospira illinoisensis Sturgeon pp. 203 - 204 figs. pl. 34 f. 7-15; pl. 36 f. 6
1967	Trepospira illinoisensis Yochelson and Saunders p. 236
1984	Trepospira illinoisensis Kues figs. f. 3.23
1991	Trepospira illinoisensis Kues p. 225 figs. 2.26-2.28
1996	Trepospira illinoisensis Kues p. 181 figs. f. 7.7-7.8
2001	Trepospira illinoisensis Kues and Batten p. 21 figs. f. 5.1-5.3
2002	Trepospira illinoisensis Kues et al. p. 127 figs. 3R-s
2022	Trepospira illinoiensis Karapunar and Nützel p. 8 fig. 4
2023	Trepospira illinoisensis Wagner p. 5104

Is something missing? Join the Paleobiology Database and enter the data

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

Rank	Name	Author
subclass	Orthogastropoda
order	Murchisoniina
superfamily	Eotomarioidea
family	Gosseletinidae
subfamily	Gosseletininae
genus	Trepospira
species	illinoisensis	()

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.

†Trepospira illinoisensis Worthen 1884

show all | hide all

Invalid names: Pleurotomaria depressa Cox 1857 [replaced], Pleurotomaria kentuckiensis Miller 1889 [synonym], Trepospira (Trepospira) minima Hoare 1961 [synonym]

Diagnosis

Reference	Diagnosis
B. S. Kues et al. 2002	The shell is discoid in shape, with a wide, shallow umbilicus lined with a thickened inductura. The only ornamentation is a row of conspicuous nodes on a raised spiral ridge immediately below the upper suture, numbering from 16 (small specimen) to a maximum of 22 on the body whorl. The observable shell features are all consistent with the characteristics of T. illinoisensis (e.g., Kues and Batten, 2001), but poor preservation precludes positive assignment to that species.