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Tancrediopsis contracta

Bivalvia - Protobranchia - Ctenodontidae

Taxonomy
Ctenodonta contracta was named by Salter (1859) [DISTRIBUTION: Ordovician; North America.]. It is a 3D body fossil. Its type locality is Wilson Loc 001. Paquette Rapids, east end of Allumette Island, which is in a Rocklandian carbonate limestone in the Bobcaygeon Formation of Canada.

It was recombined as Tellinomya contracta by Walcott (1884); it was recombined as Ctenodonta (Tancrediopsis) contracta by Beushausen (1895); it was synonymized subjectively with Tancrediopsis cuneata by McAlester (1963); it was recombined as Tancrediopsis contracta by Cossmann (1897), Cox et al. (1969) and Toni (1975).

Sister species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1859Ctenodonta contracta Salter p. 37 figs. pl. 8, figs. 4, 5
1884Tellinomya contracta Walcott p. 76 figs. pl. 11, figs. 15, 15a.
1895Ctenodonta (Tancrediopsis) contracta Beushausen p. 70
1897Tancrediopsis contracta Cossmann
1969Tancrediopsis contracta Cox et al. p. N229
1975Tancrediopsis contracta Toni

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
RankNameAuthor
orderProtobranchiaPelseneer 1889
superorderNuculiformiiDall 1889
orderSolemyidaNewell 1965
superfamilySolemyoideaAdams and Adams 1857
familyCtenodontidaeWöhrmann 1893
genusTancrediopsis()
speciescontracta()

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