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Retusa
Taxonomy
Retusa was named by Brown (1827) [Sepkoski's age data: J Bath R]. It is extant.
It was assigned to Tornatinidae by Martin (1904); to Cephalaspida by Sepkoski (2002); and to Retusidae by Kendrick (1990) and Wienrich and Janssen (2007).
It was assigned to Tornatinidae by Martin (1904); to Cephalaspida by Sepkoski (2002); and to Retusidae by Kendrick (1990) and Wienrich and Janssen (2007).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1827 | Retusa Brown |
| 1904 | Retusa Martin p. 135 |
| 1990 | Retusa Kendrick p. 43 |
| 2002 | Retusa Sepkoski |
| 2007 | Retusa Wienrich and Janssen p. 778 |
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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.
G. Retusa Brown 1827
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Subg. Retusa (Coleophysis) Fischer 1883
Subg. Retusa (Cylichnina) Monterasato 1884
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†Cylichnina coelata Deshayes 1862
†Cylichnina petrosa Conrad 1848
†Cylichnina tantilla Anderson and Hanna 1925
†Cylichnina turneri Effinger 1938
†Retusa (Cylichnina) aequiattenuata Eames 1952
†Retusa (Cylichnina) conutus Deshayes 1824
†Retusa (Cylichnina) marylandica Martin 1904
†Retusa (Cylichnina) subspissa Conrad 1848
Retusa bizona Adams 1850
†Retusa claibornensis Aldrich 1911
Retusa obtusa Montagu 1808
†Retusa recta Eames 1952
†Retusa truncatula Bruguiere 1792
†Retusa yaquensis Maury 1917
Diagnosis
No diagnoses are available