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Taxonomy
Lingulepis was named by Hall (1863) [Sepkoski's age data: Cm Atda-u O Trem]. Its type is Lingula pinnaformis.
It was reranked as Obolus (Lingulepis) by Walcott (1905); it was reranked as Lingulella (Lingulepis) by Walcott (1912) and Poulsen (1932).
It was assigned to Obolus by Walcott (1905); to Lingulella by Walcott (1912) and Poulsen (1932); to Lingulinae by Jin et al. (1993); to Obolinae by Williams et al. (2000); and to Lingulida by Sepkoski (2002).
It was reranked as Obolus (Lingulepis) by Walcott (1905); it was reranked as Lingulella (Lingulepis) by Walcott (1912) and Poulsen (1932).
It was assigned to Obolus by Walcott (1905); to Lingulella by Walcott (1912) and Poulsen (1932); to Lingulinae by Jin et al. (1993); to Obolinae by Williams et al. (2000); and to Lingulida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1863 | Lingulepis Hall |
| 1905 | Obolus (Lingulepis) Walcott p. 333 |
| 1912 | Lingulella (Lingulepis) Walcott p. 544 |
| 1932 | Lingulella (Lingulepis) Poulsen p. 13 |
| 1993 | Lingulepis Jin et al. p. 794 |
| 2000 | Lingulepis Williams et al. p. 50 |
| 2002 | Lingulepis Sepkoski |
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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. †Lingulepis Hall 1863
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†Lingulella (Lingulepis) acuminata Conrad 1839
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Invalid names: Lingulepis antiqua Emmons 1842 [synonym]
†Lingulella (Lingulepis) acuminata sequens Walcott 1908
†Lingulella (Lingulepis) rowei Walcott 1905
†Lingulepis acutangulus Roemer 1849
†Lingulepis maera Hall and Whitfield 1877
†Lingulepis nabis Walcott 1924
†Lingulepis pinnaformis Owen 1852
†Lingulepis tenuilineata Poulsen 1937
†Obolus (Lingulepis) eros Walcott 1905
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams et al. 2000 | Shell strongly acuminate, subtriangular, unequivalved; ventral beak strongly elongate; pseudointerarea elongate triangular, with narrow pedicle groove and flexure lines; dorsal pseudointerarea poorly known; ventral visceral area short, not extending to midvalve; dorsal visceral area slightly thickened, extending to midvalve, bisected by two divergent ridges; ventral vascula lateralia strongly arcuate. |