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Dinorthis anticostiensis
Taxonomy
Orthis anticostiensis was named by Shaler (1865) [Four syntypes, MCZ147679–147682, are in Shal- er’s original collection from “Ellis Bay, west end of An- ticosti” (Shaler 1865, p. 66, and original label). Specimen MCZ147679, a complete shell with fine surface ornament preserved, is selected herein as the lectotype (Pl. 4, figs. 1–6). Paralectotype MCZ147680 is also well preserved (Pl. 4, figs. 7–13), but the other two were originally cut.]. Its type specimen is MCZ 147679-147682, a shell, and it is a 3D body fossil.
It was corrected as Orthis porcata by Billings (1862); it was recombined as Dinorthis anticostiensis by Twenhofel (1928); it was recombined as Plaesiomys anticostiensis by Schuchert and Cooper (1932), Bolton (1972), Jin and Zhan (2008) and Wright and Stigall (2013).
It was corrected as Orthis porcata by Billings (1862); it was recombined as Dinorthis anticostiensis by Twenhofel (1928); it was recombined as Plaesiomys anticostiensis by Schuchert and Cooper (1932), Bolton (1972), Jin and Zhan (2008) and Wright and Stigall (2013).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1862 | Orthis porcata Billings p. 135 figs. fig. 111 |
1928 | Dinorthis anticostiensis Twenhofel p. 183 figs. pl. 18, figs. 15, 16. |
1932 | Plaesiomys anticostiensis Schuchert and Cooper p. 94 |
1972 | Plaesiomys anticostiensis Bolton p. 28 figs. pl. 4, figs. 3, 20 |
2008 | Plaesiomys anticostiensis Jin and Zhan pp. 18 - 21 figs. Pl. 4, figs. 1–13; Pl. 5, figs. 1–23; Pl. 6, figs. 1–16; Pl. 7, figs. 1–15; Pl. 8, figs. 1–11; Figs. |
2013 | Plaesiomys anticostiensis Wright and Stigall p. 1113 |
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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.
†Dinorthis anticostiensis Shaler 1865
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Invalid names: Orthis porcata Shaler 1865 [replaced]
Diagnosis
No diagnoses are available