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Glyptorthis insculpta
Taxonomy
Orthis insculpta was named by Hall (1847). Its type specimen is AMNH 30260, a shell, and it is a 3D body fossil. It is the type species of Glyptorthis.
It was recombined as Hebertella insculpta by Hall and Clarke (1882); it was recombined as Hebertella (Glyptorthis) insculpta by Ladd (1929); it was recombined as Glyptorthis insculpta by Foerste (1914), Foerste (1924), Howe (1966), Li and Copper (2006), Zuykov and Butts (2008), Rubel (2011), Wright and Stigall (2014) and Liljeroth et al. (2017).
It was recombined as Hebertella insculpta by Hall and Clarke (1882); it was recombined as Hebertella (Glyptorthis) insculpta by Ladd (1929); it was recombined as Glyptorthis insculpta by Foerste (1914), Foerste (1924), Howe (1966), Li and Copper (2006), Zuykov and Butts (2008), Rubel (2011), Wright and Stigall (2014) and Liljeroth et al. (2017).
Synonymy list
| Year | Name and author |
|---|---|
| 1882 | Hebertella insculpta Hall and Clarke figs. pl. 5a, fig. 13 |
| 1914 | Glyptorthis insculpta Foerste p. 257 |
| 1924 | Glyptorthis insculpta Foerste |
| 1929 | Hebertella (Glyptorthis) insculpta Ladd p. 399 |
| 1966 | Glyptorthis insculpta Howe figs. pl. 28, fig. 21 |
| 2006 | Glyptorthis insculpta Li and Copper p. 11 |
| 2008 | Glyptorthis insculpta Zuykov and Butts figs. 1-6 |
| 2011 | Glyptorthis insculpta Rubel |
| 2014 | Glyptorthis insculpta Wright and Stigall p. 896 fig. 2A–E |
| 2017 | Glyptorthis insculpta Liljeroth et al. |
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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.
†Glyptorthis insculpta Hall 1847
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†Glyptorthis insculpta manitoulinensis Foerste 1924
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. F. Wright and A. L. Stigall 2014 | Large (character 1, width 20.24–25.69 mm) species of Glyptorthis with a subquadrate outline and fine concentric ornamentation weakly to strongly lamellose. Costal density low to moderate (see Online Supplementary Material Tables 2 and 4, character 11); ventral muscle scars large with lateral and anterior deflections; narrowing near the teeth. Ventral diductor scars separated by a medial septum; adductor scars of variable width, widening towards the anterior. Dorsal cardinal area high (character 31, Online Supplementary Material Table 2), extending over the hinge line; umbonal angle less than 150˚. |