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Glyptorthis fausta
Taxonomy
Orthis fausta was named by Foerste (1887). Its type specimen is USNM 84829 and is a 3D body fossil. Its type locality is Soldier’s Home, 2.5 miles west of Dayton, which is in an Aeronian carbonate limestone in the Brassfield Formation of Ohio.
It was recombined as Glyptorthis fausta by Schuchert and Cooper (1932), Wright and Stigall (2014).
It was recombined as Glyptorthis fausta by Schuchert and Cooper (1932), Wright and Stigall (2014).
Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Orthis fausta Foerste p. 85 figs. pl. 13, figs 15a–d, 16a, b. |
| 1932 | Glyptorthis fausta Schuchert and Cooper p. 90 figs. pl. 5, figs 4, 7, 8 |
| 2014 | Glyptorthis fausta Wright and Stigall p. 896 figs. 1D-H |
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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 fausta Foerste 1887
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. F. Wright and A. L. Stigall 2014 | Shell moderate to large size (character 1, width 19.43–22.13 mm); outline subrectangular with the width much greater than length. Ventral valve thin with shallow sulcus. Ventral muscle scars narrow, with anterior and lateral deflections; ventral adductors emplaced onto a raised platform. Ventral interarea low; long posterior extension of the ventral umbo across the hinge line. |