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Sinuites (Sinuites) usitatus
Taxonomy
Sinuites (Sinuites) usitatus was named by Isakar (1991). Its type specimen is TÜG 2/3, a shell, and it is a 3D body fossil.
It was recombined as Sinuites usitatus by Ebbestad and Yochelson (2000) and Wagner (2023).
It was recombined as Sinuites usitatus by Ebbestad and Yochelson (2000) and Wagner (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1991 | Sinuites (Sinuites) usitatus Isakar pp. 49 - 50 figs. pl. 4 f. 1-4; pl. 5 f. 1-6 |
| 2000 | Sinuites usitatus Ebbestad and Yochelson pp. 192 - 194 figs. f. 5a-i |
| 2023 | Sinuites usitatus Wagner p. 2899 |
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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.
†Sinuites (Sinuites) usitatus Isakar 1991
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Isakar 1991 | Globose, whorl strongly involuted — last whorl enviloping earlier ones so that height of apreture corresponds to that of shell. In the specimens with have preserved the origin shell material closed umbilicus (PI. V, fig, 6). Narrow umbilicus is visible on internal mold only. Dorsal part of the body whorl roundly arched, sinus shallow, U-shaped. The aperture wide, about twice as wide as high. Interior of shell with some strong wrinkles, well developed on dorsal part (PI. IV, fig. 4). Specimens preserving the shell are everywhere rare. These shows, that the perfect shell was ornamented with fine concentric growth lines (18-19 lines on 2 mm) (PI. V, fig. 4) and even revolving lines, which surrounded the umbilical region. Growth lines traced sinus. Musculature unknown. |