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Orthotheca buelna
Taxonomy
Orthotheca buelna was named by Lochman (1952). Its type specimen is U.S.N.M. No.115662a, a shell, and it is a mold.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1952 | Orthotheca buelna Lochman p. 84 figs. 4-5 |
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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.
†Orthotheca buelna Lochman 1952
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. Lochman 1952 | This species is represented by two specimens, both internal limestone molds, lying close together on the same piece of rock. They have been referred to Orthotheca rather than Hyolithes because of their apparently circular cross section, more tapered shape, and horizontal aperture. They cannot, however, be identified with any of the described species of Orthotheca from the Lower Cambrian, all of which occur in the Atlantic Province. These species differ from O. buelna in their less-tapered shape and much smaller apical angle. |
Measurements
No measurements are available
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| Source: g = genus, p = phylum | |||||
| References: Hendy et al. 2009, d'Eichwald 1840 | |||||