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Trichasteropsis senfti
Taxonomy
Trichasteropsis senfti was named by Eck (1879). It is not extant. Its type specimen is Holotype MB.E. 776, Museum für Naturkunde Berlin.
Synonymy list
| Year | Name and author |
|---|---|
| 1879 | Trichasteropsis senfti Eck p. 253 figs. pl. 4 fig. 4 |
| 2003 | Trichasteropsis senfti Blake and Hagdorn p. 42 figs. Fig. 3 |
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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.
†Trichasteropsis senfti Eck 1879
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. B. Blake and H. Hagdorn 2003 | Trichasteropsid with arms elongate and only gradually tapering. Arm tip rounded in larger (R greater than -50 mm) specimens but probably proportionately more pointed in smaller (to at least R -35 ram) individuals. Tips heavily armored, distal marginals weakly enlarged. Marginals abutted throughout the length of the arm, although ossicles tapered dorsally with partial intercalation of abactinals and accessories. Longest actinal row perhaps adjacent to the adambulacral series, other series somewhat irregular. Actinal spines flattened. Ambulacral column not compressed (adambulacrals and ambulacrals
considered plesiomorphic for crown group. |