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Logania taiti
Taxonomy
Thelodus taiti was named by Stetson (1931). It is the type species of Thelodus, Shielia.
It was recombined as Logania taiti by Turner and Turner (1974); it was recombined as Shielia taiti by Märss and Ritchie (1998).
It was recombined as Logania taiti by Turner and Turner (1974); it was recombined as Shielia taiti by Märss and Ritchie (1998).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Thelodus taiti Stetson |
| 1974 | Logania taiti Turner and Turner pp. 187 - 189 figs. 4A-B |
| 1998 | Shielia taiti Märss and Ritchie |
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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.
†Logania taiti Stetson 1931
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Turner and S. Turner 1974 | The head scales are small and rounded with crenulated edges, resembling those of L. martinssoni. The transitional scales are more oak-leaf like in shape and become more diamond shaped with side notches anteriorly, resembling small scales of Katoporus species or Logania kummerowi Gross (Gross 1967). The body scales, as noted, can resemble those of Tu. pagei, and some are like those of L. cuneata. The rather specialised scales found on the articulated specimens from Scotland, with up to five posterior spines (Stetson 1931) have not been found. Probably they were too delicate and broke up easily. |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Carroll 1988, Kiessling 2004 | |||||
Age range: Rootsikula or 428.60000 to 426.70000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rootsikula | Norway | Logania taiti (14308) |