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Cleiothyridina anabathra
Taxonomy
Cleiothyridina anabathra was named by Waterhouse (1968) [Decorticated valve]. Its type specimen is NZGS BR 1389, a valve (Ventral valve), and it is a mold. Its type locality is GS9697, Letham Burn (D44/f9001), which is in a Wordian marine horizon in the Mangarewa Formation of New Zealand.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Cleiothyridina anabathra Waterhouse p. 12 figs. Pl 1, figs 1-5,7,8,10 |
| 1982 | Cleiothyridina anabathra Waterhouse p. 53 figs. Pl 12f,h,13h,i |
| 1987 | Cleiothyridina anabathra Waterhouse p. 4 figs. Pl 1, figs 4,6,7 |
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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.
†Cleiothyridina anabathra Waterhouse 1968
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. B. Waterhouse 1987 | Medium-sized Cleiothyridina, most individuals slightly transverse, some oval in shape, with moderately prominent ventral umbo, posterior walls concave in outline. Dorsal valve not strongly inflated, bearing median swelling or rarely low fold, with shallow median sinus. Ventral valve rarely sulcate, sometimes with shallow median sinus. Spines numerous and fine posteriorly, 5 per mm, diminishing to 2 per mm anteriorly |
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 7.38 | 4.70 | 10.0 | 8.00 | 2.34 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Wordian to the top of the Wuchiapingian or 266.90000 to 254.14000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wordian | New Zealand (Southland) | Cleiothyridina anabathra (type locality: 41796) | |
| Wuchiapingian | Australia (Queensland) | Cleiothyridina anabathra (120538 120659) Cleiothyridina sp. (97269) |