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Mabella conferta
Taxonomy
Leptellina conferta was named by Popov (1985) [Leptellina? conferta]. Its type specimen is CNIGR 17/11989 and is a 3D body fossil.
It was recombined as Wiradjuriella conferta by Percival (1991); it was recombined as Mabella conferta by Popov et al. (2002).
It was recombined as Wiradjuriella conferta by Percival (1991); it was recombined as Mabella conferta by Popov et al. (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1985 | Leptellina conferta Popov p. 56 figs. pl. 2, figs 1–6, text-figs 1, 2. |
| 1991 | Wiradjuriella conferta Percival p. 140 |
| 2002 | Mabella conferta Popov et al. p. 43 figs. Pl. 5, figs 19–29 |
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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.
†Mabella conferta Popov 1985
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. E. Popov et al. 2002 | Shell concavoconvex, transverse, semioval in outline, length about three-quarters of the width, with maximum width at the hinge line. Anterior commissure rectimarginate. Ventral valve strongly convex in transverse and lateral profiles with the maximum thickness slightly posterior to mid-length. Planar strongly apsacline interarea and small, convex pseudodeltidium. Dorsal valve gently concave to almost flat, with a planar, anacline interarea and disjunct chilidial plates. Radial ornament very fine, unequally parvicostellate, with up to five accentuated parvicostellae per 3 mm along the anterior margin of mature specimens.
Ventral interior with strong teeth lacking dental plates. Cordate muscle field with short, ridge-like adductor scars completely separating strongly impressed diductor scars. Strong, slightly divergent, saccate mantle canals. Dorsal interior with low, trifid cardinal process facing posteriorly, short socket ridges subparallel to the hinge line. Lophophore platform about 90% valve length and 87% as wide as maximum valve width, bordered by a high, ridge-like rim divided medially. High median septum about three-quarters as long as the valve, not joined anteriorly with the subperipheral rim. |
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Hendy 2009, Aberhan et al. 2004 | |||||
Age range: base of the Longvillian to the top of the Sandbian or 457.20000 to 453.00000 Ma
Collections (19 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sandbian | Kazakhstan | Mabella conferta (80271) | |
| Caradoc | Kazakhstan | Mabella conferta (80181 80215 80222 80256 80261 80263 80264 80265 80266 80268 80269 80270 80274 80275 80276 80281) | |
| Longvillian - Onnian | Kyrgyzstan (Tien Shan) | Mabella conferta (72308 72309) |