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Uzunbulakia rugosa
Taxonomy
Uzunbulakia rugosa was named by Nikitina et al. (2006). Its type specimen is USNM 485142, a valve (ventral internal mould), and it is a 3D body fossil. Its type locality is Locality 219. Uzunbulak Sector, which is in an Abereiddian marine sandstone in the Uzunbulak Formation of Kazakhstan. It is the type species of Uzunbulakia.
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Uzunbulakia rugosa Nikitina et al. p. 180 figs. 23.B; 24.1–4 |
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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.
†Uzunbulakia rugosa Nikitina et al. 2006
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| O. I. Nikitina et al. 2006 | Shell concavoconvex; anterior commissure rectimarginate; pseudodeltidium present; notothyrial covering indistinct. Radial ornament finely multicostellate, divided into four sectors by a median costa and two costa-like grooves radiating at 45° from the median rib; concentric ornament of regular oblique rugellae inclined to the posterior margin. Ventral interior with wide, short teeth lacking dental plates; small, bilobed muscle field and thin subperipheral rim. Dorsal interior with short socket plates subparallel to hinge and a short notothyrial platform. Cardinal process small, simple, bulbous. Median ridge low and broad, originating in front of notothyrial platform, becoming double-crested at junction with medial margins of subperipheral rim bordering the dorsal platform. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: Abereiddian or 468.00000 to 461.10000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Abereiddian | Kazakhstan | Uzunbulakia rugosa (165556 type locality: 165596) |