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Rhagasostoma aralense
Taxonomy
Rhagasostoma aralense was named by Koromyslova et al. (2018). Its type specimen is TsNIGR Museum 26/12582 and is a 3D body fossil. Its type locality is Southern Aral Sea region (C. temirensis/B. decoratus zone), which is in a Campanian marine horizon in Uzbekistan.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2018 | Rhagasostoma aralense Koromyslova et al. figs. Fig, 10, Table 5 |
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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.
†Rhagasostoma aralense Koromyslova et al. 2018
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. V. Koromyslova et al. 2018 | Colonies erect, bifoliate. Autozooids subrectangular; gymnocyst lacking; cryptocyst extensive with proximolateral peripheral caverns; opesiae terminal, semielliptical without shelf in the distal part, proximal edge crenulated with small, roundish opesiules; ovicells endozooidal. Avicularia interzooidal, larger than autozooids; rostrum channeled with pointed top, conical in outline, almost symmetrical; proximal part rounded, shorter and wider than rostrum; opesia egg-shaped with thin articular ridges bearing two short teeth proximally and an opesiular indentation between the teeth; opesiules lacking. Kenozooids at the margins of a colony, roundish, with small opesia. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class, uc = unranked clade | |||||
| References: Smith et al. 2006, Nesnidal et al. 2013 | |||||
Age range: Late/Upper Campanian or 83.60000 to 72.20000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Campanian | Uzbekistan (Karakalpakstan) | Rhagasostoma aralense (type locality: 216936) | |
| Late/Upper Campanian | Uzbekistan (Karakalpakstan) | Rhagasostoma aralense (216937) |