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Betelgeusia exposita
Taxonomy
Betelgeusia exposita was named by Blake and Jagt (2005). It is not extant. Its type specimen is Holotype NHMM K 3364.
Synonymy list
| Year | Name and author |
|---|---|
| 2005 | Betelgeusia exposita Blake and Jagt pp. 187-189 figs. pl. 3 figs. 1-5 |
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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.
†Betelgeusia exposita Blake and Jagt 2005
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. B. Blake and J.W.M. Jagt 2005 | Betelgeusia with a rounded body margin that largely results from a rounded margin to the superomarginals. Actinal and inferomarginal series not corresponding; mouth angle pair robust, forming a keel-shaped, broad, angular surface. Prominent ventral spines not recognized. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Blake 1990, Aberhan 1992 | |||||
Age range: base of the Late/Upper Maastrichtian to the top of the Danian or 72.20000 to 61.66000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Maastrichtian - Danian | Netherlands | Astropectinidae indet. (32160) |