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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Metopaster alexiae
Taxonomy
Metopaster alexiae was named by Jagt (2000). It is not extant. Its type specimen is Holotype MHMM MB 377-23/e, paratypes MHMM MB 377-23/c-d.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Metopaster alexiae Jagt pp. 394-395 figs. pl. 9 fig. 8-11, pl. 26 fig. 3, 15-16 |
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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.
†Metopaster alexiae Jagt 2000
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. W. M. Jagt 2000 | Marginals with narrow depressed border, and central area with large, circular granule pits; furrow-grown ultimate superomarginals have two, (sub)equal wart-like protuberances, the position of which varies slightly, and correspond to six inferomarginals. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992, Blake 1990 | |||||
Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Maastrichtian | Netherlands (Limburg) | Metopaster alexiae (32167) | |
| Late/Upper Maastrichtian - Danian | Netherlands | Metopaster alexiae (32160) |