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Chomataster acules
Taxonomy
Chomataster acules was named by Spencer (1913). It is not extant. Its type specimen is Natural History Musem, London, holotype BNHM E 13255, paratypes BNHM E13256-59,. It is the type species of Chomataster. It was considered monophyletic by Breton (1992).
Synonymy list
| Year | Name and author |
|---|---|
| 1913 | Chomataster acules Spencer p. 128 figs. pl. 12, fig. 28, 31; pl. 16, fig. 8-13 |
| 1943 | Chomataster acules Brünnich-Nielsen p. 59 figs. fig. 12 |
| 1945 | Chomataster acules Rasmussen p. 422 figs. pl. 9, fig. 10-11 |
| 1950 | Chomataster acules Rasmussen pp. 79-80 figs. fig. 6e; pl. 10, fig. 12 |
| 1953 | Chomataster acules Müller p. 59 figs. pl. 7, fig. qq1-3 |
| 1971 | Chomataster acules Schulz and Weitschat p. 119 figs. pl. 25, fig. 19 |
| 1975 | Chomataster acules Schulz and Weitschat pp. 279-280 figs. pl. 31, fig. 8-10 |
| 1979 | Chomataster acules Rasmussen p. 70 |
| 1987 | Chomataster acules Gale p. 174 figs. pl. 5, fig. 15-16 |
| 1989 | Chomataster acules Gale p. 286 figs. fig. 5 |
| 1992 | Chomataster acules Breton p. 263 |
| 1993 | Chomataster acules Lewis p. 51 |
| 1994 | Chomataster acules Jagt et al. p. 318 |
| 2000 | Chomataster acules Jagt p. 418 figs. pl. 14 |
| 2002 | Chomataster acules Reich and Frenzel p. 182 |
| 2021 | Chomataster acules Jagt et al. p. 6 |
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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.
†Chomataster acules Spencer 1913
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. S. Gale 1987 | Median superomarginals, tall, narrow, lateral face vertical. Single large crater shaped spine pit at summit of lateral face. Inferomarginals possess broad, rounded oral surface, intermarginal facet narrow, 3-5 large crater shaped pits on oral face. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Aberhan 1992, Blake 1990, Aberhan et al. 2004 | |||||
Age range: base of the Late/Upper Campanian to the top of the Danian or 83.60000 to 61.66000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | Belgium (Liege) | Chomataster acules (32147 32150) | |
| Early/Lower Maastrichtian | Germany (Mecklenburg-Vorpommern) | Chomataster acules (32022) | |
| Early/Lower Maastrichtian | Belgium (Liege) | Chomataster acules (32148 32151 32158) | |
| Late/Upper Maastrichtian | Netherlands (Limburg) | Chomataster acules (32159) | |
| Late/Upper Maastrichtian | Belgium (Liege) | Chomataster acules (32149 32153 32154 32156 32157) | |
| Late/Upper Maastrichtian | Netherlands | Chomataster acules (32161 32177 32179) | |
| Late/Upper Maastrichtian - Maastrichtian | Netherlands | Chomataster acules (32162) | |
| Late/Upper Maastrichtian - Danian | Poland | Chomataster acules (64008) | |
| Danian | Denmark | Chomataster acules (89866) |