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Rachiosoma mortoni
Taxonomy
Cyphosoma mortoni was named by de Loriol (1887). It is a 3D body fossil. Its type locality is USGS Mesozoic 16242, Wahalak, which is in a Maastrichtian carbonate chalk in Mississippi.
It was recombined as Coptosoma mortoni by Clark and Twitchell (1915); it was recombined as Rachiosoma mortoni by Cooke (1953).
It was recombined as Coptosoma mortoni by Clark and Twitchell (1915); it was recombined as Rachiosoma mortoni by Cooke (1953).
Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Cyphosoma mortoni de Loriol |
| 1915 | Coptosoma mortoni Clark and Twitchell p. 62 |
| 1953 | Rachiosoma mortoni Cooke p. 9 figs. Pl 1, figs 12,13 |
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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.
†Rachiosoma mortoni de Loriol 1887
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subo = suborder, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992, Kiessling 2004 | |||||
Age range: base of the Late/Upper Maastrichtian to the top of the Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | USA (Mississippi) | Cyphosoma mortoni (123370) | |
| Early/Lower Maastrichtian | USA (Alabama) | Rachiosoma mortoni (78103) | |
| Late/Upper Maastrichtian | USA (Mississippi) | Rachiosoma mortoni (4167) |