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Semicytherura argentinensis
Taxonomy
Cytherura argentinensis was named by Bertels (1974). It is a 3D body fossil. Its type locality is Northern Cuchilla West Sample NCW-12, which is in a Maastrichtian marginal marine claystone in the Jagüel Formation of Argentina.
It was recombined as Semicytherura argentinensis by Ceolin et al. (2015).
It was recombined as Semicytherura argentinensis by Ceolin et al. (2015).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Cytherura argentinensis Bertels |
| 2015 | Semicytherura argentinensis Ceolin et al. |
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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.
†Semicytherura argentinensis Bertels 1974
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Bertels 1974 | Cytherura with irregularly disposed riblets, although most of them follow a longitudinal pattern, and with small pits. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Jell and Adrain 2002, Kiessling 2004 | |||||
Age range: base of the Maastrichtian to the top of the Danian or 72.20000 to 61.66000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Maastrichtian | Argentina (Neuquén) | Cytherura argentinensis (type locality: 93947) | |
| Maastrichtian - Danian | Argentina (Rio Negro) | Cytherura argentinensis (236601) | |
| Danian | Argentina (Neuquén) | Semicytherura argentinensis (231999) |