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Taxonomy
Bellefontia acuminiferentis was named by Ross (1951) [Questionably assigned to this genus by author. Paratypes: YPM 18320, 18348, 18157, 18163, 18338-9, 18370]. Its type specimen is YPM 18347, a pygidium, and it is a 3D body fossil.
It was recombined as Xenostegium acuminiferentis by Hintze (1953).
It was recombined as Xenostegium acuminiferentis by Hintze (1953).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Bellefontia acuminiferentis Ross p. 99 figs. Pl. 24, fig. 8 |
| 1953 | Xenostegium acuminiferentis Hintze p. 241 figs. Plate V, figs. 19-24 |
| 1993 | Bellefontia acuminiferentis Westrop et al. p. 1628 |
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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.
†Bellefontia acuminiferentis Ross 1951
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Hendy 2009, Aberhan et al. 2004 | |||||
Age range: base of the Gasconadian to the top of the Skullrockian or 485.40000 to 482.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Skullrockian | USA (Utah) | Xenostegium acuminiferentis (104173) | |
| Gasconadian | USA (Utah) | Bellefontia acuminiferentis (103786 103913) | |
| Gasconadian | USA (Idaho) | Bellefontia acuminiferentis (103826 103827) |