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Helaletes intermedius
Taxonomy
Hyrachyus intermedius was named by Osborn et al. (1878).
It was synonymized subjectively with Hyrachyus implicatus by Hay (1902); it was synonymized subjectively with Hyrachyus affinis by Troxell (1922); it was recombined as Chasmotheroides intermedius by Wood (1934); it was recombined as Desmatotherium intermedius by Schoch (1989) and Colbert and Schoch (1998); it was recombined as Helaletes intermedius by Radinsky (1963), Gazin (1976) and Dawson and Constenius (2018).
It was synonymized subjectively with Hyrachyus implicatus by Hay (1902); it was synonymized subjectively with Hyrachyus affinis by Troxell (1922); it was recombined as Chasmotheroides intermedius by Wood (1934); it was recombined as Desmatotherium intermedius by Schoch (1989) and Colbert and Schoch (1998); it was recombined as Helaletes intermedius by Radinsky (1963), Gazin (1976) and Dawson and Constenius (2018).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1878 | Hyrachyus intermedius Osborn et al. p. 51 |
| 1878 | Hyrachyus intermedius Osborn and et al. |
| 1883 | Desmatotherium guyotii Scott p. 46 |
| 1902 | Helaletes guyotii Hay p. 625 |
| 1919 | Desmatotherium guyotii Peterson p. 127 |
| 1922 | Helaletes guyotii Troxell |
| 1923 | Desmatotherium guyotii Osborn p. 2 |
| 1934 | Chasmotheroides intermedius Wood |
| 1963 | Helaletes intermedius Radinsky |
| 1976 | Helaletes intermedius Gazin |
| 1989 | Desmatotherium intermedius Schoch |
| 1998 | Desmatotherium intermedius Colbert and Schoch p. 574 |
| 2018 | Helaletes intermedius Dawson and Constenius p. 53 |
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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.
†Helaletes intermedius Osborn et al. 1878
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Invalid names: Desmatotherium guyotii Scott 1883 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: superf = superfamily, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009, Colbert and Schoch 1998, Ji et al. 2002, Lillegraven 1979 | |||||
Age range: base of the Bridgerian to the top of the Uintan or 50.30000 to 39.70000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bridgerian | USA (Wyoming) | Desmatotherium guyotii (16212) Helaletes intermedius (16138 16279 16413) | |
| Uintan | USA (Montana) | Helaletes intermedius (222919) |