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Hyrachyus modestus
Taxonomy
Lophiodon modestus was named by Leidy (1870). It is a 3D body fossil. Its type locality is Smith's Fork, which is in a Bridgerian terrestrial horizon in the Bridger Formation of Wyoming.
It was recombined as Isectolophus modestus by Matthew (1909); it was recombined as Hyrachyus modestus by Leidy (1871), Leidy (1873), Hay (1902), Troxell (1922), Wood (1934), Radinsky (1967), Gazin (1976), Schoch (1989), McCarroll et al. (1996) and Colbert and Schoch (1998).
It was recombined as Isectolophus modestus by Matthew (1909); it was recombined as Hyrachyus modestus by Leidy (1871), Leidy (1873), Hay (1902), Troxell (1922), Wood (1934), Radinsky (1967), Gazin (1976), Schoch (1989), McCarroll et al. (1996) and Colbert and Schoch (1998).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1870 | Lophiodon modestus Leidy p. 109 |
1871 | Hyrachyus agrestis Leidy |
1871 | Hyrachyus modestus Leidy |
1871 | Hyrachyus agrarius Leidy p. 229 |
1871 | Lophiodon bairdianus Marsh p. 36 |
1871 | Lophiodon affinis Marsh p. 37 |
1872 | Hyrachyus affinis Leidy |
1872 | Hyrachyus bairdianus Leidy |
1873 | Hyrachyus agrarius Cope p. 6 |
1873 | Hyrachyus agrarius Leidy p. 60 |
1873 | Hyrachyus modestus Leidy p. 67 |
1873 | Colonoceras agrestis Marsh p. 407 |
1878 | Hyrachyus crassidens Osborn et al. |
1902 | Hyrachyus affinis Hay p. 638 |
1902 | Hyrachyus agrarius Hay p. 638 |
1902 | Colonoceras agrestis Hay p. 639 |
1902 | Hyrachyus modestus Hay p. 639 |
1909 | Isectolophus modestus Matthew |
1922 | Hyrachyus affinis Troxell |
1922 | Hyrachyus agrestis Troxell |
1922 | Hyrachyus bairdianus Troxell |
1922 | Hyrachyus modestus Troxell |
1922 | Metahyrachyus bicornutus Troxell |
1922 | Colonoceras agrestis Troxell p. 31 figs. 1 - 3 |
1922 | Metahyrachyus bicornutus Troxell p. 33 figs. 4, 5 |
1922 | Hyrachyus agrarius Troxell p. 40 |
1934 | Ephyrachyus cristalophus Wood |
1934 | Hyrachyus affinis Wood |
1934 | Hyrachyus modestus Wood |
1967 | Hyrachyus modestus Radinsky |
1976 | Hyrachyus affinis Gazin |
1976 | Hyrachyus modestus Gazin |
1984 | Hyrachyus bicornutus Schoch |
1989 | Hyrachyus modestus Schoch |
1990 | Hyrachyus affinis Emry |
1996 | Hyrachyus modestus McCarroll et al. |
1998 | Hyrachyus affinis Colbert and Schoch |
1998 | Hyrachyus bicornutus Colbert and Schoch |
1998 | Hyrachyus modestus Colbert and Schoch |
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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.
†Hyrachyus modestus Leidy 1870
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Invalid names: Colonoceras agrestis Marsh 1873 [synonym], Ephyrachyus cristalophus Wood 1934 [synonym], Hyrachyus agrarius Leidy 1871 [synonym], Hyrachyus agrestis Leidy 1871 [synonym], Hyrachyus crassidens Osborn et al. 1878 [synonym], Lophiodon affinis Marsh 1871 [synonym], Lophiodon bairdianus Marsh 1871 [synonym], Metahyrachyus bicornutus Troxell 1922 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: subo = suborder, subc = subclass, c = class, subp = subphylum | |||||
References: Lillegraven 1979, Ji et al. 2002, Carroll 1988, Hendy et al. 2009, Colbert and Schoch 1998 |
Age range: base of the Wasatchian to the top of the Lutetian or 55.80000 to 41.30000 Ma
Collections (46 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Wasatchian | USA (Wyoming) | Hyrachyus modestus (15710 15839) | |
Wasatchian - Bridgerian | USA (Wyoming) | Hyrachyus modestus (15463) | |
Bridgerian | USA (California) | Hyrachyus sp. (16422) | |
Bridgerian | USA (Texas) | Hyrachyus sp. (16195) | |
Bridgerian | USA (Colorado) | Hyrachyus modestus (16239 16240 16242) | |
Bridgerian | USA (Nevada) | Hyrachyus affinis, Hyrachyus modestus (16218) | |
Bridgerian | USA (Wyoming) | Hyrachyus affinis (16193 16194 16226 16234 16275 16281 16283) Hyrachyus affinis, Hyrachyus agrarius, Hyrachyus modestus (16228) Hyrachyus affinis, Hyrachyus modestus (16205 16284) Hyrachyus agrarius (106325) Hyrachyus agrestis (16136) Hyrachyus modestus (16198 16201 16213 16219 16227 16232 16290 16292 16409 16418 16483 16484 16491 16493 16502 16647 202160 202163) Lophiodon modestus (type locality: 16414) | |
Bridgerian | USA (Utah) | Hyrachyus modestus (16396) | |
Lutetian | Jamaica | Hyrachyus sp. (5241) | |
Middle Eocene | China (Shandong) | Hyrachyus modestus (175581 175583) | |
Middle Eocene | USA (Wyoming) | Hyrachyus agrarius (81455) | |
Early/Lower Uintan | USA (Texas) | Hyrachyus modestus (16586) |