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† Hyrachyus modestus (Hyrachyus bicornutus)
Hyrachyus modestus

Additional Functions

Grouping

Belong­ing to

 Gaeabionta  ⇒ Domäne: Eukaryota  ⇒ Reich: Animalia  ⇒ Mittelreich: Eumetazoa  ⇒ Klade: Triploblastica  ⇒ Klade: Nephrozoa  ⇒ Abzweig: Deuterostomia  ⇒ Stamm: Chordata  ⇒ Unterstamm: Vertebrata  ⇒ Infrastamm: Gnathostomata  ⇒ Superklasse: Tetrapoda  ⇒ Klasse: Mammalia  ⇒ Unterklasse: Theriiformes  ⇒ Infraklasse: Holotheria  ⇒ Superlegion: Trechnotheria  ⇒ Legion: Cladotheria  ⇒ Sublegion: Zatheria  ⇒ Infralegion: Tribosphenida  ⇒ Superkohorte: Theria  ⇒ Unterklasse: Eutheria  ⇒ Überordnung: Laurasiatheria  ⇒ Ordnung: Perissodactyla  ⇒ Klade: Tapiromorpha  ⇒ Klade: Ceratomorpha  ⇒ Überfamilie: Rhinocerotoidea  ⇒ Familie: Hyrachyidae  ⇒ Gattung: Hyrachyus

Taxo­nomic seg­ment

Art

This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.

Name from

Corre­spond­ing author (Name, Year)

Leidy, 1870

Other languages

scientific

Hyrachyus modestus

Alternative Name

scientific

Colonoceras agrestis

Marsh, 1873
Ref.: O. C. Marsh. 1873. Notice of new Tertiary mammals. American Journal of Science 5(29):407-410

scientific

Ephyrachyus cristalophus

Wood, 1934
Ref.: H. E. Wood. 1934. Revision of the Hyrachyidae. Bulletin of the American Museum of Natural History 67(5):181-295

scientific

Hyrachyus affinis

Marsh, 1871
Ref.: O. C. Marsh. 1871. Notice of some new fossil mammals from the Tertiary Formation. American Journal of Science 2(7):35-44

scientific

Hyrachyus agrestis

Leidy, 1871
Ref.: E. L. Troxell. 1922. The genus Hyrachyus and its subgroups. American Journal of Science 4(19):38-49

scientific

Hyrachyus bairdianus

Marsh, 1871
Ref.: O. C. Marsh. 1871. Notice of some new fossil mammals from the Tertiary Formation. American Journal of Science 2(7):35-44

scientific

Hyrachyus bicornutus

Troxell, 1922
Ref.: E. L. Troxell. 1922. The status of Homogalax, with two new species. American Journal of Science 4(19):31-37

scientific

Hyrachyus crassidens

Osborn et al., 1878
Ref.: H. F. Osborn, W. B. Scott, and F. Speir. 1878. Palaeontological Report of the Princeton Scientific Expedition of 1877. Contributions from the Museum of Geology and Archæology of Princeton College 1:1-146

scientific

Lophiodon affinis

Marsh, 1871
Ref.: O. C. Marsh. 1871. Notice of some new fossil mammals from the Tertiary Formation. American Journal of Science 2(7):35-44

scientific

Lophiodon bairdianus

Marsh, 1871
Ref.: O. C. Marsh. 1871. Notice of some new fossil mammals from the Tertiary Formation. American Journal of Science 2(7):35-44

scientific

Metahyrachyus bicornutus

Troxell, 1922
Ref.: E. L. Troxell. 1922. The status of Homogalax, with two new species. American Journal of Science 4(19):31-37

Recombined

scientific

Isectolophus modestus

Leidy, 1870
Ref.: J. Leidy. 1870. Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, October 4th, 1870. Proceedings of the Academy of Natural Sciences of Philadelphia 22(3):109-110

scientific

Lophiodon modestus

Leidy, 1870
Ref.: J. Leidy. 1870. Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, October 4th, 1870. Proceedings of the Academy of Natural Sciences of Philadelphia 22(3):109-110

Lebenszeitraum in Million Jahren (Ma)

Start age: 50.3 Ma - End age: 37.2 Ma
Phanerozoic
(Phanerozoikum)
Cenozoic
(Känozoikum)
Paleogene
(Paläogen)
Eocene
(Eozän)
Priabonian
(Priabonium)
Bartonian
(Bartonium)
Lutetian
(Lutetium)
Ypresian
(Ypresium)
33.9
37.71
37.71
41.2
41.2
47.8
47.8
56

Additional data by PBDB, License: CC BY

Motility: actively mobile
Habit: ground dwelling
Environment: terrestrial
Diet:

browser
Compositon of the remains:

phosphatic

Reference- and Source indication, Literature

On the same taxonomic level (siblings) (Count: 13)

Taxonomic assignment (0)

References by PBDB, License: CC BY

  • L. B. Radinsky, 1967 - Hyrachyus, Chasmotherium, and the early evolution of helaletid tapiroids - American Museum Novitates (2313), 1-23 (journal article, English)
  • H. E. Wood, 1934 - Revision of the Hyrachyidae - Bulletin of the American Museum of Natural History (67), 181-295 (journal article, English)
  • E. L. Troxell, 1922 - The status of Homogalax, with two new species - American Journal of Science (4), 31-37 (journal article, English)
  • E. L. Troxell, 1922 - The genus Hyrachyus and its subgroups - American Journal of Science (4), 38-49 (journal article, English)
  • H. F. Osborn, 1878 - Palaeontological Report of the Princeton Scientific Expedition of 1877 - Contributions from the Museum of Geology and Archæology of Princeton College (1), 1-146 (journal article, English)
  • O. C. Marsh, 1873 - Notice of new Tertiary mammals - American Journal of Science (5), 407-410 (journal article, English)
  • O. C. Marsh, 1871 - Notice of some new fossil mammals from the Tertiary Formation - American Journal of Science (2), 35-44 (journal article, English)
  • J. Leidy, 1870 - [Abstract of remarks made before a meeting of the Academy of Natural Sciences of Philadelphia, October 4th, 1870] - Proceedings of the Academy of Natural Sciences of Philadelphia (22), 109-110 (abstract, English)

IDs

GUSID (Global unique identifier short form) j3ga7tT2l0et9ymhgSGJ1g
GUID (Global unique identifier) EE1A788F-F6D4-4797-ADF7-29A1812189D6
Database ID 100105