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Hexobelomeryx fricki
Taxonomy
Hexobelomeryx fricki was named by Furlong (1941) [genotype]. Its type specimen is CIT 2780, a partial skull (a frontlet with horn cores partially preserved on both sides), and it is a 3D body fossil. Its type locality is Yepomera, which is in a Hemphillian terrestrial horizon in Mexico. It is the type species of Hexobelomeryx.
Synonymy list
Year | Name and author |
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1941 | Hexobelomeryx fricki Furlong p. 27 figs. Plate 1, figures 2, 4, 5; plate 2 |
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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.
†Hexobelomeryx fricki Furlong 1941
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Diagnosis
Reference | Diagnosis | |
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E. L. Furlong 1941 | The horn cores are not supraorbital as in Antilocapra americana and Stockoceros; only the anterior part of the base reaches above the posterior part of the orbit. The horn core is broad anteroposteriorly above the solid frontal base. Rising from a common base is a fork with two prongs or tines, and in addition a third prong, which usually projects anteriorly, sometimes posteriorly. "The cleft between the tines of the fork is narrower than that between the fork and the third prong. The,bottom of the cleft between the tines has a variable position above the base of the horn core, sometimes well above, at other times only a relatively short distance above. Of the three prongs, the anterior shows the largest cross section; the remaining two have cross sections of subequal size. When viewed.from above, the middle prong is.seen to project inward farther than either the anterior or the posterior prong. |
Measurements
No measurements are available
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Source: f = family, o = order, subc = subclass, subp = subphylum, p = phylum | |||||
References: Lillegraven 1979, Kiessling 2004, Nowak 1991, Carroll 1988, Nowak 1999 |
Age range: base of the Hemphillian to the top of the Blancan or 9.40000 to 1.40000 Ma
Collections (11 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Hemphillian | Mexico (Hidalgo) | Hexobelomeryx fricki (212307) | |
Hemphillian | Mexico (Jalisco) | Hexobelomeryx fricki (189790) | |
Hemphillian | Mexico (Guanajuato) | Hexobelomeryx fricki (175257) Hexobelomeryx sp. (18718) | |
Late/Upper Hemphillian | Mexico (Guanajuato) | Antilocapridae indet. (18740) Hexobelomeryx fricki (18713) Hexobelomeryx sp. (18737) | |
Late/Upper Hemphillian | Mexico (Chihuahua) | Hexobelomeryx fricki (18734 type locality: 18755) | |
Blancan | Mexico (Guanajuato) | Antilocapridae indet. (20077) | |
Blancan | Mexico (Hidalgo) | Hexobelomeryx fricki (20079) |