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Taxonomy
Canis (Epicyon) haydeni was named by Leidy (1858) [type of subgenus Epicyon]. It is a 3D body fossil. Its type locality is Niobrara River (coll. Hayden 1857), which is in a Barstovian/Clarendonian terrestrial horizon in the Loup Fork Formation of Nebraska.
It was recombined as Canis haydeni by Leidy (1873); it was recombined as Aelurodon haydeni by Scott and Osborn (1890), Matthew (1899), Hay (1902), Matthew and Gidley (1904), Matthew and Stirton (1930), VanderHoof and Gregory (1940), McGrew (1944), Bennett (1979) and Becker (1980); it was recombined as Epicyon haydeni by Baskin (1980), Voorhies (1990), Baskin (1998), Becker and McDonald (1998), Wang et al. (1999), Hulbert and Whitmore (2006) and Wang et al. (2008).
It was recombined as Canis haydeni by Leidy (1873); it was recombined as Aelurodon haydeni by Scott and Osborn (1890), Matthew (1899), Hay (1902), Matthew and Gidley (1904), Matthew and Stirton (1930), VanderHoof and Gregory (1940), McGrew (1944), Bennett (1979) and Becker (1980); it was recombined as Epicyon haydeni by Baskin (1980), Voorhies (1990), Baskin (1998), Becker and McDonald (1998), Wang et al. (1999), Hulbert and Whitmore (2006) and Wang et al. (2008).
Subspecies
Synonyms
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Synonymy list
Year | Name and author |
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1858 | Canis (Epicyon) haydeni Leidy p. 21 |
1873 | Canis haydeni Leidy p. 230 |
1890 | Aelurodon haydeni Scott and Osborn p. 66 |
1899 | Aelurodon haydeni Matthew |
1902 | Aelurodon haydeni Hay p. 774 |
1904 | Aelurodon haydeni Matthew and Gidley p. 250 |
1914 | Tephrocyon mortifer Cook |
1919 | Aelurodon aphobus Merriam |
1930 | Aelurodon haydeni Matthew and Stirton |
1933 | Osteoborus ricardoensis Stirton and VanderHoof p. 178 |
1933 | Osteoborus validus Stirton and Vanderhoof |
1940 | Aelurodon haydeni VanderHoof and Gregory |
1944 | Aelurodon haydeni McGrew |
1957 | Aelurodon mortifer Kitts |
1964 | Aelurodon mortifer Kitts |
1977 | Aelurodon mortifer Skinner et al. |
1977 | Aelurodon validus Skinner et al. |
1979 | Aelurodon haydeni Bennett |
1979 | Aelurodon validus Bennett |
1979 | Aelurodon ricardoensis Richey |
1979 | Aelurodon validus Richey |
1980 | Epicyon aphobus Baskin |
1980 | Epicyon haydeni Baskin |
1980 | Epicyon mortifer Baskin |
1980 | Epicyon validus Baskin |
1980 | Aelurodon haydeni Becker |
1989 | Epicyon validus Munthe |
1990 | Epicyon haydeni Voorhies |
1992 | Epicyon aphobus Whistler and Burbank |
1998 | Epicyon haydeni Baskin |
1998 | Epicyon haydeni Becker and McDonald |
1998 | Epicyon validus Munthe |
1999 | Epicyon haydeni Wang et al. p. 252 |
2006 | Epicyon haydeni Hulbert and Whitmore p. 5 |
2008 | Epicyon haydeni Wang et al. |
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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.
†Epicyon haydeni Leidy 1858
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†Aelurodon haydeni validus Matthew and Cook 1909
Invalid names: Aelurodon aphobus Merriam 1919 [synonym], Osteoborus ricardoensis Stirton and VanderHoof 1933 [synonym], Osteoborus validus Stirton and Vanderhoof 1933 [synonym], Tephrocyon mortifer Cook 1914 [synonym]
Diagnosis
Reference | Diagnosis | |
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R. A. Stirton and V. L. VanderHoof 1933 (Osteoborus ricardoensis) | Largest species of Osteoborus; Pp1 present with a single root; p2 and p3 with two roots, relatively high central cusps and faint accessory cusps; p4 with posterior border truncated obliquely along a highly upturned cingulum and with a small second (cingulum) posterior accessory cusp; tooth row relatively straight as in O. pugnator, but ramus much thicker below premolar series.
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