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Diacodexis secans
Taxonomy
Pantolestes secans was named by Cope (1881). Its type specimen is AMNH 4899, a set of teeth (left and right P4 - M3), and it is a 3D body fossil.
It was recombined as Trigonolestes secans by Matthew (1899) and Hay (1902); it was recombined as Diacodexis secans by Cope (1882), Sinclair (1914), Guthrie (1971), Krishtalka and Stucky (1985), Stucky (1998), Thewissen et al. (2001) and Theodor et al. (2007).
It was recombined as Trigonolestes secans by Matthew (1899) and Hay (1902); it was recombined as Diacodexis secans by Cope (1882), Sinclair (1914), Guthrie (1971), Krishtalka and Stucky (1985), Stucky (1998), Thewissen et al. (2001) and Theodor et al. (2007).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1881 | Pantolestes secans Cope p. 187 |
1882 | Diacodexis secans Cope |
1882 | Phenacodus laticuneus Cope p. 181 |
1882 | Mioclaenus brachystomus Cope pp. 187-188 |
1883 | Diacodexis laticuneus Cope |
1884 | Diacodexis laticuneus Cope |
1884 | Pantolestes brachystomus Cope |
1894 | Trigonolestes brachystomus Cope |
1899 | Hyopsodus laticuneus Matthew |
1899 | Trigonolestes brachystomus Matthew |
1899 | Trigonolestes secans Matthew |
1902 | Trigonolestes brachystomus Hay p. 649 |
1902 | Trigonolestes secans Hay p. 649 |
1902 | Hyopsodus laticuneus Hay p. 790 |
1902 | Hyopsodus laticuneus Osborn p. 184 figs. Figure 10 |
1914 | Diacodexis laticuneus Sinclair |
1914 | Diacodexis olseni Sinclair |
1914 | Diacodexis secans Sinclair |
1971 | Diacodexis secans Guthrie |
1985 | Diacodexis secans Krishtalka and Stucky |
1998 | Diacodexis secans Stucky |
2001 | Diacodexis secans Thewissen et al. p. suppl. |
2007 | Diacodexis secans Theodor et al. p. 40 |
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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.
†Diacodexis secans Cope 1881
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Invalid names: Diacodexis laticuneus Cope 1882 [synonym], Diacodexis olseni Sinclair 1914 [synonym], Mioclaenus brachystomus Cope 1882 [synonym]
Diagnosis
Reference | Diagnosis | |
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L. Krishtalka and R. K. Stucky 1985 | Larger than all penecontemporaneous species of Dia- codexis and more robust than D. gracilis, D. minutus and Artiodactyla sp. A and sp. B, with more inflated molar protocones, metaconids and hypoconids. Additionally, differs from D. gracilis in having a less re- duced and less medial paraconid on M1_3, and more nearly square M1_2; M1_3 talonids more shallow and cusps more bunodont than in Artiodactyla sp. A and sp. B and D. minutus; M1_3 metaconids less inflated in proportion to tooth size than in D. woltonensis; M 1_ 3 para- conids and paracristids more developed than in Artiodactyla sp. A and sp. B, paraconids and metaconids less elevated, entoconid lower than hypoconid and hypoconulid not lingually placed near entoconid. |