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Brachyzostrodon
Taxonomy
Brachyzostrodon was named by Sigogneau-Russell (1983).
It was assigned to Morganucodonta by Sigogneau-Russell (1983); to Morganucodontidae by Carroll (1988) and Hahn et al. (1991); and to Megazostrodontidae by Kielan-Jaworowska et al. (2004).
It was assigned to Morganucodonta by Sigogneau-Russell (1983); to Morganucodontidae by Carroll (1988) and Hahn et al. (1991); and to Megazostrodontidae by Kielan-Jaworowska et al. (2004).
Species
Synonymy list
Year | Name and author |
---|---|
1983 | Brachyzostrodon Sigogneau-Russell p. 238 |
1988 | Brachyzostrodon Carroll |
1991 | Brachyzostrodon Hahn et al. p. 238 |
2004 | Brachyzostrodon Kielan-Jaworowska et al. pp. 165, 179 fig. 4.9A,B |
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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.
G. †Brachyzostrodon Sigogneau-Russell 1983
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†Brachyzostrodon coupatezi Sigogneau-Russell 1983
†Brachyzostrodon maior Hahn et al. 1991
Diagnosis
Reference | Diagnosis | |
---|---|---|
D. Sigogneau-Russell 1983 | Dents trapues, tubercules b et c presque symétriques, l'un et l'autre bien sèparés de a; pas de "talon"; bourrelet lingual limité au bord postérieur; kühneocône très développé; surface d'usure de type Eozostrodon (? Morganucodon) engrènement des dents adjacents très lâche. | |
G. Hahn et al. 1991 | A genus of the Morganucodontidae, known only by isolated teeth, with the following characteristics of the lower molars: cusps band c are nearly of equal size and distinctly separated from the main cusp a. Internal cingulum consisting of isolated cusps, with well developed cusp g (kuehneocone) and cusp e. Talonid very short, with 3 cusps (d, bt 1, bt 2); cusp e not protruding anteriorly, hence week indentation between cusps e and b: the interlocking of adjacent teeth was loose. Enamel of the cusps more or less wrinkled. Occlusion of Morganucodon type, but different masticatory process. |