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Condorodon spanios
Taxonomy
Condorodon spanios was named by Gaetano and Rougier (2012). Its type specimen is MPEF-PV 2365, a tooth (lower left molariform), and it is a 3D body fossil. Its type locality is Queso Rallado, near Cerro Cóndor, which is in a Toarcian/Toarcian lacustrine mudstone in the Cañadón Asfalto Formation of Argentina. It is the type species of Condorodon.
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Condorodon spanios Gaetano and Rougier |
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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.
†Condorodon spanios Gaetano and Rougier 2012
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. C. Gaetano and G. W. Rougier 2012 | Amphilestid triconodont with a compressed lower molariform bearing five mesiodistally aligned cusps (a-e). Cusp a dominant, centered on the crown, and slightly recumbent. Cusp b smaller than c. Cusps b and c mesially and distally pointing, respectively. Cusps d and e relatively small. Cusp e not supported completely by the mesial root. Mesial interlocking structures absent. Enamel thicker lingually than labially. The following are the main differences with closely related forms: unlike Tendagurodon, Condorodon has larger cusp b and c relative to cusp a, higher cusp c when compared to b, better developed cusp d, broader and deeper notches between main cusps, more vertically oriented roots that are slender with respect to the crown length, and lacks cingula below cusps b and e; the absence of cusp f (a feature also common to Juchilestes, Aploconodon, spalacotheriids, and zhangheotheriids) and the relative size of cusps b and c (shared with Tendagurodon) distinguishes Condorodon from other amphilestherians; Condorodon shares with Argentoconodon Rougier et al., 2007c, Hakusanodon, Tendagurodon, Volaticotherium Meng et al., 2006, spalacotheriids, and zhangheotheriids the lack of a mesial embayment indicative of an interlocking mechanism involving the fit of cusp d of the preceding tooth between mesial crests or cusps. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Luo et al. 2003, Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Middle Toarcian to the top of the Late/Upper Toarcian or 182.90000 to 174.70000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Toarcian - Late/Upper Toarcian | Argentina (Chubut) | Condorodon spanios (type locality: 67434) |