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Leptalestes toevsi
Taxonomy
Leptalestes toevsi was named by Hunter et al. (2010). Its type specimen is MOR 2505, a maxilla (R maxillary fragment with M2-4), and it is a 3D body fossil. Its type locality is Shell Hell (MOR Loc. 703), which is in an Edmontonian fluvial mudstone in the St. Mary River Formation of Montana.
Synonymy list
| Year | Name and author |
|---|---|
| 2010 | Leptalestes toevsi Hunter et al. p. 890 |
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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.
†Leptalestes toevsi Hunter et al. 2010
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. P. Hunter et al. 2010 | Generally similar to Leptalestes krejcii, L. prokrejcii, and ?L. cooki, as well as to the pediomyid-like metatherian Iqualadelphis lactea Fox, 1987. Significantly larger than Iqualadelphis and L. prokrejcii, overlaps the upper end of the size range of L. krejcii and the lower end of the size range of ?L. cooki. Differs from Iqualadelphis lactea in reduced stylar cusp B on M3, comparable in size to that of ?L. cooki and L. krejcii when present in these latter taxa (see Clemens, 1966). Differs from L. prokrejcii, L. krejcii, and ?L. cooki in more distally positioned ectoflexus; stronger, more mesiolabially positioned parastyle; wider parastylar shelf; narrower protocone; and narrower cingula extending from para- and metaconules to the bases of the parastyle and metacone, respectively. Differs from ?L. cooki in lack of pre- and postprotoconal cingula on M2-3. |