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TITLE: Gallolestes pachymandibularis (Theria, incertae sedis; Mammalia) from Late Cretaceous deposits in Baja California del Norte, Mexico
AUTHOR: William A. Clemens
JOURNAL: PaleoBios
NOTES: no. 33
ABSTRACT: Discovery of an additional specimen -- a dentary containing an unerupted last molar -- of the rare Late Cretaceous mammal, Galtolestes pachymandibularis, in strata of Campanian age within the "El Gallo Formation", Baja California del Norte, Mexico, prompted a review of interpretations of this mammal's systematic relationships. Galtolestes is not clearly referable to any of the currently recognized families of eutherian or metatherian mammals. Rather than being a primitive or aberrant member of one of these, possibly Gallolestes is a representative of another lineage of metatherian-eutherian grade of dental evolution that is not referable to either the Eutheria or Metatheria.
COLLECTION: PaleoBios Archive Public
ID: 193

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