. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. The staggered marsupial incisor 165. Fig. 9: Adinodon pattersoni (holotype). Fragment of left ramus cleared with oil of anise for reveahng alveolar outhnes. Upper, buccal surface of fragment (Í2-5, c, pmi-3, m2), copied from Patterson (1950); same specimen Í2-c only seen from labial surface tilted slightly inward to reveal full depth of staggered alveolus is. Redrawn from Hershkovitz (1982). Comparisons. The edentulous mandibular fragment differs more or less from s
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. The staggered marsupial incisor 165. Fig. 9: Adinodon pattersoni (holotype). Fragment of left ramus cleared with oil of anise for reveahng alveolar outhnes. Upper, buccal surface of fragment (Í2-5, c, pmi-3, m2), copied from Patterson (1950); same specimen Í2-c only seen from labial surface tilted slightly inward to reveal full depth of staggered alveolus is. Redrawn from Hershkovitz (1982). Comparisons. The edentulous mandibular fragment differs more or less from similar species of the family Marmosidae, by more slender nearly parallel dorsoven- trally-sided ramus; canine larger than that of any didelphoid with comparably sized mandible and of the same-aged Kokopellia juddi with normal size canine. Measurements were not included with the original description of Kokopellia juddi and those given in table 1 are from a much worn cast kindly donated by Dr. Richard Cifelli. Part of the originally published diagnostic characters from Cifelli (1993, p. 9443) follows. "Similar to Cretaceous Marsupialia in postcanine dental formula and in general morphology of lower teeth but differs from all described genera in having posteriorly (rather than Hngually) placed hypoconulid. Molar morphology differs from primitive tribotheres (e. g., Kermackid) in having relatively broader talonids and in lacking a distal metacristid; from advanced tribotheres (e. g., lugomortiferum) in having a more Hngually situated paraconid and stronger labial postcingulid; and from early Eutheria (e. g., Prokennalestes) in dental formula, presence of a labial postcingulid, lesser development (or lack) of accessory cusps on the ultimate lower premolar, and the presence of an unreduced, more hngually situated paraconid!' The North American Late Cretaceous Eodelphis Matthew, with genotype and only known species, E, browni, is marmosine-hke in size, proportions and staggere
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