Edentate from the Oligocene of Wyoming: Notulae Naturae of The Acad. of Natural Sciences of Phila., No. 109Academy of Natural Sciences |
Frases i termes més freqüents
ancestry basic heritage characters basicranial basicranium broadened occiput Brulean Chadronian Duchesnean bullae in Xenocranium canine function Canine teeth present cartilaginous centrally placed orbit Chadronian Duchesnean Uintan completely ossified dasypods Definition depressed snout developed Distribution.-Oligocene edentate affinities enamel endocranial cast Eocene Epoicotheriidae Epoicotherium unicum external auditory meatus flat glenoid foramen lacerum genera Hat Creek height skull infraorbital foramen larger than Epoicotherium length c.-cond length X 100 low skull mammals maxilla Metacheiromyidae Metacheiromys Palaeanodon Montana genus occipital condyle occipital region Oligocene edentates Pholidota phylogenetic pileorivale new genus pinna portion Post-canine teeth posterior termination pterygoids sagittal crest semiprocumbent shallow mandibular simple and peg-like Simpson skull and mandible skull of Epoicotherium skull of Xenocranium smooth cranium squamosal bulb squamosal ex squamosal expansions strong zygomatic arch third cheek tooth tion type skull type specimen TYPE.-Epoicotherium unicum Douglass Utaetus Wasatchian weak zygomatic arches Xenarthra Xeno Xenocranium and Epoicotherium Xenocranium Epoicotherium Xenocranium pileorivale