Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Томи 73 – 74American Philosophical Society, 1934 |
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abdominal segments amazili Amer American Amphitherium Anax Anax junius Arthrodires basal bone Calvert canal central cerci cercoids cheek teeth chromosomes cingulum Coccosteus Cope Coryphodon crown cusps Deltatheridium dental denticles dentition Dinichthys distal dollar dorsal shield Dragonflies Eocene Euryaspis brachycephalus Bryant evidence evolution exuviæ facet fish fissure fossil genus gold head head-roof hind hypocone imago incisors inner instar internal Jurassic Lafayette larva larvæ larval instar lateral length longipes longitudinal lower molars mammal-like reptiles mammalian mammals mandible margin median ment metacones metaconid mid-dorsal moult Odonata origin Osborn ostracoderms pale Paleocene Pantolambda pantotherians paracone plate polyisomerism posterior premolars present price level primitive Prof protocone railroads reared setæ side Simpson Society species specimen spine stabilization stage statute surface Table talonid theory of trituberculy tion Titanoides tooth transverse triconodonts trigonid tritubercular tubercles upper and lower upper molars William