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abdomen abundant amber amber species appendages Arachnida Band belong Berendt body British Columbia Brodie Carboniferous cephalothorax Coleoptera described by Heer described from Oeningen Diplopoda Dobbertin dorsal Eadoboj elytra England English Purbecks entom Eott externomedian extinct genera extinct genus figured five species Florissant forms fossil fossil insects found at Florissant found in amber four species front wings furnished genera Geol Geological Germar Giebel half the wing Heer Heer describes Hexapoda hind wings insects internomedian vein known Krottensee Kutschlin larva Lias Loew Mazon Creek mediastinal Mediastinal vein Menge mentions Mesozoic Mesozoic rocks myriapods Neuroptera number of species occur at Florissant occur in amber Oeningen Oolite Orthoptera pair of legs Paleozoic Price 5 cents Radoboj represented Rott Salzhausen scapular vein Schambelen Scudd Scudder scutes segments Serres Sicilian amber Sieblos single species slender species species referred specimens Suborder Tertiary deposits Thorell three species types Ueber Utah Weyenbergh Wyoming
Seite 34 - The thorax is composed of three segments, each of which bears a pair of legs and each of the hinder two a pair of wings, which, especially the posterior, are occasionally aborted.
Seite 104 - ... from the existing orders under the name of Palaeodictyoptera — a term first proposed by Goldenberg in lieu of Dohrn's preoccupied Dictyoptera, which had been suggested for an order typified by the Permian Eugereon. This order is defined more by the generalized characters of its various members, and the lack of those special characteristics which are the property of existing orders, than by any definite peculiarities of its own.