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1 TH 9-310 YP-408.pdf
60% found this document useful (5 votes)2K views163 pages1 TH 9-310 Yp-408 PDFTHE OPERATIONAL MANUAL OF THE DUTCH DAF YP-408 ARMOURED CAR FOR THE INFANTERY. THE PREFIX 1 INDICATES THAT IT IS DESTINED FOR THE...
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Gender-Specific Reproductive Tissue in Ratites and Tyrannosaurus rex
Unambiguous indicators of gender in dinosaurs are usually lost during fossilization, along with other aspects of soft tissue anatomy. We report the presence of endosteally derived bone tissues lining the interior marrow cavities of portions of Tyrannosaurus rex (Museum of the Rockies specimen number 1125) hindlimb elements, and we hypothesize that these tissues are homologous to specialized avian tissues known as medullary bone. Because medullary bone is unique to female birds, its discovery in extinct dinosaurs solidifies the link between dinosaurs and birds, suggests similar reproductive strategies, and provides an objective means of gender differentiation in dinosaurs.
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Mémoires de la Société royale des antiquaires de France tome XVIII. - Persée
MÉMOIBES DE LA SOCIÉTÉ ROYALE DES ANTIQUAIRES DE FRANCE , tome XVIII (8e de la nouvelle série). — Un vol. in-8° de 519 pages , avec planches et gravures sur bois. Paris, 1846, chez Dumoulin. Le plus utile...
