搜索结果: 1-7 共查到“古生物学 Devonian”相关记录7条 . 查询时间(0.062 秒)
Karksilepis parva gen.et sp.nov.(Chondrichthyes)from the Burtnieki Regional Stage,Middle Devonian of Estonia
Chondrichthyes Burtnieki Regional Stage Middle Devonian Estonia
2009/10/21
Dermal scales of a new chondrichthyan were discovered in four levels in sandstones of the Härma Beds (lower part of the Burtnieki Regional Stage, Middle Devonian) in the Karksi outcrop of South E...
Late Silurian-Early Devonian tessellated heterostracan Oniscolepis Pander,1856 from the East Baltic and North Timan
Silurian Devonian East Baltic North Timan Heterostraci exoskeletal units
2009/10/21
Pander (1856, Monographie der fossilen Fische der silurischen Systems der Russisch–Baltischen Gouvernements.Obersilurische Fische. Buchdruckerei Kaiserlichen Akademie des Wissenschaften, St. Pete...
Systematic position,distribution,and shell structure of the Devonian linguloid brachiopod Bicarinatina bicarinata (Kutorga,1837)
Brachiopoda Bicarinatina shell structure Middle Devonian Estonia Latvia Russia
2009/10/21
The type species of the brachiopod genus Bicarinatina Batrukova was first described by Kutorga in 1837 (Zweiter Beitrag zur Geognosie und Paläaontologie Dorpats und seiner nächsten Umbegebun...
New information on the Devonian shark Mcmurdodus,based on material from western Queensland,Australia
Mcmurdodus Devonian Hexanchiformes Echinorhinus Prismatic calcified cartilage
2009/10/20
Histological structure of the type and newly collected teeth of the shark Mcmurdodus whitei TURNER &YOUNG,1987, from a Devonian (?late Emsian-early Eifelian) limestone outcrop in the Cravens Peak Beds...
Upper Frasnian rocks of Utah and Nevada yielded several multicuspid, low-crowned shark teeth. It is proposed that they were used mainly for filtering food from water. Two new chondrichthyan species be...
Protodus jexi Woodward,1892 (Chondrichthyes),from the Lower Devonian Campbellton Formation,New Brunswick,Canada
Early gnathostomes Early chondrichthyans Protodus Teeth Early Devonian
2009/10/20
Protodus jexi from the early Emsian ‘Atholville beds’, Campbellton Formation between Atholville and Campbellton,northern New Brunswick, Canada, is redescribed from material studied by R. H. Traquair a...
New genus of chondrichthyans from the Silurian-Devonian boundary deposits of Tuva (Russia)
Chondrichthyans Elegestolepids Silurian Devonian Tuva
2009/10/20
The scales of T.schultzei display significant morphological variation and are characterized by a very fine, comparatively wide and flat crown with longitudinal ribs and a small and short neck. The gro...