Results 31 to 40 of about 126 (64)
FIG. 4. — Homostius spp.; A, B, left suborbital plate (external and internal views); C-E, left postorbital plates, of H. arcticus Heintz, 1934 (C), H. latus Asmuss, 1856 (D) and H. milleri Traquair, 1888 (E). (Modified from Heintz 1934: figs 22, 23, 50).
Young, Gavin C.
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Redescription of Aspidichthys : Arthrodira, Devonian [PDF]
Author Institution: Ohio Wesleyan University, Delaware ...
Sinclair, G. Winston, Walker, Dale R.
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FIG. 3. — Restoration of the right suborbital (SO) plate of Atlantidosteus pacifica n. sp.; A, external surface; B, internal surface; C, section through the suborbital lamina at the level indicated (arrow in B). Abbreviations: att.aup, attachment surface
Young, Gavin C.
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[…] Beschrieben wird ein größerer Fischfund aus dem hessischen Zechsteinkalk, der dem Arthrodira Menaspis armata zugeordnet wird. Das Fossil zeigt bislang unbekannte histologische Strukturen der Spinalia, darunter Havers’sche Kanäle und röhrenartige ...
Hessisches Landesamt für Bodenforschung +2 more
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Figure 2. Regional geography and stratigraphic relationships. A, geography and depositional basins for the USA mid-continent (modified from Elliott et al., 2000). Fossil localities: 1, Dunkleosteus raveri sp. nov.
Carr, Robert K., Hlavin, William J.
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Figure 6. Yinostius major. A, median dorsal plate in dorsal view, with missing part slashed; B, right anterior dorsolateral plate and anterior lateral plate complex in lateral view, with missing anterior part restored in dashed lines, and the boundary of
Wang, Jun-Qing, Zhu, Min, Zhu, You-An
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La faune des vertébrés inférieurs (poissons) des Grès de Gaspé était presque inconnue il y a 50 ans, sauf un Cephalaspis ostéostracé (poisson sans mâchoires) décrit en 1954 par Russell, dont Belles-Isles a changé le genre en 2011.
Pageau, Yvon, Yvon Pageau
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Pelvic and reproductive structures in placoderms (stem gnathostomes)
Newly discovered pelvic and reproductive structures within placoderms, representing some of the most crownward members of the gnathostome stem group and the most basal jawed vertebrates, challenge established ideas on the origin of the pelvic girdle and ...
Boisvert, C. +5 more
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The current data set refers to the study of fossil fish material from Southwest Ireland (Placodermi, Antiarchi; Givetian of the Iveragh Peninsula). The data consist of SEM elemental mapping (section 1), CTscan image stacks and subsequent working files (i.
Dupret, Vincent
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Le statut phylogénétique des " Actinolepida " (Placodermi Arthrodira) demeurait ambigu. L'étude de matériel du Dévonien inférieur de Podolie (Ukraine) est prétexte à une analyse phylogénétique pour résoudre les relations de parenté entre les ...
DUPRET, Vincent, GOUJET, Daniel
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