Results 31 to 40 of about 126 (64)

FIG. 4 in A new species of Atlantidosteus Lelièvre, 1984 (Placodermi, Arthrodira, Brachythoraci) from the Middle Devonian of the Broken River area (Queensland, Australia)

open access: yes, 2003
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.
core   +1 more source

Redescription of Aspidichthys : Arthrodira, Devonian [PDF]

open access: yes, 1956
Author Institution: Ohio Wesleyan University, Delaware ...
Sinclair, G. Winston, Walker, Dale R.
core   +1 more source

FIG. 3 in A new species of Atlantidosteus Lelièvre, 1984 (Placodermi, Arthrodira, Brachythoraci) from the Middle Devonian of the Broken River area (Queensland, Australia)

open access: yes, 2003
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.
core   +1 more source

Menaspis armata EWALD, a Histologically Interesting Arthrodire Find in the Zechstein Limestone of Hesse

open access: yes, 1987
[…] 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
core   +1 more source

Figure 2. Regional geography and stratigraphic relationships. A in Two new species of Dunkleosteus Lehman, 1956, from the Ohio Shale Formation (USA, Famennian) and the Kettle Point Formation (Canada, Upper Devonian), and a cladistic analysis of the Eubrachythoraci (Placodermi, Arthrodira)

open access: yes, 2010
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.
core   +1 more source

Figure 6. Yinostius major. A in Redescription of Yinostius major (Arthrodira: Heterostiidae) from the Lower Devonian of China, and the interrelationships of Brachythoraci

open access: yes, 2015
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
core   +1 more source

Découverte de deux spécimens rares d’Arthrodires, poissons fossiles de 400 millions d’années, dans les Grès de Gaspé, Québec

open access: yes, 2021
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
core   +1 more source

Pelvic and reproductive structures in placoderms (stem gnathostomes)

open access: yes, 2014
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
core   +2 more sources

Bothriolepis (Placodermi, Arthrodira) från Iveragh-halvön (Irland) - CT-data, 3D-modeller, och fylogenetiska filer

open access: yes, 2022
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
core   +2 more sources

Étude anatomique des genres Kujdanowiaspis Stensiö 1942 et Erikaspis nov. gen. (Placodermi Arthrodira " Actinolepida ") du Dévonien inférieur de Podolie (Ukraine) (Nouvelle proposition de la phylogénie des Arthrodira)

open access: yes, 2003
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
core  

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