Results 61 to 70 of about 387 (155)

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

, 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

Evolutionary analysis of swimming speed in early vertebrates challenges the 'New Head Hypothesis'. [PDF]

Commun Biol, 2022
Ferrón HG, Donoghue PCJ.
europepmc   +1 more source

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)

, 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  

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)

, 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

A new antarctaspid (Placodermi, Arthrodira) from the Lower Devonian of Yunnan, China

Journal of Vertebrate Paleontology
Antarctaspids, a basal subgroup within the Arthrodira, display a mosaic of arthrodire and petalichthyid features. However, their morphology has remained poorly understood due to the paucity of well-preserved specimens. Here, we describe a new antarctaspid arthrodire, Panjiangosteus eurycephala gen. et sp.
Qinyuan Xue, Qi Guan, Zumin Xian, Xiong Mo, Yingtian Zhao, Qiang Li, Youan Zhu, Min Zhu   +7 more
openaire   +1 more source

Increasing morphological disparity and decreasing optimality for jaw speed and strength during the radiation of jawed vertebrates. [PDF]

Sci Adv, 2022
Deakin WJ, Anderson PSL, den Boer W, Smith TJ, Smith TJ, Hill JJ, Rücklin M, Donoghue PCJ, Rayfield EJ.   +8 more
europepmc   +1 more source

New cranial material of the acanthothoracid placoderm Palaeacanthaspis vasta from the Lower Devonian of Podolia—phylogenetic and taxonomic significance [PDF]

Acta Palaeontologica Polonica, 2021
VINCENT DUPRET, HUBERT SZANIAWSKI, MAREK DEC, PIOTR SZREK   +3 more
doaj  

Postcranial disparity of galeaspids and the evolution of swimming speeds in stem-gnathostomes. [PDF]

Natl Sci Rev, 2023
Gai Z, Lin X, Shan X, Ferrón HG, Donoghue PCJ.   +4 more
europepmc   +1 more source

THE ENDOSKELETON OF SHOULDER GIRDLE IN PTYCTODONTS (PLACODERMI) [PDF]

Proceedings of the Estonian Academy of Sciences. Geology, 1991
Elga Mark-Kurik, Alexander Ivanov, Olga Obrucheva   +2 more
openaire   +1 more source

Devonian vertebrates from Australia [PDF]

, 1980
A vertebrate microfauna from the Lower Devonian (Emsian) of Australia is described. It is a taxonomically diverse assemblage, including disarticulated dermal skeletal fragments and/or teeth of Thelodonti, Placodermi, Cladodontida, Acanthodii ...
Giffin, Emily B.
core   +1 more source