Results 21 to 30 of about 191 (100)

A Redescription of Gymnotrachelus (Placodermi: Arthrodira) from the Cleveland Shale (Famennian) of Northern Ohio. U.S.A

open access: yes, 1994
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Carr, Robert K.
openaire   +3 more sources

A Devonian Fish Tale: A New Method of Body Length Estimation Suggests Much Smaller Sizes for Dunkleosteus terrelli (Placodermi: Arthrodira)

open access: yesDiversity, 2023
Dunkleosteus terrelli, an arthrodire placoderm, is one of the most widely recognized fossil vertebrates due to its large size and status as one of the earliest vertebrate apex predators.
Russell K. Engelman
doaj   +1 more source

New finds of fishes in the lower uppermost Famennian (Upper Devonian) of Сentral Russia and habitats of the Khovanshchinian vertebrate assemblages [PDF]

open access: yesEstonian Journal of Earth Sciences, 2018
New vertebrate finds from the Khovanshchinian Regional Stage (lower uppermost Famennian, Upper Devonian) made an important contribution to our knowledge of the composition and distribution of vertebrate assemblages in Central Russia.
Oleg A. Lebedev   +3 more
doaj   +1 more source

Structure, Growth and Histology of Gnathal Elements in Dunkleosteus (Arthrodira, Placodermi), with a Description of a New Species from the Famennian (Upper Devonian) of the Tver Region (North-Western Russia)

open access: yesDiversity, 2023
A new species of Dunkleosteus, D. tuderensis sp. nov., is named based on an infragnathal from the Famennian of the Tver Region, Russia. CT scanning of the holotype revealed two high-density bony constituents comparable in position and interrelations to ...
Oleg A. Lebedev   +7 more
doaj   +1 more source

Tityosteus, a marine fish (Arthrodira, Homostiidae) from the Emsian of Aragón, Spain, and its distribution

open access: yesSpanish Journal of Palaeontology, 2021
A right marginal plate (over 11 cm long) of Tityosteus cf. rieversae Gross, 1960, emend., has been found in the late part of the Early Emsian (late Zlichovian) in the Mariposas Fm. of the Eastern Iberian Cordillera in southern Aragón. The palaeoecological conditions correspond to a hemipelagic ensialic basin, with predominant elements of Hercynic ...
Elga Mark-Kurik, Peter Carls
openaire   +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

The morphology ofYujiangolepis liujingensis(Placodermi, Arthrodira) from the Pragian of Guangxi (south China) and its phylogenetic significance [PDF]

open access: yesZoological Journal of the Linnean Society, 2009
The morphology of the arthrodire placoderm Yujiangolepis liujingensis Wang, Pan & Wang, 1998, from the Lower Devonian of Guangxi is redescribed, and compared to that of the basal arthrodires Antarctaspis White, 1968 from Antarctica, Toombalepis Young & Goujet, 2003 and Wuttagoonaspis Ritchie, 1973 from Australia, and Yiminaspis Dupret, 2008 from south ...
Dupret, Vincent   +2 more
openaire   +1 more source

FIG. 2. — Atlantidosteus pacifica n 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. 2. — Atlantidosteus pacifica n. sp., holotype (ANU V1033), a right suborbital plate from the cheek in external (A) and internal (B) views (acid prepared specimen coated with ammonium chloride sublimate).
Young, Gavin C.
core   +1 more source

Figure 2 in The morphology of Yujiangolepis liujingensis (Placodermi, Arthrodira) from the Pragian of Guangxi (south China) and its phylogenetic significance

open access: yes, 2009
Figure 2. Subcomplete skull roof of Yujiangolepis liujingensis Wang et al., 1998 (holotype IVPP V 1957). A, photograph of the skull roof in dorsal view; B, magnification around right central and anterior paranuchal plates; C, interpretative sketch of the
Dupret, Vincent   +2 more
core   +1 more source

Figure 1. Dinichthys herzeri. A, AMNH 81 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 1. Dinichthys herzeri. A, AMNH 81 (holotype), incomplete nuchal plate in internal view. B, AMNH 73 (paratype), left inferognathal plate in lateral view. C, AMNH 34, left anterior superognathal in lateral view.
Carr, Robert K., Hlavin, William J.
core   +1 more source

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