Results 41 to 50 of about 327 (156)
A new genus of ptyctodont (Placodermi) from the Late Devonian of Baltic area [PDF]
Palaeontologia Electronica, 2019 © Texas A and M University. All rights reserved. The ptyctodont fish first referred to as Chelyophorus pskovensis Obruchev, 1947 from the Early Frasnian (Late Devonian) of Velikaya River, Pskov Region, Russia, is redescribed following the collection of additional materials from the contemporaneous Meeksi Mill outcrop, Estonia; Piskovichi and Snetnaya ...
Trinajstic K. +3 more
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Diversity, 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
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, 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.
https://orcid.org/
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Известия высших учебных заведений: Геология и разведка, 2019 Three stages, namely Middle Devonian (I), Early Late Devonian (II) and Late Late Devonian (III), are distin-guished in the evolution of antiarchs (Placodermi, Antiarchi) in the Middle-Late Devonian of Northern Eurasia.
S. V. Moloshnikov
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A new selenosteid arthrodire (‘Placodermi’) from the Late Devonian of Morocco [PDF]
Journal of Vertebrate Paleontology, 2015 ABSTRACT—A new genus and species of selenosteid arthrodire is described from the Late Devonian of Morocco. Driscollaspis pankowskiorum, gen. nov. sp. nov., is defined as a selenosteid with a shallow preorbital plate embayment of the central plate, a paranuchal plate embayment of the central plate as a deep embayment determined by the lateral and ...
Rucklin, M. +2 more
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, 1998 Johanson, Zerina (1998): The Upper Devonian fish Bothriolepis (Placodermi: Antiarchi) from near Canowindra, New South Wales, Australia. Records of the Australian Museum 50 (3): 315-348, DOI: 10.3853/j.0067-1975.50.1998.1289, URL: https://journals ...
Zerina Johanson, Johanson, Zerina
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Bioerosion in the Late Devonian placoderm remains from the Holy Cross Mountains, Poland
Acta Palaeontologica PolonicaWe report the first occurrence of trace fossils in placoderm bones from the Upper Devonian of the Holy Cross Mountains. A taxonomic analysis of three ichnogenera revealed the earliest evidence of Sulculites (ie., Sulculites bellus), characterised by ...
Patrycja G. Dworczak +2 more
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Ornamentation of dermal bones of Placodermi from the Lower Devonian of Morocco as a measure of biodiversity [PDF]
Geologos, 2017 Abstract Dermal bones are formed early during growth and thus constitute an important tool in studies of ontogenetic and evolutionary changes amongst early vertebrates. Ornamentation of dermal bones of terrestrial vertebrates is often used as a taxonomic tool, for instance in Aetosauria, extant lungfishes (Dipnoi) and ray-finned fishes (
Antczak, Mateusz, Berkowski, Błażej
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, 1998 Figure 6. Bothriolepis yeungae n.sp., smaller individuals. A, AM F.101608; B, AM F.I01243; C, AM F.101276, AM F.101277, all dorsal view of head and trunkshield; D, AM F.I01274, AM F.
Johanson, Zerina
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, 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.
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