Results 81 to 90 of about 643 (178)
, 2015 The 'buchanosteid' placoderms are best known from the Early Devonian of Australia, but also occur in China, Russia, Central Asia and the Middle East.
Mark-Kurik, Elga +2 more
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The origin of the myelination program in vertebrates
, 2008 SummaryThe myelin sheath was a transformative vertebrate acquisition, enabling great increases in impulse propagation velocity along axons. Not all vertebrates possess myelinated axons, however, and when myelin first appeared in the vertebrate lineage is
Goujet, D., Zalc, B., Colman, D.
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Hyperossification in the vertebral column of Devonian placoderm fishes (Arthrodira)
Journal of Vertebrate Paleontology, 2020 Skeletal bone enlargement (hyperossification) was thought to only occur in endochondral and dermal bones (e.g., endoskeletons of marine tetrapods and dermal bones of certain jawless vertebrates, placoderms, and teleost fishes). However, in some arthrodiran placoderms (basal jawed vertebrates), i.e., Millerosteus minor, Compagopiscis croucheri ...
van Mesdag, S. +3 more
openaire +2 more sources
PLoS ONE, 2017 Here we present a new species of placoderm fish, Africanaspis edmountaini sp. nov., and redescribe Africanaspis doryssa on the basis of new material collected from the type locality of Africanaspis.
Robert W Gess, Kate M Trinajstic
doaj +1 more source
, 2016 Witteberg Group rocks are Late Devonian to Early Carboniferous in age. Comparison with Laurasian sea-level curves has correlated the earliest Carboniferous Tournasian transgression, with the argillaceous Kweekvlei Formation, overlying the arenaceous ...
Gess, Robert W, Robert W. Gess
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Life reconstruction of the non-marine component of the Waterloo Farm biota.
, 2023 Hyneria udlezinye is shown together with the tetrapods Umzantsia amazana and Tutusius umlambo [11], the placoderms Groenlandaspis riniensis and Bothriolepis africana [19], the coelacanth Serenichthys kowiensis [27], the lungfish Isityumzi mlomomde [28 ...
Robert W. Gess (3906874) +1 more
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The body musculature of Arthrodire Placoderms
, 2009 The exceptionally preserved Late Devonian (Frasnian) fishes from the Gogo Formation, Western Australia, have recently been recognized to contain, sometimes extensive, remains of musculature preserved in three dimensions.
Long, J., Ahlberg, P., Trinajstic, Kate
core
An antiarch placoderm shows that pelvic girdles arose at the root of jawed vertebrates
, 2012 Almost all gnathostomes or jawed vertebrates (including osteichthyans, chondrichthyans, \u27acanthodians\u27 and most placoderms) possess paired pectoral and pelvic fins.
Liantao Jia +9 more
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A simplified phylogeny of jawed vertebrates modified from Brazeau [14].
, 2013 ‘Placoderms’ and ‘Acanthodians’ are extinct, probably paraphyletic, groups. Representative scales of osteichthyans (Cheirolepis), acanthodians (Nostolepis), stem chondrichthyans (Cladoselache) and ‘placoderms’ (Ohiolepis) are modified from [52], [53 ...
Paul Tafforeau (118114) +4 more
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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
doaj +1 more source