Results 61 to 70 of about 617 (180)
Neurocranial anatomy of an enigmatic Early Devonian fish sheds light on early osteichthyan evolution
eLife, 2018 The skull of ‘Ligulalepis’ from the Early Devonian of Australia (AM-F101607) has significantly expanded our knowledge of early osteichthyan anatomy, but its phylogenetic position has remained uncertain.
Alice M Clement +6 more
doaj +1 more source
Early Gnathostome Phylogeny Revisited: Multiple Method Consensus. [PDF]
PLoS ONE, 2016 A series of recent studies recovered consistent phylogenetic scenarios of jawed vertebrates, such as the paraphyly of placoderms with respect to crown gnathostomes, and antiarchs as the sister group of all other jawed vertebrates.
Tuo Qiao +4 more
doaj +1 more source
Journal of Morphology, Volume 287, Issue 3, March 2026.The figure presents a model of Moythomasia and a schematic histological model illustrating the internal structure and features of the cranial bones. These include bone (brown), osteocyte spaces (red), spheritic bone (light brown), osteon spaces (orange), dentine and canaliculi (green), pulp canal (yellow), ganoine (gray), arrested growth lines (dashed ...
Xianren Shan +5 more
wiley +1 more source
Fig. 11 in Groenlandaspidid Placoderm Fishes from the Late Devonian of North America
, 2003 Fig. 11. Reconstructed headshield, lateral platesPublished as part of Daeschler, Edward B., Frumes, Anna C. & Mullison, C. Frederick, 2003, Groenlandaspidid Placoderm Fishes from the Late Devonian of North America, pp.
Daeschler, Edward B. +2 more
core +1 more source
A new Middle Devonian arthrodire (placoderm fish) from the Broken River area, Queensland
, 2005 Young, Gavin C. (2005): A New Middle Devonian Arthrodire (Placoderm Fish) from the Broken River Area, Queensland. Records of the Australian Museum 57 (2): 211-220, DOI: 10.3853/j.0067-1975.57.2005.1443, URL: https://journals.australian.museum/young-2005 ...
Gavin C. Young, Young, Gavin C.
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A Middle-Late Devonian fish fauna from the Sierra de Perijá, western Venezuela, South America [PDF]
Fossil Record, 2002 A new Devonian fossil fish fauna from the region of Caño Colorado between the Rio Palmar and Rio Socuy, Sierra de Perijá, Venezuela, comes from two localities and several horizons within the Campo Chico Formation, dated on plants and spores as Givetian ...
G. C. Young, J. M. Moody
doaj +5 more sources
Investigating the Morphogenesis and Replacement of Lamprey Toothlets Using Synchrotron Imaging
Journal of Morphology, Volume 286, Issue 10, October 2025.Toothlet replacement is a conserved feature in lampreys. We describe the mechanism at tissue level and quantify the determining factors, thus providing the basis for studies into a deep homology of cyclostome toothlets and gnathostome teeth. ABSTRACT Teeth are a key innovation that underpinned the adaptive radiation of jawed vertebrates; however, their
Madleen Grohganz +9 more
wiley +1 more source
Oligodendrogenesis in Evolution, Development and Adulthood
Glia, Volume 73, Issue 9, Page 1770-1783, September 2025.Main Points Oligodendrocytes and myelin took shape in jawed vertebrates During development, OPCs are originated from NSCs and then undergo differentiation into mature oligodendrocytes that supply myelin. OPCs persist in the adult CNS and continue to produce oligodendrocytes and myelin.
Hao Hu +3 more
wiley +1 more source
Fig. 12 in Groenlandaspidid Placoderm Fishes from the Late Devonian of North America
, 2003 Fig. 12. Methods for deriving measurements of isolated trunk elements and head shields presented in Appendix 1 and 2.Published as part of Daeschler, Edward B., Frumes, Anna C. & Mullison, C.
Daeschler, Edward B. +2 more
core +1 more source
, 2020 Petalichthyid and “acanthothoracid” placoderms have taken pivotal positionsin the debate on placoderm—and, by extension, jawed vertebrate—relationships owing to perceived similarities with the jawless vertebrates.
Maria Grace Burton +15 more
core +1 more source