Results 11 to 20 of about 6,577 (179)

Updated checklist of Azores Actinopterygii (Gnathostomata: Osteichthyes) [PDF]

open access: yesBiodiversity Data Journal, 2021
Since the first published comprehensive checklist of Azorean fishes - covering the whole Exclusive Economic Zone (EEZ) region - several new records have been published and an updated checklist published in 2010. This new dataset covers all confirmed species of actinopterygians for the Azorean EEZ.
Barcelos, Luis M. D.   +2 more
openaire   +8 more sources

Scale deformities in Nile tilapia, Oreochromis niloticus, (Actinopterygii: Cichlidae) from Sudan [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2005
Scale deformity in Nile tilapia, Oreochromis niloticus, (Actinopterygii: Cichlidae) is reported for the first time from Dongola, north of Sudan. The abnormal scales are fused pairs, with two well-developed foci.
L.A. Jawad
doaj   +4 more sources

Les « ichtyolites » (Actinopterygii) de la collection Jean-Baptiste Beurard (1745–1835) : intérêt historique et redécouverte de la série type d’Armigatus brevissimus (Blainville, 1818) du Cénomanien du Liban

open access: yesBSGF - Earth Sciences Bulletin, 2021
Cet article souligne le rôle Jean-Baptiste Beurard dans l’histoire de la paléoichtyologie. Ancien chanoine de la cathédrale de Toul, il trouva après les affres des débuts de la Révolution un emploi d’agent du gouvernement attaché à l’administration des ...
Brignon Arnaud
doaj   +1 more source

A New Glyptosternine Catfish from Myanmar (Actinopterygii: Siluriformes: Sisoridae)

open access: yes, 2022
Ng, Heok Hee, Kottelat, Maurice (2022): A New Glyptosternine Catfish from Myanmar (Actinopterygii: Siluriformes: Sisoridae).
Ng, Heok Hee   +3 more
core   +1 more source

Sardinella ventura n. sp. (Actinopterygii: Clupeiformes: Clupeidae), a new sardine from Mauritius

open access: yes, 2021
Hata, Harutaka, Motomura, Hiroyuki (2021): Sardinella ventura n. sp. (Actinopterygii: Clupeiformes: Clupeidae), a new sardine from Mauritius.
Hata, Harutaka   +9 more
core   +1 more source

A Hiatus Obscures the Early Evolution of Modern Lineages of Bony Fishes

open access: yesFrontiers in Earth Science, 2021
About half of all vertebrate species today are ray-finned fishes (Actinopterygii), and nearly all of them belong to the Neopterygii (modern ray-fins). The oldest unequivocal neopterygian fossils are known from the Early Triassic.
Carlo Romano
doaj   +1 more source

Feeding convergence among ray-finned fishes: Teeth of the herbivorous actinopterygians from the latest Permian of East European Platform, Russia [PDF]

open access: yesActa Palaeontologica Polonica, 2020
unique functional adaptation to herbivory within early ray-finned fishes is exemplified by the late Permian actinopterygians within the family Eurynotoidiidae with policuspid teeth strongly modified with respect to the primitive actinopterygian ...
Maciej Pindakiewicz   +8 more
doaj   +1 more source

Late Mesozoic marine Antarctic fishes: future perspectives based on the newly collections recovered in the Ameghino and López de Bertodano Formations [PDF]

open access: yesResearch & Knowledge, 2017
Nowadays, notothenioids are the teleostean group that dominates marine Antarctic waters. However, during the Mesozoic a diverse ichthyofauna inhabited the sea that surrounded Antarctic.
Soledad Gouiric-Cavalli   +10 more
doaj   +1 more source

Actinopterygii

open access: yes, 2020
Key to species of fishes from the Coto River basin, Pacific coast, Costa Rica The following key is based on our research and data available in the literature (Bussing 1987, 1998, Angulo et al. 2015 and Robertson & Allen 2015). 1 Body asymmetrical, strongly compressed laterally; both eyes on the same side of head..............................
Angulo, Arturo   +4 more
openaire   +2 more sources

Diversity of Cretaceous continental actinopterygians from Argentina, South America [PDF]

open access: yesResearch & Knowledge, 2017
South America holds a signiicant number of continental ish-bearing deposits of Cretaceous age. The principal purpose of the current article is to illustrate the diversity of continental actinopterygian assemblages of the main Cretaceous localities from ...
P. Guillermina Giordano
doaj   +1 more source

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