Results 1 to 10 of about 24,412 (307)

The tail of the Jurassic fish Leedsichthys problematicus (Osteichthyes: Actinopterygii) collected by Alfred Nicholson Leeds - an example of the importance of historical records in palaeontology [PDF]

open access: green, 2004
The specimen of the tail of <i>Leedsichthys problematicus</i>, now in The Natural History Museum, London, was one of the most spectacular fossil vertebrates from the Oxford Clay Formation of Peterborough, but as an isolated find it shares no ...
HOFFSTETTER R.   +9 more
core   +3 more sources

Late Permian ichthyofauna from the North-Sudetic Basin, SW Poland [PDF]

open access: yesActa Palaeontologica Polonica, 2021
The late Permian time was a transformative period before the most severe mass extinction known. Even though fishes constitute a key component of marine ecosystems since the Silurian, their biogeographic patterns during the late Permian are currently ...
Darja Dankina   +3 more
doaj   +1 more source

A comparison of teeth in Tithonian, Late Jurassic, predatory actinopterygian fishes from Owadów-Brzezinki Lägerstatte and its palaeoecological implications [PDF]

open access: yesActa Palaeontologica Polonica, 2023
The Owadów-Brzezinki palaeontological site is known for its very well-preserved fossils of Late Jurassic vertebrates, such as numerous fossil fish teeth and occasional dental bones.
Łukasz Weryński   +2 more
doaj   +1 more source

Diversity of chondrostean fish Coccolepis from the Late Jurassic Solnhofen Archipelago, Southern Germany [PDF]

open access: yesActa Palaeontologica Polonica, 2021
Late Jurassic marine vertebrates are extraordinarily well preserved in several Plattenkalk Lagerstätten in central Europe. Among them, the Solnhofen Archipelago has yielded the very rare fish Coccolepis bucklandi, which was the first fossil ...
ADRIANA LÓPEZ-ARBARELLO, MARTIN EBERT
doaj   +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

Unappreciated Cenozoic ecomorphological diversification of stem gars revealed by a new large species [PDF]

open access: yesActa Palaeontologica Polonica, 2022
The evolutionary history of gars, an ancient group of ray-finned fishes, is excellently documented in the fossil record. These fishes are notable for how little the anatomy of extant species differs from that of their earliest known relatives from ...
CHASE DORAN BROWNSTEIN
doaj   +1 more source

Incidence of Clinostomum complanatum (Trematoda: Clinostomidae) in Trichogaster fasciata (Actinopterygii: Osphronemidae), the first report from Deepor Beel, Assam, India

open access: yesJournal of Threatened Taxa, 2023
Fish constitute a major component of diet for the people of northeastern India and one of the main food items for most people in Assam. But fishes are facing serious risks due to parasitic infestations which deteriorate the food value and also leads to ...
Dr. Sanjay Molur   +163 more
semanticscholar   +1 more source

Novel data support validity of Phoxinus chrysoprasius (Pallas, 1814) (Actinopterygii, Leuciscidae)

open access: yesEuropean Journal of Taxonomy, 2023
The common minnow species Cyprinus chrysoprasius, previously synonymised to Phoxinus phoxinus, was originally described from the Crimean Peninsula (Black Sea – Sea of Azov basin).
N. Bogutskaya   +2 more
semanticscholar   +1 more source

Phylogeographic relationships and morphological evolution between cave and surface Astyanax mexicanus populations (De Filippi 1853) (Actinopterygii, Characidae)

open access: yesMolecular Ecology, 2023
The Astyanax mexicanus complex includes two different morphs, a surface‐ and a cave‐adapted ecotype, found at three mountain ranges in Northeastern Mexico: Sierra de El Abra, Sierra de Guatemala and Sierra de la Colmena (Micos).
M. Garduño‐Sánchez   +10 more
semanticscholar   +1 more source

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

Home - About - Disclaimer - Privacy