Affichage des articles dont le libellé est Paléoart: Poissons. Afficher tous les articles
Affichage des articles dont le libellé est Paléoart: Poissons. Afficher tous les articles
Silurien (artbyjrc)
* Thelodus - largest thelodont agnathan fish, 1 m long.
* Dayongaspis - largest Silurian galeaspid agnathan fish, up to 30 cms long.
* Megamastax - largest Silurian sarcoptergygian fish, 1 m long.
* Stimulograptus - largest graptolite pterobranch, 2 m long.
* Acutiramus - largest Silurian pterygotid eurypterid, 2.1 m long
* Temperoceras - largest Silurian nautiloid cephalopod, up to 2 m long.
* Xylacanthus - largest Silurian acanthodian, ~68 cms long.
* Silurolepis - largest Silurian placoderm, 50 cms long.
* Eramoscorpius - largest Silurian scorpion, 16 cms long.
* Carcinosoma - largest carsinosomatid eurypterid, 2.2 m long.
* Megalomoidea - largest Silurian bivalve, 40 cm wide.
* Terropterus - largest mixopterid eurypterid, ~1 m long.
* Arctinurus - largest Silurian trilobite, 21 cm long.
* Scyphocrinites - largest Silurian crinoid, 3 m long.
* Ateleaspis - largest Silurian osteostracan agnathan fish, 20 cms long.
Astraspis (SpinoJP)
Astraspis ('star shield') is an extinct genus of primitive jawless fish from the Ordovician of Central North America including the Harding Sandstone of Colorado and Bighorn Mountains of Wyoming. It is also known from Bolivia.[2] It is related to other Ordovician fishes, such as the South American Sacabambaspis, and the Australian Arandaspis.
Plus d'infos ici.
Sheinwoodian fish (NTamura)
Represented here:
Lasanius probematicus Traquair, 1898 (Slot Burn Formation, Scotland) Anaspida
Ateleaspis tesselata Traquair, 1899 (Slot Burn Formation, Scotland) Osteostraci
Lanarkia horrida Traquair, 1898 (Slot Burn Formation, Scotland) Thelodonti
Birkenia elegans Traquair, 1898 (Slot Burn Formation, Scotland) Anaspida
Ciderius cooperi van der Brugghen, 2015 (Fish Bed Formation, Scotland) Anaspida
Shielia taiti (Stetson, 1931) Marss & Ritchie, 1998 (Fish Bed Formation, Scotland) Thelodonti
Archipelepis turbinata Marss in Soehn et al., 2001 ("Delorme Group". Canada) Thelodonti
Athenaegis chattertoni Soehn & Wilson, 1990 ("Delorme Group", Canada) Heterostraci
Pezopallichthys ritchei Wilson & Caldwell, 1998 ("Delorme Group", Canada) Thelodonti
Shuyu zhejianensis (P'an, 1986) Gai et al., 2011 (Maoshan formation, China) Galeaspida
Meishanaspis lehmani Wang, 1991 (Maoshan Formation, China) Galeaspida
Changxingaspis gui Wang, 1991 (Maoshan Formation, China) Galeaspida
Elasmosaurus (arvalis)
Elasmosaurus, élasmosaure en français, est un genre éteint, de plésiosauriens, de la famille des Plesiosauridae ayant vécu, en Amérique du Nord, au Crétacé supérieur (Campanien, il y a environ 80,5 millions d'années). Le premier spécimen est découvert, en 1867, près de Fort Wallace, dans le Kansas aux États-Unis.
Rhizodus (Mario Lanzas)
Rhizodus (root tooth) is an extinct genus of basal, finned tetrapodomorphs (the group of sarcopterygians that contains modern tetrapods and their extinct relatives). It belonged to Rhizodontida, one of the earliest-diverging tetrapodomorph clades. Two valid species have been described, both of which lived during the Early Carboniferous epoch. The type species R. hibberti is known from the Viséan stage of the United Kingdom, whereas the species R. serpukhovensis is from the Serpukhovian of Russia. Some fossils referred to the genus Rhizodus have also been found in North America.
Plus d'infos ici.
Didelphodon (Gabriel Ugueto)
Didelphodon (a probably semiaquatic marsupialiform from late Cretaceous North America) climbs on the horn of a dead triceratops that was caught in a flash flood earlier.
Some surprise guests patrol the cypress swamp in the background. Can you see what they are?
Sarcopterygian Madageria fairfaxi model (Paleozoo)
Wikipedia: Les sarcoptérygiens (Sarcopterygii) forment un des deux taxons majeurs des vertébrés osseux comprenant quelques genres basaux (aujourd'hui éteints), les actinistiens (les cœlacanthes et leurs parents éteints) ainsi que les rhipidistiens (comprenant les dipneustes, les tétrapodes ainsi que les groupes apparentés aujourd'hui disparus). Ce groupe monophylétique comprend donc à la fois les poissons à nageoires charnues ou poissons à membres charnus et les tétrapodes, dont l'origine évolutive trouve ses prémices dans certains caractères dérivés communs des sarcoptérygiens.
Inscription à :
Articles (Atom)