Olenekian life

Rhynchosaurs are a group of extinct herbivorous Triassic archosauromorph reptiles, belonging to the order Rhynchosauria. Members of the group are distinguished by their triangular skulls and elongated, beak like premaxillary bones. Rhynchosaurs first appeared in the Early Triassic, reaching their broadest abundance and a global distribution during the Carnian stage of the Late Triassic.

Galesaurus (from the Greek roots for 'weasel' and 'lizard') is an extinct genus of carnivorous cynodont therapsid that lived between the Induan and the Olenekian stages of the Early Triassic in what is now South Africa. It was incorrectly classified as a dinosaur by Sir Richard Owen in 1859.

thumb|left|Early Triassic and Anisian marine predators: 7. Aphaneramma

Grippia is a genus of early ichthyopterygian, an extinct group of reptiles that resembled dolphins. Its only species is Grippia longirostris. It was a relatively small ichthyopterygian, measuring around long. Fossil remains from Svalbard from the specimen SVT 203 were originally assigned to G. longirostris but are now thought to have belonged to a non-ichthyopterygian diapsid related to Helveticosaurus.

Wetlugasaurus (meaning "Vetluga River lizard") is an extinct genus of temnospondyl from the Early Triassic (Olenekian) Charkabozh, Kzylsaiskaya, Petropavlovka, Kamennyi Yar and Vetluga Series Formations of northern Russia and Greenland. It had a long skull, and reached a total length of .

Czatkobatrachus is an extinct genus of Early Triassic (Olenekian) salientian amphibians. It was first described in 1998 based on fossils found in the 1 quarry in Poland. It is, with Triadobatrachus, one of the two oldest known lissamphibians. More precisely, it is a member of Salientia; it is related to, but outside Anura, the taxon that includes all extant frogs. It is known only from the early Triassic of Poland. Its vertebral column may have been short as in other salientians, but the exact count is unknown. It had a short tail, and an elongated ilium. Although based on isolated and disarti

Batrachosuchus is a genus of temnospondyl that existed from the Early to Middle Triassic of southern Africa (Ntawere Formation of Zambia and Burgersdorp Formation of South Africa) and the Blina Shale of Australia. The holotype is a skull registered at the Natural History Museum UK (NHMUK PV R 3589).

Sclerothorax is an extinct genus of temnospondyl from the Early Triassic of Germany. It is distinguished from other temnospondyls by its short and very wide skull and the elongated neural spines that form a ridge along its back. Sclerothorax is a basal member of Capitosauria, a large clade of temnospondyls that lived throughout the Triassic.

Thaisaurus is an extinct genus of ichthyopterygian marine reptile that lived during the Spathian (late Olenekian, Early Triassic). Fossils have been found in Thailand.

Nanolania is an extinct genus of rhytidosteid temnospondyl from the early Triassic period (Induan stage) of south central Queensland, Australia. It is known from the holotype QMF 12293, a postorbital fragment associated with lower jaw fragments and from the associated paratypes QMF 14480, a laterally complete skull with mandibles, QMF 35247, a poorly preserved skull with right mandibular ramus, QMF 35393, a badly preserved partial skull and QMF 39666, a posterior orbital and mandibular fragment, recovered from the Arcadia Formation in the Rewan Group. This genus was named by Adam M. Yates in 2

Isfjordosaurus is an extinct genus of ichthyopterygian marine reptile that lived during the Early Triassic. Fossils have been found on the island of Spitsbergen, part of the Svalbard archipelago off the northern coast of Norway. It was formally described by Ryosuke Motani in 1999 and contains the species Isfjordosaurus minor.

Xenobrachyops is an extinct genus of temnospondyl amphibian from the Olenekian Arcadia Formation of Australia, describing a single species, Xenobrachyops allos. It is estimated to have been around fifty centimetres long and its diet would have consisted of fish and insects.