Best Oligocene
Paraceratherium transouralicum was a gigantic hornless rhinoceros relative that lived in Asia during the Oligocene epoch. It belonged to an extinct group of long-limbed browsing perissodactyls and had an elongated neck and skull suited to feeding on vegetation above the reach of smaller herbivores....
Aetiocetus weltoni is an extinct species of baleen whale from the late Oligocene epoch. Fossils of this mysticete have been discovered in marine deposits in Oregon, USA, specifically within the Yaquina Formation. It represents a crucial transitional form in cetacean evolution, possessing both functi...
Badland area in northwestern Nebraska featuring Oligocene-age toadstool-shaped rock formations eroded from volcanic ash and ancient river sediments.
Mammalodon colliveri is an extinct toothed mysticete whale from early Oligocene deposits of Victoria, Australia, first described by Nicholas Pledge in 1983. It is among the earliest known baleen whale relatives recovered from the Southern Hemisphere. The species was small, with an estimated body len...
Extinct Oligocene penguin from New Zealand's South Island also named in honour of palaeontologist Bryan Marples and known from partial skeletal remains.
Jingu Guyot is a large flat-topped ancient Pacific seamount in the Emperor chain, distinguished by its twin volcanic peaks that formed approximately 55 million years ago.
Oligocene penguin from New Zealand's Waikato region, described in 2021 and notable for its exceptionally long legs relative to other Kairuku species.
Extinct fossil penguin from New Zealand named after palaeontologist Bryan Marples, who made foundational contributions to the study of the country's fossil penguin record.
Tall Oligocene penguin (~27 mya) from New Zealand, among the largest fossil penguins known, co-described by Ksepka et al. in 2012 from South Island material.
Oligocene penguin from the Waitaki region of New Zealand's South Island, co-described alongside K. grebneffi by Ksepka et al. in 2012.
Archaeospheniscus lopdelli is an extinct species of giant penguin that lived during the Late Oligocene epoch in what is now New Zealand.
Archaeospheniscus lowei is an extinct species of large penguin from the Late Oligocene period, with fossil remains discovered in New Zealand.
Oligocene penguin from New Zealand, the second described species in the genus Platydyptes, recognized from South Island fossil material.
Oligocene penguin from New Zealand's South Island with distinctive flipper-bone morphology that has contributed to phylogenetic studies of penguin evolution.
Small Oligocene penguin from New Zealand's South Island, notable as one of the more diminutive members of the otherwise often large fossil penguin fauna.
Small Oligocene penguin from New Zealand's South Island, known from limited fossil material and representing one of the more diminutive fossil penguin species.
Tereingaornis moisleyi is an extinct species of penguin from the Pliocene epoch whose fossil remains were first discovered in North Canterbury, New Zealand.
