Holocene extinctions

species of mammal

Spelaeomys florensis, also known as the Flores cave rat, is an extinct species of rat that was formerly endemic to the island of Flores, Indonesia. and Flemming assessed this species to be extinct in 1996, but believed it probably died out before 1500. This specimen is only known from subfossil remains, including at Liang Bua cave. It is the only member of the genus Spelaeomys. It was large sized species with a body mass of around . It is suggested to have been arboreal animal that lived in closed forests, and to have been herbivorous, consuming leaves and flowers.

subspecies of mammal

Scelidotheriidae is a family of extinct ground sloths within the order Pilosa, suborder Folivora and superfamily Mylodontoidea, related to the other extinct mylodontoid family, Mylodontidae, as well as to the living two-toed sloth family Choloepodidae. The only other extant family of the suborder Folivora is the distantly related Bradypodidae. Erected as the family Scelidotheriidae by Ameghino in 1889, the taxon was demoted to a subfamily of Mylodontidae by Gaudin in 1995. However, recent collagen sequence data indicates the group is less closely related to Mylodon and Lestodon than Choloepus

species of seabird in the order Procellariiforme

species of bird (fossil)

species of bird

Catonyx is an extinct genus of ground sloth of the family Scelidotheriidae, endemic to South America during the Pliocene and Pleistocene epochs. It lived from 2.5 Ma to about 10,000 years ago, existing for approximately . The most recent date obtained is about 9600 B.P.

species of bird

The nēnē-nui (Hawaiian: "great nēnē") or wood-walking goose (translation of scientific name Branta hylobadistes) is an extinct species of goose that once inhabited Maui and possibly (or closely related species) Kauai, Oahu and perhaps Molokai in the Hawaiian Islands. It is known from a large number of subfossil bones (several thousand bones from many dozens of individuals) found in Holocene cave sediments.

species of bird

species of bird (fossil)

Lapitiguana impensa is an extinct giant (1.5 m long) iguanid from Fiji. It likely became extinct following the human colonization of Fiji 3000 years ago.

Ikanogavialis is an extinct genus of gavialid crocodilian. Fossils have been found in the Urumaco Formation in Urumaco, Venezuela and the Solimões Formation of Brazil. The strata from which remains are found are late Miocene in age, rather than Pliocene as was once thought. A possible member of this genus survived into the Late Holocene on Muyua or Woodlark Island in Papua New Guinea.

species of bird (fossil)

Xenorhinotherium is an extinct genus of macraucheniine macraucheniids, native to northern South America during the Pleistocene and Holocene epoch, closely related to Macrauchenia of Patagonia. The type species is X. bahiense.

species of bird

species of seabird in the order Procellariiforme

Thambetochen is an extinct genus of moa-nalo duck. It contains two species, the Maui Nui moa-nalo (T. chauliodous) and the smaller O'ahu moa-nalo (T. xanion). thumb|upright|left|Restoration of T. xanion thumb|upright|left|Restoration of T. chauliodous and Ptaiochen pau The former was found on Maui and Molokai on Hawaii, the latter was found on Oahu. These birds were large, flightless ducks, with robust legs but small wings, which had evolved in isolation, on islands without terrestrial mammals. Their beaks had tooth-like lamellae and their diet was plants which they digested throug

species of bird

species of bird

species of bird

Sylviornithidae is an extinct family of flightless birds, known from subfossil bones found in Holocene aged deposits on the Melanesian islands of New Caledonia and Fiji. For many years it was considered a monotypic family consisting of the New Calendonia Sylviornis alone, but recent studies show that the Fijian Megavitiornis was part of this clade as well. Long considered to have galliform affinities, a 2016 study suggested that they were outside the Galliformes crown group, while a 2024 study suggested that they were members of the Galliformes crown group as more closely related to Phasianoid

The stilt-owls (Grallistrix) is an extinct genus of true owls which contains four species, all of which lived on the Hawaiian Islands.

species of bird (fossil)

species of bird

species of mammal

species of bird (fossil)

species of bird (fossil)

species of mammal

Ahytherium is an extinct genus of megalonychid sloth that lived during the Pleistocene of what is now Brazil. It is a monotypic genus that contains a single species, A. aureum. == Discovery and taxonomy == The almost-complete skeleton of Ahytherium alongside remains of another extinct sloth species, Australonyx, were discovered in Poço Azul, an underwater cave in Chapada Diamantina National Park in 2005. It was described by Castor Cartelle of Pontifícia Universidade Católica de Minas Gerais. The bones, which had a length of about when put together, belong to an animal which presumably was stil

Neolicaphrium is an extinct genus of ungulate mammal belonging to the extinct order Litopterna. This animal lived from the Late Pliocene (Chapadmalalan) to the Late Pleistocene (Lujanian) in southern South America, being the last survivor of the family Proterotheriidae.

extinct species of bird

species of bird

species of bird (fossil)

species of bird (fossil)

species of bird (extinct)

Sylviornis is an extinct genus of large, flightless bird that was endemic to the islands of New Caledonia in the Western Pacific. It is considered to constitute one of two genera in the extinct family Sylviornithidae, alongside Megavitiornis from Fiji, which are related to the Galliformes, the group containing the turkeys, chickens, quails and pheasants. Sylviornis was never encountered alive by scientists, but it is known from many thousands of subfossil bones found in deposits, some of them from the Holocene, on New Caledonia and the adjacent Île des Pins. It was likely hunted to extinction,

species of bird

species of bird

species of bird (fossil)

species of bird

species of bird (extinct)

species of seabird in the order Procellariiforme

extinct species of buffalo

species of bird

species of bird (fossil)

species of bird (fossil)

Nothrotherium is an extinct genus of medium-sized ground sloth from South America (Bolivia, Brazil and the Ware Formation, La Guajira, Colombia). It differs from Nothrotheriops in smaller size and differences in skull and hind leg bones.

Megavitiornis altirostris is an extinct, flightless, giant stem-galliform bird that was endemic to Fiji, it is the only known species in the genus Megavitiornis. Originally thought to be a megapode, more recent morphological studies indicate a close relationship with Sylviornis of New Caledonia, with both genera belonging to the family Sylviornithidae outside of the Galliformes crown group. It is likely that it became extinct through overhunting shortly after the colonisation of the Fiji Islands by humans.

species of bird (fossil)

species of bird (fossil)

Nesotrochis is a genus of extinct flightless birds that were endemic to the islands of the Greater Antilles in the Caribbean. They have often been called cave rails, though they are no longer considered true rails, but an independent lineage of gruiform birds.

species of bird

species of bird (fossil)

species of amphibian

species of bird (fossil)

species of bird (fossil)

Capromeryx (dwarf pronghorn) is an extinct genus of dwarf pronghorns (Antilocapridae) that originated in North America during the Pliocene about 5 million years ago (the exact range of their presence on the landscape is still not known, but the most recent fossils found are dated to 11,000 years ago). Antilocaprines began to decline in diversity during the Late Miocene, and the closest living relative and only surviving antilocaprine is the North American pronghorn (Antilocapra americana).

species of bird