|
Casuariiformes
The Casuariiformes is an order of large flightless birds that has four surviving members: the three species of cassowary, and the only remaining species of emu. They are divided into either a single family, Casuariidae, or occasionally two, with the emu splitting off into its own family, Dromaiidae. The IOC World Bird List and Cornell Lab of Ornithology's Birds of the World both do not recognize Dromaiidae, placing the emu in the family Casuariidae. All four living members are native to Australia-New Guinea,Clements, J (2007) but some possible extinct taxa occurred in other landmasses. Systematics and evolution The emus form a distinct branch, characterized by legs adapted for running. The total number of cassowary species described, based on minor differences in casque shape and color variations, formerly reached nine. Now, however, only three species are recognized, and most authorities only acknowledge few subspecies or none at all. The fossil record of casuariforms is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diogenornis
''Diogenornis'' is an extinct genus of ratites, that lived from the Middle Paleocene to the Early Eocene (Riochican to Casamayoran in the SALMA classification).''Diogenornis'' at .org It was described in 1983 by Brazilian scientist Herculano Marcos Ferraz de Alvarenga based on fossils found in the in southeastern .Alvarenga, H.M.F. (1983) Uma ave ratitae do Paleoceno Brasileiro: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emu Portrait
The emu (; ''Dromaius novaehollandiae'') is a species of flightless bird endemic to Australia, where it is the tallest native bird. It is the only extant member of the genus ''Dromaius'' and the third-tallest living bird after its African ratite relatives, the common ostrich and Somali ostrich. The emu's native ranges cover most of the Australian mainland. The Tasmanian, Kangaroo Island and King Island subspecies became extinct after the European settlement of Australia in 1788. The emu has soft, brown feathers, a long neck, and long legs. It can grow up to in height. It is a robust bipedal runner that can travel great distances, and when necessary can sprint at . It is omnivorous and forages on a variety of plants and insects, and can go for weeks without eating. It drinks infrequently, but takes in copious amounts of fresh water when the opportunity arises. Breeding takes place in May and June, and fighting among females for a mate is common. Females can mate several t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casuarius Casuarius
Cassowaries (; Biak: ''man suar'' ; ; Papuan: ''kasu weri'' ) are flightless birds of the genus ''Casuarius'', in the order Casuariiformes. They are classified as ratites, flightless birds without a keel on their sternum bones. Cassowaries are native to the tropical forests of New Guinea (Western New Guinea and Papua New Guinea), the Moluccas (Seram and Aru Islands), and northeastern Australia.. Three cassowary species are extant. The most common, the southern cassowary, is the third-tallest and second-heaviest living bird, smaller only than the ostrich and emu. The other two species are the northern cassowary and the dwarf cassowary; the northern cassowary is the most recently discovered and the most threatened. A fourth, extinct, species is the pygmy cassowary. Cassowaries are very wary of humans, but if provoked, they are capable of inflicting serious, even fatal, injuries. They are known to attack both dogs and people. The cassowary has often been labelled "the world ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casuarius Lydekkeri
''Casuarius lydekkeri'' is an extinct species of cassowary. Description Remains attributed to the species are generally around the size of the living dwarf cassowary (''Casuarius bennetti''). Remains attributed to ''C. lydekkeri'' differ from living cassowaries in a number of morphological characters, including "a shallower, narrower pelvis, more gracile femur and a narrower proximal loser to hipend to the tarsometatarsus". Taxonomy The species was originally described by Walter Rothschild based on a partial right tibiotarsus of probable Pleistocene age. The exact provenance is unknown, and was originally reported as coming from cave deposits near Wellington in New South Wales, though this is now considered unlikely. It has alternatively been proposed that it may originate from the Darling Downs in Queensland based on its preservation. Other remains attributed to ''C. lydekkeri'' have been reported from the Pliocene and Pleistocene of Australia and New Guinea, including a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassowary
Cassowaries (; Biak: ''man suar'' ; ; Papuan: ''kasu weri'' ) are flightless birds of the genus ''Casuarius'', in the order Casuariiformes. They are classified as ratites, flightless birds without a keel on their sternum bones. Cassowaries are native to the tropical forests of New Guinea (Western New Guinea and Papua New Guinea), the Moluccas (Seram and Aru Islands), and northeastern Australia.. Three cassowary species are extant. The most common, the southern cassowary, is the third-tallest and second-heaviest living bird, smaller only than the ostrich and emu. The other two species are the northern cassowary and the dwarf cassowary; the northern cassowary is the most recently discovered and the most threatened. A fourth, extinct, species is the pygmy cassowary. Cassowaries are very wary of humans, but if provoked, they are capable of inflicting serious, even fatal, injuries. They are known to attack both dogs and people. The cassowary has often been labelled "the wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emuarius
''Emuarius'' is an extinct genus of casuariiform flightless bird from Australia that lived during the early Miocene and late Oligocene. It is one of two known genera of emu. There are two known species in the genus, ''Emuarius gidju'' and ''Emuarius guljaruba''. The birds in this genus are known as emuwaries. This name comes from a combination of emu and cassowary. This is due to its cassowary-like skull and femur and emu-like lower leg and foot. Because of these similarities it is phylogenetically In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical data ... placed between cassowaries and emus. References * * Miocene birds Oligocene birds of Australia Extinct flightless birds Riversleigh fauna Miocene birds of Australia Casuariidae Fossil taxa described in 1992 Emus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casuarius
Cassowaries (; Biak: ''man suar'' ; ; Papuan: ''kasu weri'' ) are flightless birds of the genus ''Casuarius'', in the order Casuariiformes. They are classified as ratites, flightless birds without a keel on their sternum bones. Cassowaries are native to the tropical forests of New Guinea (Western New Guinea and Papua New Guinea), the Moluccas (Seram and Aru Islands), and northeastern Australia.. Three cassowary species are extant. The most common, the southern cassowary, is the third-tallest and second-heaviest living bird, smaller only than the ostrich and emu. The other two species are the northern cassowary and the dwarf cassowary; the northern cassowary is the most recently discovered and the most threatened. A fourth, extinct, species is the pygmy cassowary. Cassowaries are very wary of humans, but if provoked, they are capable of inflicting serious, even fatal, injuries. They are known to attack both dogs and people. The cassowary has often been labelled "the world ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Cassowary
The southern cassowary (''Casuarius casuarius''), also known as double-wattled cassowary, Australian cassowary, or two-wattled cassowary, is a large Flightless bird, flightless black bird, found in Indonesia, Papua New Guinea, and northeastern Australia. It is one of the three living species of cassowary, alongside the dwarf cassowary and the northern cassowary. It is a ratite and therefore related to the emu, ostrich, Rhea (bird), rhea and Kiwi (bird), kiwi. The Australian population is listed as Endangered species, Endangered under federal and Queensland state legislation. Taxonomy Presently, most authorities consider the southern cassowary monotypic, but several subspecies have been described. It has proven very difficult to confirm the validity of these due to individual variations, age-related variations, the relatively few available Zoological specimen, specimens (and the bright skin of the head and neck – the basis upon which several subspecies have been described � ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ratite
Ratites () are a polyphyletic group consisting of all birds within the infraclass Palaeognathae that lack keels and cannot fly. They are mostly large, long-necked, and long-legged, the exception being the kiwi, which is also the only nocturnal extant ratite. The understanding of relationships within the paleognath clade has been in flux. Previously, all the flightless members had been assigned to the order Struthioniformes, which is more recently regarded as containing only the ostrich. The modern bird superorder Palaeognathae consists of ratites and the flighted Neotropic tinamous (compare to Neognathae). Unlike other flightless birds, the ratites have no keel on their sternum—hence the name, from the Latin ('raft', a vessel which has no keel—in contradistinction to extant flighted birds with a keel). Without this to anchor their wing muscles, they could not have flown even if they had developed suitable wings. Ratites are a polyphyletic group; tinamous fall within the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dromaius
''Dromaius'' (from greek language, greek δρομαίυς "runner") is a genus of ratite present in Australia. There is one extant species, ''Dromaius novaehollandiae,'' commonly known as the emu. In his original 1816 description of the emu, Louis Pierre Vieillot used two genus, generic names; first ''Dromiceius'', then ''Dromaius'' a few pages later. Which label is correct has been a point of contention ever since; the latter is more correctly formed, but the convention in taxonomy (biology), taxonomy is that the first name given stands, unless it is clearly a typographical error, as argued by W.B. Alexander. For names published on the same day, or in the same publication, the International Code of Zoological Nomenclature states that both names have equal precedence, and that the Principle of First Reviser (Article 24.2 ) determines which name is to be used. Most modern publications, including those of the Australian government, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casuarius Bennetti
The dwarf cassowary (''Casuarius bennetti''), also known as Bennett's cassowary, little cassowary, mountain cassowary or muruk, is the smallest of the three extant species of cassowaries. Taxonomy The scientific name commemorates the Australian naturalist George Bennett. He was the first scientist to examine these birds after a few were brought to Australia aboard a ship. Recognising them as a new species of cassowary, he sent specimens back to England, where other taxonomists confirmed his perception. On the west side of Cenderawasih Bay, western Papua, there is a distinctive form that may merit a split. ''C. papuanus'' is the tentative name. There are two recognized subspecies *''C. b. bennetti'' - found throughout New Guinea except the Vogelkop Peninsula, as well as Yapen Island and New Britain *''C. b. westermanni'' - found on the Vogelkop Peninsula A third subspecies, ''Casuarius bennetti papuanus'', may exist based on a specimen collected in 1875 of unknown origin. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rheidae
Rheidae is a family of flightless ratite birds which first appeared in the Paleocene. It is today represented by the sole living genus '' Rhea'', but also contains several extinct genera. Taxonomy Order Rheiformes (Forbes, 1884) Furbringer, 1888 heimorphae Bonaparte, 1849; Rheae Forbes 1884ref name="mikko"> * Family † Opisthodactylidae Ameghino 1895 ** Genus ?†'' Diogenornis'' de Alvarenga 1983 (Late Paleocene) – possibly a member of Casuariiformes The Casuariiformes is an order of large flightless birds that has four surviving members: the three species of cassowary, and the only remaining species of emu. They are divided into either a single family, Casuariidae, or occasionally two, wit ... instead. ** Genus †'' Opisthodactylus'' Ameghino 1895 (Miocene) – rheid? * Family Rheidae (Bonaparte 1849) Bonaparte, 1853 ** Genus †'' Heterorhea'' Rovereto 1914 (Pliocene) ** Genus †'' Hinasuri'' Tambussi 1995 ** Genus '' Rhea'' Brisson 1760 References {{Author ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
