Thawj tus neeg hla tebchaws tam sim no xav tias tau hloov zuj zus hauv Gondwana (nyob rau sab qab teb Hemisphere) nyob rau hauv Paleocene lig lossis thaum ntxov Eocene, ncig 50 lab xyoo dhau los.
Thaum twg cov neeg hla dhau los?
Peb qhov kev tshuaj ntsuam xyuas kom sib haum ntawm kev sib txawv passerine nrog cov pob txha thiab cov ntaub ntawv geological; qhia tias passerines originated ntawm the Australian landmass ∼47 Ma; thiab qhia tau hais tias tom qab dispersal thiab ntau haiv neeg ntawm passerines raug cuam tshuam los ntawm ib tug xov tooj ntawm climatological thiab geological txheej xwm, xws li Oligocene …
Cov noog twg tsis yog passerines?
Ntxhais Ntxub Tsev Neeg
- Casuariidae. Cassowaries & Emu.
- Anatidae. Ducks, Geese & Swans.
- Podicipedidae. Grebes.
- Phoenicopteridae. Flamingos.
- Columbidae. Pigeons & Doves.
- Podargidae. Frogmouths.
- Nyctibiidae. Potoos.
- Aegothelidae. Owlet-nightjars.
Passeriformes muaj dab tsi?
Nws tau sau tseg tias Passeriformes muaj qhov sib txawv ntawm cov yam ntxwv, suav nrog cov phev morphology tshwj xeeb, qhov txawv ntawm cov pob txha palate, ib qho yooj yim tab sis ua haujlwm sib txawv ko taw nrog peb ntiv taw rau pem hauv ntej. thiab ib tug (lub hallux) taw rov qab, thiab ib tug txawv fore- (tis) thiab hindlimb musculature …
Cov noog hu li cas?
passerine. (redirected los ntawm Perching noog)
