Cainozoic zamanin

Era na ci gaba da Earth dade wata lambar daban na shekaru. Sun hada da kuma daban-daban lokaci. A Cenozoic Era ne latest ma'aunan kasa epoch. Its tsawon - 65 shekaru miliyan .. A Cenozoic Era ne zuwa kashi uku lokaci: da Anthropogenic, Neogene da Paleogene. Kowane daga cikinsu, bi da bi, zuwa kashi epochs.

Cenozoic zamanin da ya ci gaba a yau.

Paleogene hada Oligocene, Eocene, Paleocene, Neogene - Pliocene da Miocene, Anthropogene - Holocene da Pleistocene.

Ta yaya ne rayuwa a cikin Cenozoic zamanin

65 miliyan. Shekaru da suka wuce da Paleogene lokaci.

Da farko epoch ne Paleocene. Tun da shi ya fara Cenozoic zamanin. A wannan lokacin, da nahiyoyi ci gaba da motsi da kuma Gondwana (Mai girma babban yankin) ya ci gaba da raba. A hallaka shi daga cikin duniya ya juya ga Kudancin Amirka.

A ƙasar dabbobi masu shayarwa ya fara halittu farfadowa, farkon mannyan birai sun insectivores da hakori. Akwai manyan wakilan biyu herbivores da kuma yara. A marine ruwa suka fara samar da sabon nau'in sharks da kuma sauran predatory kifi.

Daga cikin shuke-shuke fara yada flowering nau'in.

Eocene zamanin fara hamsin da biyar da miliyan da suka wuce. A ɓangaren duniya fara zuwa kwanta kamar wannan, kamar yadda yake a yau. South America ya daina za a hade tare da Antarctica, India ma koma nahiyar Asiya. Fara watsa da kuma Australia zuwa Antarctica.

A ƙasar akwai lemurs, jemagu, manyan herbivores (magabatan shanu, da dawakai, da giwaye, aladu, da kuma sauran). Sauran jinsin dabbobi ma sun samo asali.

Karuwan yawan ruwa tare kifi, Whales baya a cikin ruwa.

Mun fara girma itatuwa a temperate latitudes, gandun daji na da yawa sassa daban daban na duniya a lush ciyayi.

Oligocene epoch fara talatin da takwas da shekaru miliyan da suka wuce. Australian nahiyar da kuma Antarctica ne gaba daya raba, kamar yadda India haye Equatorial line. A sauyin yanayi a duniya ya zama mai sanyaya. Sararin kankara hula kafa a kan ta Kudu iyakacin duniya. Wannan ya haddasa fadada daga cikin ƙasar yankin, da kuma rage ruwa girma. A dangane da sanyaya aka maye gurbinsu da kuma ciyayi. Maimakon cikin Rainforest baza steppe.

Herbivorous dabbobi masu shayarwa ya fara rayayye ci gaba a kan steppe yankunan. Akwai sabon iri hares, zomaye, karkanda, da farko wakilan dabbobi.

Ashirin da biyar da miliyan shekaru da suka wuce da Neogene lokaci. Yana hada biyu epochs.

A lokacin Miocene, kusan duk nahiyoyi ci gaba da matsawa. A sakamakon da karo na Afirka tare da Turai da kuma Asiya kafa Alps. Bayan a haɗa India da kuma Asia kafa Himalayas. A lokaci guda, da ciwon da Andes da kuma Rocky Mountains. A lokaci guda Australia da ta Kudu Amurka nahiyar zauna ware daga duniya. A kowace nahiyar raya da kansa musamman Flora da fauna. A baza na kankara sheet a kan Antarctica tsokani fi sanyaya.

A lokacin Miocene dabbobi hijira daga daya nahiyar zuwa wani.

Miliyan biyar da suka wuce ya fara Pliocene.

A nahiyoyi ne kusan a wannan wuri kamar yadda a yau. Ci gaba da sanyaya da kuma rarraba matakan.

Herbivorous dabbobi masu shayarwa da kuma rayayye ci gaba. A ci gaba da doki. A wurin haifuwa na dabba ne North America. Daga can, da dawakai yada a fadin duniya.

By ƙarshen Pliocene, Arewa da kuma Kudancin Amirka suka haɗa da juna. Kamar yadda ta samar da wata "ƙasar gada" ya fara motsi da dabbobi daga daya nahiyar zuwa wani. Da masu bincike bayar da shawarar cewa a wannan lokacin akwai nau'i nau'i na da yawa jinsunan saboda aggravated gwagwarmayar rayuwa.

Shekaru miliyan biyu da suka wuce, shi ya fara da Anthropogenic lokaci.

A farko epoch - da Pleistocene - halin da baza na kankara sheet. A wannan lokaci, alternating lokaci na Warming kuma sanyaya, zauna, da kuma teku matakin. Ya kamata a lura cewa, ko da a yanzu irin wannan halin da ake ciki ta ci gaba.

Mutane da yawa jinsin dabbobi sun saba da sauyin yanayi. mutane na farko ya bayyana.

Game da dubu goma da suka wuce, an fara tun daga Holocene - na biyu zamanin da Anthropogenic lokaci.

Climate kama da na zamani, alternating lokaci na sanyaya kuma Warming. Yana fara ci gaban bil'adama.