# Phanerozoic eon > 현생누대는 캄브리아기가 시작되는 538.8 mya부터 현재에 이르는 지질학적 기간이다. 현생누대는 [캄브리아기](https://wiki.g15e.com/pages/Cambrian%20period.txt)가 시작되는 538.8 mya부터 현재에 이르는 지질학적 기간이다. 아래와 같이 나뉜다. - [고생대(Paleozoic era)](https://wiki.g15e.com/pages/Paleozoic%20era.txt): 538.8 mya - 251.9 mya - [캄브리아기(Cambrian period)](https://wiki.g15e.com/pages/Cambrian%20period.txt): 538.8 - 486.85 mya - <테르뇌브세(Terreneuvian epoch)>: 538.8 - 521 mya - <캄브리아기 제2세(Cambrian Series 2)>: 521 - 506.5 mya - <푸룽세(Furongian epoch)> 506.5 - 486.85 mya - [오르도비스기(Ordovician period)](https://wiki.g15e.com/pages/Ordovician%20period.txt): 486.85 - 443.1 mya - <전기 오르도비스기(Early Ordovician)>: 486.85 - 471.3 mya - <중기 오르도비스기(Middle Ordovician)>: 471.3 - 458.2 mya - [후기 오르도비스기(Late Ordovician)](https://wiki.g15e.com/pages/Late%20Ordovician.txt) 458.2 - 443.1 mya - [실루리아기(Silurian period)](https://wiki.g15e.com/pages/Silurian%20period.txt): 443.1 - 419.62 mya - <란도베리세(Llandovery epoch)>: 443.1 - 433.4 mya - <웬록세(Wenlock epoch)>: 433.4 - 426.7 mya - <러들로세(Ludlow epoch)>: 426.7 - 423.0 mya - <프리돌리세(Pridoli epoch)>: 423.0 mya - 419.62 mya - [데본기(Devonian period)](https://wiki.g15e.com/pages/Devonian%20period.txt): 419.62 - 358.86 mya - <전기 데본기(Early Devonian)>: 419.62 - 393.47 mya - <중기 데본기(Middle Devonian)>: 393.47 - 382.7 mya - [후기 데본기(Late Devonian)](https://wiki.g15e.com/pages/Late%20Devonian.txt): 382.7 - 358.86 mya - [석탄기(Carboniferous period)](https://wiki.g15e.com/pages/Carboniferous%20period.txt): 358.86 - 298.9 mya - <전기 미시시피기(Early Mississippian)>: 358.9 - 346.7 mya - <중기 미시시피기(Middle Mississippian)>: 346.7 - 330.3 mya - <후기 미시시피기(Late Mississippian)>: 330.3 - 323.2 mya - <전기 펜실베니아기(Early Pennsylvanian)>: 323.2 - 315.2 mya - <중기 펜실베니아기(Middle Pennsylvanian)>: 315.2 - 307.0 mya - <후기 펜실베니아기(Late Pennsylvanian)>: 307.0 - 298.9 mya - [페름기(Permian period)](https://wiki.g15e.com/pages/Permian%20period.txt): 298.9 - 251.902 mya - <시스우랄세(Cisuralian epoch))>: 298.9 - 272.95 mya - <과달루페세(Guadalupian epoch)>: 272.95 - 259.1 mya - [러핑세(Lopingian epoch)](https://wiki.g15e.com/pages/Lopingian%20epoch.txt): 259.1 - 251.902 mya - [중생대(Mesozoic era)](https://wiki.g15e.com/pages/Mesozoic%20era.txt): 251.9 mya - 66 mya - [트라이아스기(Triassic period)](https://wiki.g15e.com/pages/Triassic%20period.txt): 251.902 - 201.4 mya - <전기 트라이아스기(Early Triassic)>: 251.902 - 247.2 mya - <중기 트라이아스기(Middle Triassic)>: 247.2 - 237 mya - <후기 트라이아스기(Late Triassic)>: 237 - 201.4 mya - [쥐라기(Jurassic period)](https://wiki.g15e.com/pages/Jurassic%20period.txt): 201.4 - 143.1 mya - [전기 쥐라기(Early Jurassic)](https://wiki.g15e.com/pages/Early%20Jurassic.txt): 201.4 - 174.1 mya - <중기 쥐라기(Middle Jurassic)>: 174.1 - 163.5 mya - <후기 쥐라기(Late Jurassic)>: 163.5 - 143.1 mya - [백악기(Cretaceous period)](https://wiki.g15e.com/pages/Cretaceous%20period.txt): 143.1 - 66 mya - <전기 백악기(Early Cretaceous)>: 143.1 - 100.5 mya - <후기 백악기(Late Cretaceous)>: 100.5 - 66 mya - [신생대(Cenozoic era)](https://wiki.g15e.com/pages/Cenozoic%20era.txt): 66 mya - 현재 - [고진기(Paleogene period)](https://wiki.g15e.com/pages/Paleogene%20period.txt): 66 - 23.04 mya - [팔레오세(Paleocene epoch)](https://wiki.g15e.com/pages/Paleocene%20epoch.txt): 66 - 56 mya - <에오세(Eocene epoch)>: 56 - 33.9 mya - <올리고세(Oligocene epoch)>: 33.9 - 23.04 mya - [신진기(Neogene period)](https://wiki.g15e.com/pages/Neogene%20period.txt): 23.04 - 2.58 mya - <마이오세(Miocene epoch)>: 23.04 - 5.333 mya - <플라이오세(Pliocene epoch)>: 5.333 - 2.58 mya - [제4기(Quaternary period)](https://wiki.g15e.com/pages/Quaternary%20period.txt): 2.58 - 현재 - <플라이스토세(Pleistocene epoch)>: 2.58 - 0.0117 mya - [홀로세(Holocene epoch)](https://wiki.g15e.com/pages/Holocene%20epoch.txt): 0.0117 mya - 현재