登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo Galleries今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

Oligocene

Hierarchy:Phanerozoic Cenozoic  Paleogene
   Oligocene
Classification:Epoch (as per International Commission on Stratigraphy)
Top:23.03 Ma
Base:33.9 Ma
Preceeds:Neogene Miocene  Aquitanian
Follows:Eocene Priabonian
Primary Divisions:ChattianRupelian
Name origin:The name Oligocene comes from the Ancient Greek ὀλίγος (oligos, "few") and καινός (kainos, "new"), and refers to the sparsity of extant forms of molluscs.
Fossil Record

Data via PaleoBioDB


Taxa Count Key
First appearance
Extinction
First appearance and extinction
Related precursors
KingdomPhylumClassTaxa Count
AnimaliaAnnelida Clitellata4
AnimaliaAnnelida Polychaeta44
AnimaliaArthropoda Arachnida429
AnimaliaArthropoda Branchiopoda11
AnimaliaArthropoda Cephalocarida1
AnimaliaArthropoda Chilopoda18
AnimaliaArthropoda Insecta4,265
AnimaliaArthropoda Malacostraca800
AnimaliaArthropoda Maxillopoda64
AnimaliaArthropoda Ostracoda248
AnimaliaArthropoda Pauropoda3
AnimaliaArthropoda Pycnogonida1
AnimaliaArthropoda Remipedia1
AnimaliaArthropoda Symphyla5
AnimaliaBrachiopoda Craniata8
AnimaliaBrachiopoda Lingulata12
AnimaliaBrachiopoda Rhynchonellata169
AnimaliaBrachiopoda Strophomenata7
AnimaliaBryozoa Gymnolaemata600
AnimaliaBryozoa Stenolaemata84
AnimaliaChordata Actinopterygii3
AnimaliaChordata Ascidiacea1
AnimaliaChordata Aves278
AnimaliaChordata Mammalia4,172
AnimaliaChordata Reptilia551
AnimaliaCnidaria Anthozoa748
AnimaliaCnidaria Cubozoa1
AnimaliaCnidaria Hydrozoa21
AnimaliaCnidaria Scyphozoa1
AnimaliaEchinodermata Asteroidea59
AnimaliaEchinodermata Crinoidea38
AnimaliaEchinodermata Echinoidea378
AnimaliaEchinodermata Holothuroidea55
AnimaliaEchinodermata Ophiuroidea47
AnimaliaHemichordata Enteropneusta4
AnimaliaHemichordata Pterobranchia1
AnimaliaMollusca Bivalvia1,458
AnimaliaMollusca Cephalopoda35
AnimaliaMollusca Gastropoda2,446
AnimaliaMollusca Monoplacophora1
AnimaliaMollusca Polyplacophora26
AnimaliaMollusca Scaphopoda44
AnimaliaPlatyhelminthes Trematoda1
AnimaliaPorifera Calcarea4
AnimaliaPorifera Hexactinellida48
AnimaliaTardigrada Eutardigrada5
BacteriaCyanobacteria Cyanophyceae2
ChromistaForaminifera Globothalamea342
ChromistaForaminifera Monothalamea31
ChromistaForaminifera Tubothalamea50
ChromistaHaptophyta Prymnesiophyceae39
ChromistaMyzozoa Dinophyceae3
ChromistaOchrophyta Bacillariophyceae55
ChromistaOchrophyta Chrysophyceae1
ChromistaOchrophyta Dictyochophyceae6
ChromistaRadiozoa Polycystina169
PlantaeAnthocerotophyta Anthocerotopsida1
PlantaeBryophyta Bryopsida4
PlantaeBryophyta Sphagnopsida2
PlantaeCharophyta Charophyceae8
PlantaeCharophyta Zygnematophyceae3
PlantaeChlorophyta Chlorophyceae6
PlantaeChlorophyta Trebouxiophyceae2
PlantaeChlorophyta Ulvophyceae14
PlantaeMarchantiophyta Jungermanniopsida1
PlantaeMarchantiophyta Marchantiopsida3
PlantaeRhodophyta Florideophyceae74
PlantaeRhodophyta Rhodophyceae1
PlantaeTracheophyta Cycadopsida5
PlantaeTracheophyta Ginkgoopsida5
PlantaeTracheophyta Gnetopsida3
PlantaeTracheophyta Liliopsida40
PlantaeTracheophyta Lycopodiopsida6
PlantaeTracheophyta Magnoliopsida247
PlantaeTracheophyta Pinopsida24
PlantaeTracheophyta Polypodiopsida34
ProtozoaAmoebozoa Lobosa1
Warm but cooling climate, moving towards Icehouse; Rapid evolution and diversification of fauna, especially mammals.

Major evolution and dispersal of modern types of flowering plants, a global expansion of grasslands, and a regression of tropical broad leaf forests to the equatorial belt.
 

Geologic Events

Event NameTypeAgeArea
Andean orogeny (ongoing)OrogenyMaximum Age: 200 MaSouth America


Overview of geological time

List all geological events
 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.1.24 10:56:21
Go to top of page