ypresian stage

  • 41Cretaceous — Period 145.5–65.5 million years ago …

    Wikipedia

  • 42Younger Dryas — Three temperature records, the GRIP sequence (red) showing the Younger Dryas event at around 11.0 ka BP. The vertical axis shows δ18O, which is a temperature proxy showing the water molecule isotopic composition of 18O in an ice core …

    Wikipedia

  • 43Devonian — For the Celtic language, see Southwestern Brythonic language; for the residents of the English county, see Devon. Devonian Period 416–359.2 million years ago …

    Wikipedia

  • 44Orellan — The Orellan North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 33,900,000 to 33,300,000 years BP, a period of 0.6 million… …

    Wikipedia

  • 45Tiffanian — The Tiffanian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 60,200,000 to 56,800,000 years BP lasting 3.4 million years[1] …

    Wikipedia

  • 46Mississippian — For other uses, see Mississippian (disambiguation). Not to be confused with the Mississippian period describing the dominance of the Mississippian culture. System Subsystem/ Series Stage Age (Ma) Permian Cisuralian Asselian …

    Wikipedia

  • 47Miocene — System Series Stage Age (Ma) Quaternary Pleistocene Gelasian younger Neogene Pliocene …

    Wikipedia

  • 48Neogene — Period 23.03–2.588 million years ago …

    Wikipedia

  • 49Middle Jurassic — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith …

    Wikipedia

  • 50Lutetian — The Lutetian is a stage of the Eocene Epoch. It spans the time between 48.6 ± 0.2 Ma and 40.4 ± 0.2 Ma (million years ago).It is usually united with the Bartonian to form the Middle Eocene subepoch. Less often, the Middle Eocene is not used and… …

    Wikipedia

  • 51Middle Triassic — System Series Stage Age (Ma) Jurassic Lower Hettangian younger Triassic Upper …

    Wikipedia

  • 52Older Dryas — The Older Dryas was a stadial period between the Bølling and Allerød oscillations during the Pleistocene glacial period of 11,700 12,000 uncalibrated years ago.[1] It is named after an indicator genus, the alpine/tundra plant Dryas, which… …

    Wikipedia

  • 53Evolution of the horse — This image shows a representative sequence but should not be construed to represent a straight line evolution of the horse. Reconstruction, left forefoot skeleton (third digit emphasized yellow) and longitudinal section of molars of selected… …

    Wikipedia

  • 54Chadronian — The Chadronian age within the North American Land Mammal Ages chronology is the North American faunal stage typically set from 38,000,000 to 33,900,000 years BP, a period of 4.1 million years[1]. It is usually considered to fall within the Eocene …

    Wikipedia

  • 55Duchesnean — The Duchesnean North American Stage on the geologic timescale is a North American Land Mammal Age (NALMA), with an age from 42 to 38 million years BP, representing 4 million years[1]. It falls within the Eocene epoch. The Duchesnean is preceded… …

    Wikipedia

  • 56Metasequoia foxii — Temporal range: late Tiffanian Paleocene …

    Wikipedia

  • 57Allerød oscillation — The Allerød period was a warm and moist global interstadial that occurred at the end of the last glacial period. The Allerød oscillation raised temperatures (in the northern Atlantic region to almost present day levels), before they declined… …

    Wikipedia