• Thumbnail for Serpukhovian
    The Serpukhovian is in the ICS geologic timescale the uppermost stage or youngest age of the Mississippian, the lower subsystem of the Carboniferous. The...
    20 KB (2,009 words) - 05:19, 27 December 2023
  • geologic timescale, the Mississippian is subdivided into three stages: Serpukhovian (330.9 to 323.2 mya) Visean (346.7 to 330.9 mya) Tournaisian (358.9 to...
    7 KB (502 words) - 21:36, 19 December 2023
  • Thumbnail for Carboniferous
    Stratigraphy (ICS) stage, but the Viséan is longer, extending into the lower Serpukhovian. North American geologists recognised a similar stratigraphy but divided...
    110 KB (11,562 words) - 12:52, 11 April 2024
  • Thumbnail for Viséan
    330.9 Ma. It follows the Tournaisian age/stage and is followed by the Serpukhovian age/stage. The Viséan Stage was introduced by Belgian geologist André...
    10 KB (858 words) - 13:57, 24 April 2024
  • Pennsylvanian and is divided in three ages: Namurian (corresponding to Serpukhovian and early Bashkirian) Westphalian (corresponding to late Bashkirian,...
    13 KB (1,145 words) - 16:23, 11 April 2024
  • approximately 10 million years older than Echinochimaera (from the late Serpukhovian of Montana), and far older than the Mesozoic radiation which would lead...
    3 KB (216 words) - 17:31, 12 November 2023
  • Thumbnail for Chimaera
    Carboniferous (Serpukhovian) †Genus Protochimaera Lebedev & Popov in Lebedev et al., 2021 Moscow Region, Russia, Lower Carboniferous (Viséan–Serpukhovian) †Genus...
    24 KB (2,477 words) - 17:23, 13 March 2024
  • Thumbnail for Bluefieldius
    United States. It is known from a single fossil collected from the late Serpukhovian or early Viséan Bluefield Formation. The type and only species (monotypy)...
    2 KB (128 words) - 21:36, 21 April 2024
  • Thumbnail for Geologic time scale
    Kasimovian 307 ± 0.1 Moscovian 315.2 ± 0.2 Bashkirian 323.2 * Mississippian Serpukhovian Large lycopodian primitive trees flourish and amphibious eurypterids...
    172 KB (9,469 words) - 02:14, 2 May 2024
  • Thumbnail for Arthropleura
    However, large-sized specimens of Arthropleura are described from the Serpukhovian stage, during which the oxygen pressure was only a bit higher than modern...
    15 KB (1,396 words) - 02:06, 29 March 2024