• Thumbnail for Cretaceous–Paleogene boundary
    The CretaceousPaleogene (K–Pg) boundary, formerly known as the Cretaceous–Tertiary (K–T) boundary, is a geological signature, usually a thin band of rock...
    28 KB (3,035 words) - 22:20, 9 October 2024
  • The climate across the CretaceousPaleogene boundary (K–Pg or formerly the K–T boundary) is very important to geologic time as it marks a catastrophic...
    23 KB (3,147 words) - 07:30, 13 February 2024
  • Thumbnail for Cretaceous–Paleogene extinction event
    The CretaceousPaleogene (K–Pg) extinction event, also known as the K–T extinction, was the mass extinction of three-quarters of the plant and animal species...
    193 KB (21,217 words) - 18:24, 30 October 2024
  • the Anthropocene period Climate change (modern day) Climate change (general concept) Climate across CretaceousPaleogene boundary Thermal history of Earth...
    7 KB (311 words) - 05:03, 15 April 2024
  • Thumbnail for Timeline of Cretaceous–Paleogene extinction event research
    century, a significant amount of research has been conducted on the CretaceousPaleogene extinction event, the mass extinction that ended the dinosaur-dominated...
    120 KB (12,560 words) - 14:02, 2 September 2024
  • Thumbnail for Chicxulub crater
    Chicxulub crater (category CretaceousPaleogene boundary)
    with the CretaceousPaleogene boundary (commonly known as the K–Pg or K–T boundary). It is now widely accepted that the devastation and climate disruption...
    84 KB (8,238 words) - 20:07, 26 October 2024
  • Thumbnail for Paleogene
    by an asteroid impact, and is associated with the CretaceousPaleogene extinction event. The boundary is defined as the rusty colored base of a 50 cm thick...
    65 KB (7,345 words) - 15:06, 2 November 2024
  • Thumbnail for Cretaceous
    the Gulf of Mexico. The end of the Cretaceous is defined by the abrupt CretaceousPaleogene boundary (K–Pg boundary), a geologic signature associated with...
    96 KB (9,913 words) - 00:28, 30 October 2024
  • Thumbnail for Late Cretaceous
    of the world, known as the CretaceousPaleogene boundary (K–T boundary). K is the traditional abbreviation for the Cretaceous Period derived from the German...
    18 KB (1,705 words) - 21:08, 5 November 2024
  • Thumbnail for Hell Creek Formation
    Hell Creek Formation (category Paleogene Montana)
    temperate climate with no prolonged annual cold. The famous iridium-enriched CretaceousPaleogene boundary, which separates the Cretaceous from the Cenozoic...
    45 KB (4,498 words) - 10:32, 3 November 2024
  • ichthyosaurs. However, the Jurassic-Cretaceous boundary did not strongly impact most forms of life. The Cretaceous is the Phanerozoic's longest period...
    61 KB (6,170 words) - 09:50, 10 October 2024
  • Thumbnail for Paleocene
    "The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary" (PDF). Science. 327 (5970): 1214–1218. Bibcode:2010Sci...327...
    156 KB (17,582 words) - 12:37, 2 November 2024
  • Thumbnail for Cenozoic
    Cenozoic (section Paleogene)
    preceded by the Mesozoic and Paleozoic. The Cenozoic started with the CretaceousPaleogene extinction event, when many species, including the non-avian dinosaurs...
    35 KB (3,712 words) - 07:56, 28 October 2024
  • Tanis (fossil site) (category CretaceousPaleogene boundary)
    fronting the late Cretaceous Western Interior Seaway. The iridium-enriched CretaceousPaleogene boundary, which separates the Cretaceous from the Cenozoic...
    31 KB (3,537 words) - 20:41, 17 October 2024
  • Thumbnail for Eocene–Oligocene extinction event
    17 March 2023. Shackleton, N. J. (1 October 1986). "Boundaries and Events in the Paleogene Paleogene stable isotope events". Palaeogeography, Palaeoclimatology...
    39 KB (4,198 words) - 08:08, 3 November 2024
  • 1997). "Nonmarine extinction across the Cenomanian-Turonian boundary, southwestern Utah, with a comparison to the Cretaceous-Tertiary extinction event"...
    104 KB (10,777 words) - 07:42, 3 November 2024
  • Mesozoic (section Cretaceous)
    extinction in the Earth's history. The upper boundary of the Mesozoic is set at the CretaceousPaleogene extinction event (or K–Pg extinction event),...
    41 KB (4,325 words) - 00:43, 5 November 2024
  • Thumbnail for Lefipán Formation
    Lefipán Formation (category CretaceousPaleogene boundary)
    Lefipán Formation is a Maastrichtian to Danian, straddling the Cretaceous-Paleogene boundary, geologic formation of the Cañadón Asfalto Basin in Chubut Province...
    30 KB (2,700 words) - 06:21, 22 September 2024
  • Thumbnail for East Gondwana
    forth. The Sobral Formation of Seymour Island spanning the CretaceousPaleogene boundary at a paleolatitude of 63°S provided a new genus of fossil flower...
    51 KB (5,722 words) - 17:11, 8 July 2024
  • Thumbnail for Triassic–Jurassic extinction event
    Triassic–Jurassic extinction event (category History of climate variability and change)
    extinction and adaptation between the Triassic–Jurassic and CretaceousPaleogene boundaries. He recognized how dinosaurs, lepidosaurs (lizards and their...
    156 KB (16,659 words) - 23:19, 5 November 2024
  • Paleobiota of the Hell Creek Formation (category CretaceousPaleogene boundary)
    T.; Field, D.J. (2011). "Mass extinction of birds at the CretaceousPaleogene (K–Pg) boundary". Proceedings of the National Academy of Sciences. 108 (37):...
    156 KB (7,537 words) - 04:19, 10 October 2024
  • Thumbnail for Yucatán Peninsula
    dinosaurs at the transition from the Cretaceous to the Paleogene Period, the CretaceousPaleogene boundary (K–Pg boundary), 66 million years ago was caused...
    25 KB (2,552 words) - 08:19, 23 October 2024
  • Thumbnail for Jurassic
    the Jurassic, however, has no clear, definitive boundary with the Cretaceous and is the only boundary between geological periods to remain formally undefined...
    234 KB (25,266 words) - 10:58, 5 November 2024
  • Thumbnail for Penguin
    [excessive citations] The basal penguins lived around the time of the CretaceousPaleogene extinction event in the general area of southern New Zealand and...
    82 KB (8,050 words) - 01:55, 28 October 2024
  • Thumbnail for Bisti/De-Na-Zin Wilderness
    and most richly fossiliferous sequence of beds spanning the Cretaceous-Paleogene boundary in any single sedimentary basin in the world. These include...
    15 KB (1,652 words) - 03:24, 2 August 2024
  • Thumbnail for Gondwana
    separate landmasses: elements of this break-up nearly coincide with the CretaceousPaleogene extinction event. The India–Madagascar–Seychelles separations appear...
    75 KB (7,889 words) - 15:58, 5 November 2024
  • Thumbnail for Eocene
    Eocene (redirect from Climate of the Eocene)
    manatees and dugongs. It is thought that millions of years after the Cretaceous-Paleogene extinction event, brain sizes of mammals now started to increase...
    106 KB (11,762 words) - 04:48, 30 September 2024
  • Thumbnail for Dinosaur
    epoch, and are the only dinosaur lineage known to have survived the CretaceousPaleogene extinction event approximately 66 mya. Dinosaurs can therefore be...
    283 KB (28,268 words) - 18:11, 30 October 2024
  • Thumbnail for Pre-Noachian
    changes in the dominant fauna or environmental conditions. (See CretaceousPaleogene boundary as example.) At any location, rock sections in a given system...
    16 KB (1,843 words) - 15:00, 7 August 2024
  • Thumbnail for Geological history of Earth
    down in the very late Cretaceous and early Paleocene. The Cenozoic Era covers the 66 million years since the CretaceousPaleogene extinction event up to...
    55 KB (6,434 words) - 18:25, 31 October 2024