• Clarkina is an extinct genus of conodonts. It is considered to be an offshore, outer shelf or basinal, deep-water taxon. The genus name is a tribute to...
    3 KB (254 words) - 17:26, 21 January 2023
  • Thumbnail for Permian
    was ratified in 2004. The boundary is defined by the first appearance of Clarkina postbitteri postbitteri The Changhsingian was originally derived from the...
    115 KB (11,882 words) - 19:46, 27 September 2024
  • Thumbnail for Changhsingian
    Changhsingian Stage is at the first appearance of the conodont species Clarkina wangi. The global reference profile is profile D at Meishan, in the type...
    16 KB (1,364 words) - 16:18, 25 June 2024
  • Thumbnail for Wuchiapingian
    defined as the place in the stratigraphic record where the conodont species Clarkina postbitteri postbitteri first appears. A global reference profile for this...
    10 KB (756 words) - 15:35, 8 June 2024
  • Thumbnail for Lopingian
    Permian localities. Common conodonts from the Lopingian include the genera Clarkina and Hindeodus. The Lopingian would see the decline of the Paleozoic ammonoid...
    11 KB (920 words) - 19:44, 27 September 2024
  • Thumbnail for Permian–Triassic extinction event
    bivalves Claraia, Unionites, Eumorphotis, and Promyalina, the conodonts Clarkina and Hindeodus, the inarticulate brachiopod Lingularia, and the foraminifera...
    375 KB (40,236 words) - 22:22, 13 October 2024
  • defined as the place in the stratigraphic record where the conodont species Clarkina postbitteri postbitteri first appears. The Capitanian Stage was part of...
    10 KB (931 words) - 15:38, 8 June 2024
  • Thumbnail for Conodont
    Satoshi; Suzuki, Noritoshi (2019-06-15). "Natural assemblages of the conodont Clarkina in lowermost Triassic deep-sea black claystone from northeastern Japan...
    44 KB (4,113 words) - 19:32, 31 August 2024
  • Thumbnail for Guadalupian
    Lower GSSP ratified 2001 Upper boundary definition FAD of the Conodont Clarkina postbitteri postbitteri Upper boundary GSSP Penglaitan Section, Laibin...
    16 KB (1,576 words) - 04:44, 11 August 2024
  • Thumbnail for Mylocheilus caurinus
    caurinus (J. Richardson, 1836) Synonyms Cyprinus caurinus Richardson, 1836 Clarkina caurina (Richardson, 1836) Mylocheilus lateralis Agassiz & Pickering, 1855...
    6 KB (714 words) - 17:02, 25 March 2024
  • stratigraphic record where Clarkina postbitteri postbitteri first appears. The Capitanian contains three conodont biozones: the zone of Clarkina postbitteri hongshuiensis...
    20 KB (2,203 words) - 10:13, 15 April 2024
  • of the conodont Clarkina changxingensis (Wang & Wang). Heinz Kozur, January 1992 Palaeoecology of the conodonts Hindeodus and Clarkina during the Permian–Triassic...
    2 KB (117 words) - 21:57, 17 July 2024
  • appearance is only 42 cm (17 in) above the base of the Changhsingian (FAD of Clarkina wangi) "Genus Tapashanites". GONIAT.org. "Tapashantites". www.Mindat.org...
    2 KB (91 words) - 07:55, 11 February 2024
  • science of stratigraphy by research in paleontology. The conodont genus name Clarkina and species name Streptognathodus clarki are tributes to David Leigh Clark...
    2 KB (197 words) - 18:14, 13 March 2023
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    1 KB (60 words) - 14:10, 3 July 2024
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    3 KB (199 words) - 15:15, 28 September 2024
  • Budurovignathus, in 1989, the genus Mesogondolella, in 1990, the genera Clarkina and Chiosella and in 2003, the genus Carnepigondolella. In 2011, with RE...
    3 KB (383 words) - 04:07, 30 May 2024
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    2 KB (196 words) - 23:45, 23 May 2024
  • Thumbnail for List of prehistoric jawless fish genera
    †Canadapteraspis †Canonia †Cephalaspis †Cephalopterus †Chattertonodus †Clarkina †Clydonaspis †Coelolepides †Coelolepis †Cometicercus †Conopiscius †Corvaspis...
    13 KB (1,368 words) - 17:28, 11 March 2022
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    9 KB (828 words) - 04:15, 22 July 2024
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    3 KB (289 words) - 03:33, 26 July 2022
  • †Chirodella †Chirognathus †Colaptoconus †Complexodus †Cordylodus †Cornuodus †Clarkina †Clydagnathus †Cryptotaxis †Ctenognathodus †Culumbodina †Curtognathus †Cypridodella...
    4 KB (163 words) - 14:30, 24 August 2022
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    3 KB (172 words) - 21:38, 14 October 2024
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    3 KB (317 words) - 21:53, 14 October 2024
  • Thumbnail for Polygnathus
    Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    6 KB (410 words) - 17:17, 1 April 2024
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    1 KB (66 words) - 21:52, 14 October 2024
  • Name Novelty Status Authors Age Type unit Location Notes Images Chiosella Gen nov Valid Kozur Clarkina Gen nov Valid Kozur...
    28 KB (1,300 words) - 02:17, 27 June 2024
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    2 KB (171 words) - 05:45, 17 December 2021
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    2 KB (174 words) - 09:46, 1 March 2021
  • Gondolellidae Acuminatella Ancyrogondolella Borinella Carnepigondolella Clarkina Conudina Epigondolella Gondolella Hayashiella Icriospathodus Jinogondolella...
    3 KB (172 words) - 06:16, 13 August 2023