• Thumbnail for Conodont
    Conodonts (Greek kōnos, "cone", + odont, "tooth") are an extinct group of eel-looking agnathan (jawless) vertebrates, classified in the class Conodonta...
    44 KB (4,099 words) - 19:08, 28 May 2024
  • Conodonts are an extinct class of animals whose feeding apparatuses called teeth or elements are common microfossils found in strata dating from the Stage...
    20 KB (2,203 words) - 10:13, 15 April 2024
  • Thumbnail for Conodont feeding apparatus
    The conodont feeding apparatus is a series of phosphatic-mineralized elements, resembling a set of “teeth”, which are found lining the oral surface of...
    12 KB (1,354 words) - 11:38, 27 February 2023
  • Thumbnail for Agnatha
    subphylum Vertebrata, consisting of both living (cyclostomes) and extinct (conodonts, anaspids, and ostracoderms) species. Among recent animals, cyclostomes...
    43 KB (2,778 words) - 13:23, 12 August 2024
  • paleontologist. In 1969, he described the conodont genus Protognathodus. In 1984, with Charles A. Sandberg, he described the conodont genus Alternognathus. In 2002...
    2 KB (208 words) - 21:37, 2 January 2022
  • The Conodont Alteration Index (CAI) is used to estimate the maximum temperature reached by a sedimentary rock using thermal alteration of conodont fossils...
    3 KB (245 words) - 03:05, 14 June 2024
  • Thumbnail for Early Ordovician
    subdivisions in 1974. The boundaries were established by the fauna of conodonts and/or graptolites. In 1995, the Subcommission on Ordovician Stratigraphy...
    41 KB (4,051 words) - 05:29, 11 August 2024
  • mapmaker. She devised the Conodont Alteration Index, a method of determining the heat exposure of buried rock, by analyzing conodont fossils. Her work, which...
    17 KB (1,762 words) - 00:10, 15 June 2024
  • This is a list of conodonts genera, sorted in alphabetical order. †Acanthodus †Acodus †Acuminatella †Alternognathus †Amorphognathus †Ancyrodella †Ancyrognathus...
    4 KB (163 words) - 14:30, 24 August 2022
  • Thumbnail for Carboniferous
    is difficult. The Tournaisian is defined by the first appearance of the conodont Siphonodella sulcata within the evolutionary lineage from Siphonodella...
    110 KB (11,562 words) - 09:06, 12 August 2024
  • Prioniodontida, also known as the "complex conodonts", is a large clade of conodonts that includes two major evolutionary grades; the Prioniodinina and...
    3 KB (238 words) - 01:50, 12 January 2023
  • Mazzaella is an extinct genus of Late Triassic ozarkodinid conodonts in the family Gondolellidae. They are found in mid-Julian sediments of the Tethys...
    4 KB (369 words) - 22:06, 15 February 2023
  • Palmatolepis triangularis conodont zone, but later studies showed that P. triangularis first appeared slightly later than the main conodont turnover in the GSSP...
    9 KB (862 words) - 15:28, 12 March 2024
  • informal organisation founded in 1967 for the promotion of the study of conodont palaeontology. It publishes an annual newsletter. Although there are regular...
    3 KB (269 words) - 07:41, 3 April 2023
  • Scotlandia is an extinct genus of conodonts in the family Prioniodinidae. Structure and evolution of Ordovician conodont apparatuses. Christopher R Barnes...
    1 KB (53 words) - 13:45, 17 June 2021
  • Thumbnail for Paleontology
    isolated rocks: this technique is called biostratigraphy. For instance, the conodont Eoplacognathus pseudoplanus has a short range in the Middle Ordovician...
    102 KB (10,187 words) - 03:20, 15 July 2024
  • Thumbnail for Fish
    fossil record. During the late Cambrian, other jawless forms such as conodonts appear. Jawed vertebrates appear in the Silurian, with giant armoured...
    102 KB (10,216 words) - 01:35, 11 August 2024
  • Thumbnail for Typhloesus
    Gulch Limestone. It was once thought to be the first body fossil of a conodont, based on what turned out to be its gut contents; it is now thought to...
    5 KB (532 words) - 15:26, 29 June 2024
  • Thumbnail for Devonian
    was the driest. Reconstruction of tropical sea surface temperature from conodont apatite implies an average value of 30 °C (86 °F) in the Early Devonian...
    69 KB (7,558 words) - 05:00, 11 August 2024
  • Thumbnail for Permian
    datum of specific species of conodont, an enigmatic group of jawless chordates with hard tooth-like oral elements. Conodonts are used as index fossils for...
    114 KB (11,778 words) - 04:42, 11 August 2024
  • Thumbnail for Ordovician
    the period there were mass-extinction events that seriously affected conodonts and planktonic forms like graptolites. The trilobites Agnostida and Ptychopariida...
    78 KB (7,530 words) - 05:33, 11 August 2024
  • appearance of conodont species Declinognathodus noduliferus. The top of the stage (the base of the Moscovian) is at the first appearance of the conodonts Declinognathodus...
    7 KB (525 words) - 13:43, 8 July 2024
  • Thumbnail for Evolution of fish
    Haikouichthys. During the late Cambrian, eel-like jawless fish called the conodonts, and small mostly armoured fish known as ostracoderms, first appeared...
    47 KB (4,515 words) - 18:06, 7 July 2024
  • Thumbnail for Triassic
    with a mass extinction, which was particularly severe in the oceans; the conodonts disappeared, as did all the marine reptiles except ichthyosaurs and plesiosaurs...
    69 KB (7,520 words) - 11:04, 12 August 2024
  • span formality Formal Lower boundary definition First appearance of the Conodont Hindeodus parvus. Lower boundary GSSP Meishan, Zhejiang, China 31°04′47″N...
    41 KB (4,326 words) - 11:45, 3 July 2024
  • Thumbnail for Silurian
    fishes), although this corresponded to sharp decline of jawless fish such as conodonts and ostracoderms. The Silurian system was first identified by the Scottish...
    59 KB (5,803 words) - 05:10, 11 August 2024
  • Thumbnail for Osteichthyes
    Cyclostomata Hagfish Hyperoartia Lamprey †Conodonts †Protoconodonta? †Paraconodontida †Conodonta †Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida...
    32 KB (2,188 words) - 10:41, 4 August 2024
  • The Šilalė Event was an extinction event affecting conodonts during the Přídolí, the final stage of the Silurian period. The Šilalė Event, first identified...
    4 KB (435 words) - 18:48, 28 May 2024
  • Thumbnail for Lopingian
    Conodonts would reach their all-time low during this period, despite this, they are recovered from most marine Permian localities. Common conodonts from...
    11 KB (909 words) - 04:43, 11 August 2024
  • Thumbnail for Limestone
    Wisconsin. 22 (1): 1–34. Retrieved 5 February 2021. Miller, James F. (1969). "Conodont Fauna of the Notch Peak Limestone (Cambro-Ordovician), House Range, Utah"...
    72 KB (8,485 words) - 16:51, 18 July 2024