When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Helicoprion - Wikipedia

    en.wikipedia.org/wiki/Helicoprion

    Helicoprion is a genus of extinct shark-like [1] eugeneodont fish. Almost all fossil specimens are of spirally arranged clusters of the individuals' teeth, called "tooth whorls", which in life were embedded in the lower jaw. As with most extinct cartilaginous fish, the skeleton is mostly unknown.

  3. Helicoprionidae - Wikipedia

    en.wikipedia.org/wiki/Helicoprionidae

    Helicoprionidae (sometimes referred to as Agassizodontidae) [2] is an extinct family of holocephalans within the order Eugeneodontida.Members of the Helicoprionidae possessed a "whorl" of tooth crowns connected by a single root along the midline of the lower jaw.

  4. Ornithoprion - Wikipedia

    en.wikipedia.org/wiki/Ornithoprion

    Ornithoprion is a genus of extinct cartilaginous fish in the family Caseodontidae. The only species, O. hertwigi, lived during the Moscovian stage of the Pennsylvanian, between 315.2 to 307 million years ago, and is known from black shale deposits in what is now the Midwestern United States.

  5. Wikipedia:WikiProject Palaeontology/Paleoart review/Archive 14

    en.wikipedia.org/wiki/Wikipedia:WikiProject...

    Helicoprion postcrania is not fully known, but other eugeneodonts are known to have five or six shark-like gill slits, not a fleshy chimaera-like operculum. That may have simply been an over-correction based on the confirmation that eugeneodonts were holocephalans.

  6. Eugeneodontidae - Wikipedia

    en.wikipedia.org/wiki/Eugeneodontidae

    The bodies of the eugeneodontids were entirely coated in shark-like dermal denticles, to enough of an extent that it obscures the anatomy of the underlying skeleton. [6] These denticles consisted of two morphologies; single, leaf-shaped scales called lepidomoria, and compound scales with multiple crowns termed polydontode scales.

  7. List of the prehistoric life of Nevada - Wikipedia

    en.wikipedia.org/wiki/List_of_the_prehistoric...

    Life restoration of the Permian Chimaera relative HelicoprionHelicoprion †Heliomera †Helminthochiton †Hintzeia †Holmiella †Homagnostus †Hunnebergia – tentative report †Hyolithellus †Hyolithes †Hypodicranotus †Iapetognathus †Icriodus †Illaenus †Ingria †Innitagnostus †Irvingella †Isograptus

  8. List of the prehistoric life of Wyoming - Wikipedia

    en.wikipedia.org/wiki/List_of_the_prehistoric...

    Modern mounted skeleton of Canis lupus, the grey wolf, to scale with a fossilized skeleton of the Pleistocene wolf Canis dirus, or dire wolf †Canis dirus †Canis latrans †Canis lupus †Cantius †Cantius abditus – type locality for species †Cantius frugivorus †Cantius mckennai †Cantius ralstoni †Cantius torresi

  9. Livyatan - Wikipedia

    en.wikipedia.org/wiki/Livyatan

    Livyatan is an extinct genus of macroraptorial sperm whale containing one known species: L. melvillei.The genus name was inspired by the biblical sea monster Leviathan, and the species name by Herman Melville, the author of the famous novel Moby-Dick about a white bull sperm whale.