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  2. Ophiacodon - Wikipedia

    en.wikipedia.org/wiki/Ophiacodon

    Ophiacodon (meaning "snake tooth") is an extinct genus of synapsid belonging to the family Ophiacodontidae that lived from the Late Carboniferous to the Early Permian in North America and Europe. The genus was named along with its type species O. mirus by paleontologist Othniel Charles Marsh in 1878 and currently includes five other species. [ 1 ]

  3. Dental lamina - Wikipedia

    en.wikipedia.org/wiki/Dental_lamina

    The dental lamina is a band of epithelial tissue seen in histologic sections of a developing tooth. [1] [2] The dental lamina is first evidence of tooth development and begins (in humans) at the sixth week in utero or three weeks after the rupture of the buccopharyngeal membrane. It is formed when cells of the oral ectoderm proliferate faster ...

  4. Polyphyodont - Wikipedia

    en.wikipedia.org/wiki/Polyphyodont

    New, permanent teeth grow in the jaws, usually under or just behind the old tooth, from stem cells in the dental lamina. [5] Young animals typically have a full set of teeth when they hatch; there is no tooth change in the egg. Within days, tooth replacement begins, usually in the back of the jaw continuing forward like a wave.

  5. Gempylidae - Wikipedia

    en.wikipedia.org/wiki/Gempylidae

    The Gempylidae are a family of scombriform ray-finned fishes commonly known as snake mackerels or escolars. The family includes about 25 species. The family includes about 25 species. They are elongated fishes with a similar appearance to barracudas , having a long dorsal fin , usually with one or finlets trailing it.

  6. Alethinophidia - Wikipedia

    en.wikipedia.org/wiki/Alethinophidia

    Common names: advanced snakes. The Alethinophidia are an infraorder of snakes that includes all snakes other than blind snakes and thread snakes.Snakes have long been grouped into families within Alethinophidia based on their morphology, especially that of their teeth.

  7. Trimorphodon - Wikipedia

    en.wikipedia.org/wiki/Trimorphodon

    [2] The word Trimorphodon is a combination of three Greek words, 'tri' - three, 'morph' - shape, and 'odon' - teeth, which refers to the three distinct kinds of teeth that lyre snakes have: recurved anterior teeth; shorter middle teeth, and large grooved fangs at the rear of the jaw.

  8. Rhabdophis subminiatus - Wikipedia

    en.wikipedia.org/wiki/Rhabdophis_subminiatus

    Rear-fanged snakes need to bite and hold on, or repeatedly bite, to have any effect on humans. A chewing action facilitates envenomation, as the venom ducts open to fangs that are externally grooved (not hollow) and are posterior in the oral cavity. R. subminiatus has enlarged and ungrooved teeth. The species has two enlarged teeth in the back ...

  9. Leptotyphlopidae - Wikipedia

    en.wikipedia.org/wiki/Leptotyphlopidae

    The Leptotyphlopidae (commonly called slender blind snakes or thread snakes [2]) are a family of snakes found in North America, South America, Africa and Asia. All are fossorial and adapted to burrowing, feeding on ants and termites.