The seabed from 240 million years ago. Visible is a nothosaurid tooth and a fragment of a gastralium.

SilesianTriassic

Tag: Hybodontiformes

  • Parhybodus plicatilis, anterior tooth, 8/UMK

    Parhybodus plicatilis, anterior tooth, 8/UMK

    —

    in ,

    A well-preserved specimen of the anterior slender tooth of the hybodont shark Parhybodus plicatilis.

  • Acrodus sp, tooth, 7/UMK

    Acrodus sp, tooth, 7/UMK

    —

    in ,

    A beautifully preserved tooth crown from Acrodus sp.. The root is missing, suggesting it was much less durable than the crown itself. In fact, these occasionally broken (though still recognizable) crowns are often the only identifiable elements in the “fishy mess” of vertebrate remains I encounter.

  • Acrodus lateralis, tooth, 4/UMK

    Acrodus lateralis, tooth, 4/UMK

    —

    in ,

    Acrodus lateralis Middle Triassic, Upper Muschelkalk (Ladinian), Upper Silesia, Poland A beautifully preserved tooth crown from the hybodont shark Acrodus lateralis. The teeth of this species are smaller than those of Acrodus gaillardoti, with more refined ornamentation. The delicate, yet distinct, branching ridges converge to a keel that runs the entire length of the tooth.…

  • Palaeobates angustissimus, tooth, 13/LMK

    Palaeobates angustissimus, tooth, 13/LMK

    —

    in ,

    Palaeobates angustissimus Middle Triassic, Lower Gogolin Beds, Upper Silesia, Poland A tooth from another common shark from the Middle Triassic – Palaeobates angustissimus. These teeth measure usually no more than a few millimeters. This specimen is one of the largest in my collection. Palaeobates is another durophagous shark with dentition adapted for crushing hard prey.…

  • Parhybodus plicatilis, tooth, 3/UMK

    Parhybodus plicatilis, tooth, 3/UMK

    —

    in ,

    Parhybodus plicatilis Middle Triassic, Upper Muschelkalk (Ladinian), Upper Silesia, Poland A beautifully preserved specimen of a antero-lateral tooth of Parhybodus plicatilis. This shark, unlike the genus Acrodus, was an active hunter, capturing prey with its sharp teeth. Its teeth are quite abundant in the Upper Silesian sediments of the Upper Muschelkalk, though not as common…

  • Acrodus sp. lateral tooth, 11/LMK

    Acrodus sp. lateral tooth, 11/LMK

    —

    in ,

    Acrodus sp. Middle Triassic, Lower Gogolin Beds, Upper Silesia, Poland A beautiful specimen of a shark tooth from the genus Acrodus, with its crown and root preserved. The dentition of these durophagous sharks was heterodont—meaning the teeth varied in shape depending on their position in the jaw. This specimen is an example of a lateral…

  • Acrodus sp. tooth 6/LMK

    Acrodus sp. tooth 6/LMK

    —

    in ,

    Acrodus sp. Middle Triassic, Lower Muschelkalk (Anisian), Lower Gogolin Beds, Upper Silesia, Poland The photo shows a complete tooth (crown with root) from a Triassic shark of the genus Acrodus. At first glance, the specimen shows signs of damage. But in my opinion, that’s what’s most interesting about it! These aren’t traces of modern erosion.…

  • Sauropterygia assoc. Acrodus teeth 2/LMK

    Sauropterygia assoc. Acrodus teeth 2/LMK

    —

    in , ,

    Sauropterygia indet. assoc. Acrodus sp. Middle Triassic, Lower Muschelkalk (Anisian), Gogolin Beds, Upper Silesia, Poland This is the type of fossil I like best. The plate you see is a snapshot, a frozen image of a section of the seabed from 240 million years ago. Between fragments of crushed, older sediment, pebbles, and crushed fragments…

  • Acrodus gaillardoti tooth 1/UMK

    Acrodus gaillardoti tooth 1/UMK

    —

    in ,

    Acrodus gaillardoti? Middle Triassic, Upper Muschelkalk (ladinian), Upper Silesia, Poland Acrodus teeth are quite common in the Upper Muschelkalk sediments of Silesia, much more common than remains of other cartilaginous fishes (at least that’s my impression). Acrodus was a durophagous shark – it fed on armored prey. For this reason, its teeth do not resemble…