Tag: Tooth
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Parhybodus plicatilis, anterior tooth, 8/UMK
A well-preserved specimen of the anterior slender tooth of the hybodont shark Parhybodus plicatilis.
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Acrodus sp, tooth, 7/UMK
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.
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Sauropterygia cf. Nothosaurus, tooth, 5/UMK
Sauropterygia cf. Nothosaurus Middle Triassic, Upper Muschelkalk (Ladinian), Upper Silesia, Poland The largest Sauropterygian tooth in my collection. Unfortunately, the specimen’s preservation leaves something to be desired, especially since the apex of the tooth is missing. In any case, a tooth of this size must have belonged to a large individual. Obtaining it required considerable…
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Acrodus lateralis, tooth, 4/UMK
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.…
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Palaeobates angustissimus, tooth, 13/LMK
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.…
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Parhybodus plicatilis, tooth, 3/UMK
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…
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Pistosaurus longaevus, tooth, 2/UMK
Pistosaurus longaevus Middle Triassic, Upper Muschelkalk (Ladinian), Upper Silesia, Poland Pistosaurus were an intermediate form (though not considered a direct ancestor) between Nothosaurus and Plesiosaurus. They were the first known reptiles to move by underwater flight. While nothosaurids moved primarily by twisting their trunks (like modern crocodiles), the movement of pistosaurids resembled the swimming of…
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Acrodus sp. lateral tooth, 11/LMK
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…
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Colobodus sp. cf. chorzowiensis ganoid scale, 10/LMK
Colobodus sp. cf. chorzowiensis Middle Triassic, Lower Muschelkalk (anisian), Upper Silesia, Poland A beautiful, complete ganoid scale, likely belonging to Colobodus chorzowiensis (yes, Von Meyer described this species based on specimens from Chorzów in Upper Silesia!). It’s the finest specimen I’ve found. Fish equipped with this type of scales were covered in a complete, flexible…
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Acrodus sp. tooth 6/LMK
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.…
