J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic
J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic

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J510 - Top Rare Rooted cf Narindasaurus Turiasaurian Sauropod Dinosaur Tooth - Middle Jurassic

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Species
cf †Narindasaurus thevenini (Royo-Torres et al., 2020) - Turiasaurian Sauropod Dinosaur Tooth
Age
Middle Jurassic, Bajocian-Bathonian stage, (~168-165 Million Years)
Location
Ambondromamy village near the northwestern coast of Madagascar
Formation
Isao III Formation, Madagascar’s Mahajanga Basin
Size
21 mm   •    in
Weight
2 g   •    oz
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Description

Narindasaurus (specifically Narindasaurus thevenini) is a genus of turiasaurian sauropod dinosaur from the Middle Jurassic of Madagascar. Its teeth are characteristic of the Turiasauria clade. 


Key Features of Narindasaurus Teeth:


Heart-Shaped: The crowns have a distinct heart-shaped morphology, which is a key diagnostic feature of turiasaurs.


Asymmetrical: The teeth are asymmetric and often show a lingual curvature (curving toward the tongue).


D-shaped Cross-section: The teeth have an asymmetrical "D" shape, with a convex labial (outer) face and a flatter or slightly concave lingual (inner) face.


Surface Texture: The enamel surface is often described as rough.


Size and Shape: They are generally spatulate (spoon-shaped) and robust, adapted for feeding on plants. With quite well developed serrations.

The shape is relatively similar to that of Archaeodontosaurus, but it has the characteristic asymmetry of Turiasaurid teeth.

Narindasaurus is one of the oldest known members of the Turiasauria group, with fossils discovered in the Middle Jurassic of Isalo III Formation of Madagascar.

Link to: Very interesting paper about Madagascar middle Jurassic Sauropod teeth

 

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