T-rex tooth dinosaur Size: 7.2 cm (2,8 inches), calcium sulfate in the base, free shipping to worldwide.
Tooth size: 2,8 inches.
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Packing: сardboard box with polyfoam, 100 % quality.
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The teeth of Tyrannosaurus rex displayed marked heterodonty (differences in shape).
The premaxillary teeth, four per side at the front of the upper jaw, were closely packed, D-shaped in cross-section, had reinforcing ridges on the rear surface, were incisiform (their tips were chisel-like blades) and curved backwards.
The D-shaped cross-section, reinforcing ridges and backwards curve reduced the risk that the teeth would snap when Tyrannosaurus bit and pulled.
Paleontology is the study of ancient life.
Paleontologists discovered the fossilized remains of a 98 million-year-old titanosaur in Neuquén Province in Argentina’s northwest Patagonia.
People (geologists) have found fossil remains of living organisms since ancient times and studied them. But this is a complex process of searching, digging and structuring data.