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ribs and vertebra are very rare even as replicas
Imagine the crushing force of its bite
researchers estimated Spinosaurus was 52 to 59 feet (16 to 18 m) long and weighed 7
some estimates went up to 485 pounds
approximately 58 cm (23 in) overall length
Archaeopteryx, Haarlem Specimen T-Rex ribs and vertebra are veryThis specimen consists of both A & B sides. The Haarlem Specimen (TM 6428 29, also known as the Teyler Specimen) was discovered in 1855 near Riedenburg, Germany and described as Pterodactylus crassipes in 1857 by von Meyer. It was reclassified in 1970 by John Ostrom and is currently located at the Teylers Museum in Haarlem, the Netherlands. It was the very first specimen, despite the classification error. It is also one of the least complete
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