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上楼黑凯的头骨就是（1987那条）头长58.8cm，推测全长4.94米。推特上也提到了 We're glad you asked! In 1987 John Thorbjarnarson published a note on this black caiman (Melanosuchus niger) skull, and the total length of the animal was estimated to be 4.84 m (~16 feet)! 可能是记错了，他把4.94写成4.84了
与普鲁斯鳄的对比，注意:普鲁斯鳄头骨是大卫星!
Fig. 8. Skull of Purusaurus brasiliensis, the largest alligatorid recorded in the Solimões Formation and one of the largest predators, reaching up to 15 m in length. For comparison, see the head of an Amazon living black caiman Melanosuchus niger that reached 3.5 m in length. This cast of the Purussaurus skull is on exhibit at the Museum of Paleontology of the Federal University of Acre, Rio Branco, Acre, Brazil.
Fig. 8. Skull of Purusaurus brasiliensis, the largest alligatorid recorded in the Solimões Formation and one of the largest predators, reaching up to 15 m in length. For comparison, see the head of an Amazon living black caiman Melanosuchus niger that reached 3.5 m in length. This cast of the Purussaurus skull is on exhibit at the Museum of Paleontology of the Federal University of Acre, Rio Branco, Acre, Brazil.
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