Arm Lizard

Yeey, brachiosaurids!
Here's Brachiosaurus alithorax. The specie from the Morrison Formation in Colorado we all know. Here's a female in the front and a colorful male eating in the back. Also some small pterosaurs take the chance to get a quick snack of sauropod parasites. 

Brachiosaurus altithorax is a very famous dinosaur but remains are scarce however. The type specimen was 24-25 meters long with an estimated weight of 37 tons, but he was not yet fully grown so these animals became even bigger! Brachiosaurus remains were first found in 1900 and immediately held the record of largest land animal ever and did this for a very long time. Only Cretaceous Titanosaurids like Argentinosaurus, Futalognkosaurus, Alamosaurus and the newly described Dreadnoughtus were bigger.

Refs used: 
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