air-filled diverticula · All Facts

air-filled diverticula
Sauropod neck vertebrae were riddled with air-filled diverticula that lightened the skeleton — the same pneumatic design birds use.
SrcProceedings of the Royal Society B

Next evidence →on every continentCryolophosaurus fossils from Antarctica were the first named non-avian dinosaur from the continent — proof dinosaurs lived on every continent.

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eutherian mammals and precocial birdsBone histology shows dinosaurs grew at accelerated rates versus living reptiles — large species reached rates comparable to eutherian mammals and precocial birds.
permineralization and mineral replacementMost dinosaur “bones” on display are fossils formed by permineralization and mineral replacement — original bone pores and tissue swapped or infilled by silica and other minerals.
22 metresBrachiosaurus had front legs longer than its hind legs — giving a giraffe-like upward tilt for browsing tall trees; NHM lists it at about 22 metres long.
chestnut to reddish-brownFossilized melanosomes in Jehol theropods show Sinosauropteryx's dark tail stripes were likely chestnut to reddish-brown — not unknown color forever.

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