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Re: Medullary Bone Distribution in Archosaurs

Medullary bone, a
highly mineralized, bony reproductive tissue present
in the endosteal cavities of all extant egg-laying
birds thus far examined, has recently been reported in
Tyrannosaurus rex. ..... alligators .... shows no
differences on the endosteal surfaces of the long
bones, and no evidence of medullary bone

Do we know anything about the presence or absence of medullary bone in Sauropods, Pterodactyles, or the bird-hip dinosaurs (ducksbills, ceratopsians, etc.)?