Lapparentosaurus madagascariensis

The first dinosaur to be done in my new style. Here's Lapparentosaurus, a brachiosaur from mid-Jurassic Madagascar. This is a complete overhaul compared to my earlier Lapparentosaurus restoration.
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Lapparentosaurus madagascariensis - Shows that at least some dinosaurs really took their time growing up...
(Bonaparte, 1986)
= Bothriospondylus madagascariensis (Lydekker, 1895)

Temporal range: Middle Jurassic, Bathonian, around ~169-165 Ma
Location: Madagascar, southern Africa

Length: ~16-17 metres, possibly up to ~24 metres?
Probable mass: ~15-18 tonnes, possibly up to ~30+ tonnes?

Etymology: Lapparent's reptile from Madagascar


Lapparentosaurus madagascariensis is a species of brachiosaurid sauropodomorph from Middle Jurassic Madagascar. It is known from material represents 3 main individuals and as many as 7 less complete ones, from multiple growth stages. The holotype, MAA 91-92, consists of two neural arches.

In 1983, it was determined by histological age analysis that a mature individual was around ~45 years old, and still had not stopped growing. It was also shown in 1995 to have grown relatively fast, given the presence of a large amount of fibrolamellar and harversian bone, which firmly established Bakker's theory that sauropods were endothermic.
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Based on 's Lapparentosaurus madagascariensis skeletal reconstruction. This was the first rigorous attempt to reconstruct the animal, and as of 2017, it's the only rigorous Lapparentosaurus skeletal reconstruction to date.