Massospondylus
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Massospondylus is a genus of sauropodomorph dinosaur from the Early Jurassic of southern Africa. It was described by Richard Owen in 1854 from remains discovered in South Africa, and is thus one of th
Neotype skeleton of Massospondylus carinatus
Life restoration of a bipedal adult Massospondylus carinatus
Mounted Massospondylus skeleton cast (NHMUK PV R8171) at the Natural History Museum, London, showing an outdated quadrupedal pose
Mounted skeleton in modern, bipedal pose, Royal Ontario Museum
Dinosaur egg
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Dinosaur eggs are the organic vessels in which a dinosaur embryo develops. When the first scientifically documented remains of non-avian dinosaurs were being described in England during the 1820s, it
Massospondylus
…it bore a sharp thumb claw that was probably used in feeding, possibly to uproot vegetation or to pull down branches while rearing up. Clutches of eggs have been found, some of which contained embryos; these are among the oldest eggs and embryos of an amniote in the fossil record. The eggshell was…
Fossilized sauropod eggs displayed at Indroda Dinosaur and Fossil Park
A Citipati osmolskae egg with preserved embryo, at the AMNH.
Fossilized dinosaur egg from the Gobi Desert, National Museum in Prague
Diagram of a two-layered eggshell.