What information can be garnered about Hypselosaurus is that it was a medium-sized Titanosaur that lived in what is now Western Europe at the end of the Cretaceous period. Hypselosaurus are eggs that have been attributed to this dinosaur. These eggs are roughly spherical and thirty centimeters across, but one area of puzzlement is that some have much thinner shells than others.

From the late Cretaceous (circa 70 million years ago), a group of three 9-inch sauropod eggs retaining their shell texture, each approximately 9 inches wide, prepped in matrix, on custom wood base with metal supports. · the nest 10 x 20 x 14in. (25.5 x 51 x 35.5cm.) ·