Megaloolithus Dinosaur Fossil Egg Shell Sauropod Cretaceous Collection (3)

Description

Origin : France (Meze, Herault)

Geological era : Late Cretaceous (Campanian)

Age : 75 million of years

Size : mm 11 x 7 x 2

Fossil Egg Shell Dinosaur Sauropod Titanosaur mm 11 x 7 x 2 Megaloolithus mamillare Extinct Reptiles Mesozoic Cretaceous Collectibles Paleontology Museum, in plexiglas box with felt pad (2.8 x 2.8 x 2.9 h cm).

Pleasant collectible fossil find in excellent condition, with evident details typical of Dinosaur Eggs, such as the type of external ornamentation, the thickness, the arrangement of the pores and respiratory channels, the crystalline microstructure and the growth grooves, etc. No restoration at all. Only a piece, as in photos.

Fossil Fragment of Eggshell of Dinosaur Megaloolithus mamillare, an oospecie probably due, thanks to the criteria of paratassonomia, to Titanosauridae.
The finding comes from the Meze Formation, in southern France, where in '96 A. Cabot has discovered a unique paleontological site of 40 square kilometers in which were found the remains of fossil bones and dinosaur eggs. This site is one of the most important in the world, thanks to the continuous discovery of fossils. The first discoveries of dinosaur eggs occurred its in southern France in 1859, and from there gradually all over the world, mostly dating all the Upper Cretaceous. In the site of Meze the number of dinosaur eggs found significantly exceeds that of bone, although unfortunately only 2% of the eggs are found intact.
The basic structure of the shell is composed of crystals of calcium carbonate (calcite or aragonite) and bears the peculiar characteristics typical of dinosaur eggs, such as the type of exterior ornamentation, the thickness, the arrangement of respirators pores and channels, the crystalline microstructure of the grooves and of growth, etc..
For each shell the paratassonomia assigns a generic term, followed by the suffix "oolithus" (Megaloolithus means shell with large tubercles, peculiar of this kind). In the field of Meze were found seven different oospecies: among them, the kind Megaloolithus, whitch belong M. siruguei, M. Petralta, M. aureliensis and M. mamillary. Among other genres it is worth mentioning the Prismatoolithus caboti, named in honor of Cabot: it includes the smallest carnivore dinosaur eggs found so far in the world and analyzing their morphology and structure, was found to be similar to the eggs of Troodon in Montana (USA).