This is a diorama, of spinosaurus. Spinosaurus, genus of theropod dinosaurs belonging to the family Spinosauridae, known from incomplete North African fossils that date to Cenomanian times (roughly 100 to 94 million years ago). Spinosaurus, or “spined reptile,” was named for its “sail back” feature, created by tall vertebral spines.

The model its fully splited and keyed.best regards,

Arthur Vergneinstagram.com/v3dbahia