#preprismatoolithus

[a-dinosaur-a-day]

Preprismatoolithus

Preprismatoolithus is an egg genus from the Late Jurassic, shaped roughly spherical with a diameter of about 10 cm (lower left eggs in the picture above). Prior to the finding of embryonic material it was thought to be laid by ornithopods; however, since material in Portugal associated with the eggs have been attributed to theropods. The eggs themselves are known from what may have been a nesting ground. 

Source:

https://en.wikipedia.org/wiki/Preprismatoolithus

http://america.pink/preprismatoolithus_3578157.html

Shout out goes to @multiplemyelomaman!