Pygurus fossil from Medium Jurassic.
The polished piece has 90 mm diameter x 40 mm tall.
Pygurus is an extinct genus of echinoid, characteristic of the Jurassic period, notable for its petaloid shape and sub-pentagonal outline. This fossil is a key specimen in palaeontology for the study of Mesozoic seabeds, and is highly prized by collectors due to the excellent preservation of its ambulacral system. Its robust structure and radial symmetry make it a specimen of great scientific value and natural decorative beauty.
