Olivooides

Olivooides is an oogenus/genus of Cambrian-aged embryo fossil found in China. It was related to the Siberian "Markuelia".
Most "Olivooides" fossils are in a late embryonic stage, having died before hatching.
Some show a hatched animal, conical with a star-shape surface, and stellae. They are pertural in the peak. There is an addition of striated tissue that indicates growth.