WHICH JURASSIC FOSSILS?

WHICH JURASSIC FOSSILS?

Observation - WHICH JURASSIC FOSSILS? - UK and Ireland. Description: Assume these to be the impressions of fossils from a Jurassic fossil reef; in Portland Stone. However, I don't know any of their names. Does anyone here?

Assume these to be the impressions of fossils from a Jurassic fossil reef; in Portland Stone. However, I don't know any of their names. Does anyone here?