A fossil species, Æoliscus heinrichi, is found in the Oligocene of various parts of Europe, and Centriscus longirostris occurs in the Eocene of Monte Bolca.
Fossil species referred to the Anguillidæ are known from the early Tertiary.
There is one species, formerly Mya inequivalvis, from the British Ocean; fossil species several.
Fossil species abound--Petworth marble is full of them.
In the Carina of Fossil Species of Scalpellum, I have found it necessary to distinguish different parts, viz.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "fossil species" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.