V najstarejših delih Lipiške formacije, torej v krovnini Sežanske formacije, se pojavlja foraminifera vrste Pseudorhapydionina mediterranea (De Castro), ki se pojavlja v zgornjem delu santonija in v campaniju na otoku Braču (Gušicy & Jelaska, 1990).
In the oldest parts of the Lipica Formation, which is directly overlying the Sežana Formation, appears Pseudohapydionina mediterranea (De Castro) that was found in the upper part of Santonian and in Campanian of the island of Brač (Gušicy & Jelaska, 1990).