Complex sentence: The genus "Vermetus" is very ancient: it occurs in the fossil record from the Jurassic to the Quaternary (age range: from 164.7 to 0.0 million years ago).
Split into simpler sentences: The genus "Vermetus" is very ancient. It is known in the fossil records from the Jurassic to the Quaternary (age range: from 164.7 to 0.0 million years ago).