This genus is known in the fossil records from the Miocene to the Quaternary (age range: from 5.332 to 1.806 million years ago). Fossils are found in the marine strata of Italy, the Netherlands, Chile and Peru.
Identifier (URI) | Rank |
---|---|
dbkwik:resource/2fY9vfxI2GNnfwqGliMILA== | 5.88129e-14 |
dbr:Hemisyntrachelus | 5.88129e-14 |