Name: Diplomystus.
Meaning: Double recess,
twice. hidden.
Grouping: Fish,
Actinopterygian, Teleost,
Clupeiform, Clupeid.
Infonnal ID: Extinct herring
Fossil size: Head-tail length
43cm/17in.
Reconstructed size: Head-tail
length up to 65cm/26in.
Habitat: Varied, seas
and lakes.
Time span: Mid to Late
Cretaceous to Early Tertiary,
80-50 million years ago.
Main fossil sites: Europe,
Middle East. Africa, North
and South America.
Occurrence: •••