Procephalaspis

Procephalaspis is an extinct genus of jawless fish.

Procephalaspis Temporal range: Silurian
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Cephalaspidomorphi
Order:	†Thyestiida
Genus:	†Procephalaspis

References

• Telling the Evolutionary Time: Molecular Clocks and the Fossil Record (Systematics Association Special Volume) by Philip C J Donoghue and M. Paul Smith (page 227)

• Paleontology portal