British Chalk Chondrichthyes, by Robert Randell:
Fossils of the Gault Clay and Folkestone Beds (Albian) in the county of Kent, south-east England. A very interesting sharks and rays section!
Lower Eocene fossils of the London Clay from the North coastal section of the Isle of Sheppey, Kent, UK. A good sharks and rays section!
Chondrichthyan teeth from the Paleogene of Kiev, Ukraine, by Stanislav Dobrovolskiy:
Geologica Belgica:
Netherlands Journal of Geosciences / Geologie en Mijnbouw:
Royal Belgian Institute of Natural Sciences:
Dutch National Museum of Natural History:
Belgische Vereniging voor Paleontologie (BVP):
The Tertiary Research Group (UK):

Werkgroep voor Tertiaire en Kwartaire Geologie (WTKG):

Palaeo-Publishing & -Library:
The International Commission on Stratigraphy (ICS):
The International Commission on Zoological Nomenclature (ICZN):