The Palaeontological Association (UK)
- The interests of members of the Association encompass all aspects of palaeontology, including macropalaeontology, micropalaeontology, palaeobotany, vertebrate palaeontology, palaeoecology, and biostratigraphy.
- http://www.palass.org/

The Grzybowski Foundation
- An international scientific foundation that associates itself with the Geological Society of Poland, and promotes education and research in the field of micropalaeontology.
- http://www.ucl.ac.uk/geolsci/Grzybowski/gf.htm

Associazione Pisana Scienze Naturali
- Italian paleontological society.
- http://www.comune.pisa.it/apsn/english/

Paleontological Institute of Russian Academy of Sciencies (PIN)
- The University of California Museum of Paleontology has set up a long-term cooperative agreement with the Paleontological Institute, one which has resulted in several mutual visits, student exchanges and cooperative projects, and this website.
- http://www.ucmp.berkeley.edu/pin/pin.html

Blomidon Naturalist's Society
- Field naturalists club centered around the eastern Annapolis Valley of Nova Scotia.
- http://www.go.ednet.ns.ca/~bns/home.htm