Chirognathidae is an extinct family of conodonts.Stratigraphical distribution of the Ordovician conodont Erraticodon Dzik in Argentina. S. Heredia, J. Carlorosi, A. Mestre and T. Soria, Journal of South American Earth Sciences, Volume 45, August 2013, Pages 224–234,
Genera are Chirognathus, Erraticodon and Spinodus.
References
External links
Chirognathidae at biolib.cz (retrieved 30 April 2016)