Lethaia is a leading international journal of Palaeontology and Stratigraphy designated as a formal publication outlet for the International Commission on Stratigraphy and the International Palaeontological Association.  It can be reached, diamond open-access, at https://www.idunn.no/journal/let

Lethaia, established in 1968, is owned by The Lethaia Foundation (Copenhagen) and published by the Scandinavian University Press.  Since the early 1990’s Lethaia has been designated as an ‘official publication’ of the International Palaeontological Association.  For many years, Lethaia supported IPA financially.  Now, IPA aspires to return the favour by supporting the journal, which freely serves a wide range of authors and readers around the world at no personal cost.