Literally meaning: “hidden origin”
Origin: Anc Greek
+γεννώ/geno(= “produce”, “give birth to”, “create”) >γένεσις/genesis(=origin)
The term “cryptogenic species” coined by Jim Carlton in 1996 and it refers to those species that cannot be demonstrably classified as native or introduced in a particular region.
wrote that “species that are neither clearly native nor exotic” Carlton
James T. Carlton “Biological Invasions and Cryptogenic Species” Ecology, 77(6) 1653-1655
1. (ecology) cryptogenic species is one which origin is unknown
2. (medicine) cryptogenic is a disease of unknown cause such as cryptogenic stroke in which classic risk factors are usually absent.