Home / Thesaurus / index fossil
Thesaurus: index fossil
a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found
Related headwords
datedefinitionfossildefinitionfounddefinitiongeologicdefinitionknowndefinitionlayerdefinitionliveddefinitionparticulardefinitionrockdefinitionindexfamilyindex casefamilyindex fingerfamilyindex fundfamilyindex numberfamilyindex registerfamilyindexationfamilyindexedfamilyindexerfamilyindexersfamilyindexesfamilyindexicalfamilyindexicallyfamilyindexicalsfamilyindexingfamilyindexlessfamilyindexterityfamilyindeterminedneighbor