Ichnotaxa are names used to identify and distinguish morphologically distinctive ichnofossils, more commonly known as trace fossils.
They are assigned genus and species ranks by ichnologists, much like organisms in Linnaean taxonomy.
These are known as ichnogenera and ichnospecies, respectively.
Ichnotaxon - Wikipedia
Noun. morphotype (plural morphotypes) (biology) Any of a group of different types of individuals of the same species in a population; a morph. [
morphotype - Wiktionary