As nouns the difference between ichnocoenoses and ichnocoenosis
is that ichnocoenoses is plural of ichnocoenose while ichnocoenosis is a trace fossil assemblage, the progenitors of which all belonged to the same faunal community.
ichnocoenosis
English
Noun
(ichnocoenoses)
A trace fossil assemblage, the progenitors of which all belonged to the same faunal community.
See also
*ichnofacies
*trace fossil