Definition of biofacies in English:

biofacies

Pronunciation /ˌbʌɪə(ʊ)ˈfeɪʃɪiːz/ /ˌbʌɪə(ʊ)ˈfeɪsiːz/ /ˈbʌɪə(ʊ)ˌfeɪʃɪiːz/

noun

Geology
  • A facies defined in terms of its fossil or other organic content.

Origin

1940s; earliest use found in Martin Fritz Glaessner (b. 1906).