词根词缀：faun-, fauni-, fauna-, -fauna

【来源及含义】Latin: animal; a collective name for the animals of a certain region or time

【相关词根词缀】 Related "animal" units: anima-; therio-; zoo-.

【同源单词】archaeofauna, avifauna, avifaunal, cryptofauna, defaunate, defaunation

词根词缀：ichno-, ichn-

【来源及含义】Greek: track, trace, footprint; pertaining to fossil footprints

【同源单词】ichneutic, ichnite, ichnocoenosis, ichnofauna, ichnoflora, ichnofossil