acritarch

== English == === Etymology === From Ancient Greek ἄκριτος (ákritos, “doubtful, indistinguishable”) +‎ -arch. === Pronunciation === IPA(key): /ˈækɹɪtɑː(ɹ)k/ === Noun === acritarch (plural acritarchs) (paleontology, palynology) Any small, non-acid-soluble (i.e. non-carbonate, non-siliceous) organic fossil that cannot be classified. ==== Translations ==== ==== See also ==== acritarch on Wikipedia.Wikipedia