As nouns the difference between microfossil and hystrichosphere
is that microfossil is any microscopic fossil, such as that of a pollen grain while hystrichosphere is (fossilogy) a microfossil of a dinophyte cyst, having a spherical shape and thick walls.
microfossil
English
Noun
(
en noun)
any microscopic fossil, such as that of a pollen grain
See also
*mesofossil
*micropaleontology
hystrichosphere
English
Noun
(
en noun)
(fossilogy) A microfossil of a dinophyte cyst, having a spherical shape and thick walls.