Leiosphaerid

Leiosphaeridia is a form-genus of acritarchs proposed by Eisenack in 1958. The grouping was refined to represent a more natural group by Jankauskas.cite journal
author = Buick, R.
coauthors = Knoll, A.H.
year =
title = Acritarchs And Microfossils From The Mesoproterozoic Bangemall Group, Northwestern Australia
journal = Journal of Paleontology
volume = 73
issue = 5
pages = 744–764
issn = 0022-3360]

Some leisphaerid acritachs have been recognised as vaucheriacean algæ.cite journal
author = Butterfield, N.J.
year = 2004
title = A vaucheriacean alga from the middle Neoproterozoic of Spitsbergen: implications for the evolution of Proterozoic eukaryotes and the Cambrian explosion
journal = Paleobiology
volume = 30
issue = 2
pages = 231–252
doi = 10.1666/0094-8373(2004)030]

The class represents shallow-water environments.cite journal
author = Li, J.
coauthors = Servais, T.; Yan, K.; Zhu, H.
year = 2004
title = A nearshore — offshore trend in acritarch distribution from the Early-Middle Ordovician of the Yangtze Platform, South China
journal = Review of Palaeobotany and Palynology
volume = 130
issue = 1-4
pages = 141–161
doi = 10.1016/j.revpalbo.2003.12.005]

References