Tarella was a genus of Early Devonian land plant with branching axes. Fossils came from Pragian age rocks (413 to 411 million years ago). A cladogram published in 2004 by Crane et al. places Tarella in the core of a paraphyletic stem group of broadly defined "zosterophylls", basal to the lycopsids (living and extinct clubmosses and relatives).
Hao and Xue in 2013 listed the genus as a zosterophyll.
References
External links Cladogram from Crane, Herendeen & Friis 2004