Grisellatheca

Grisellatheca was a genus of land plant with branching axes.^[1] It is known from charcoalified Early Devonian deposits, its type locality being the Brown Clee Hill lagerstatten.^[2] Its Terahedraletes spores form permanent tetrads.^[3]

Genus:†Grisellatheca
D.Edwards, C.H.Wellman & L.Axe, 1999

Species:

†G. sulopensis

Quick facts Scientific classification, Binomial name ...

Grisellatheca Temporal range: Early Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Plantae
Genus:	†Grisellatheca D.Edwards, C.H.Wellman & L.Axe, 1999
Species:	†G. sulopensis
Binomial name
†Grisellatheca sulopensis D.Edwards, C.H.Wellman & L.Axe, 1999

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Grisellatheca's internal anatomy comprises banded tubes, but it lacked an external cuticle.^[3] It shows some liverwort characteristics, and is hesitantly assigned to this group.^[3]