Culullitheca

Culullitheca; Temporal range:
Scientific classification
Kingdom:	Plantae
Clade:	Embryophytes
Clade:	Tracheophytes
Stem group:	†Rhyniophytes
Form taxon:	†Cooksonioidea
Genus:	†Culullitheca; Wellman et al. 1998

Culullitheca 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 lagerstätten.² Its spores formed permanent dyads.³

References

Boyce, C.K. (2008). "How green was Cooksonia? The importance of size in understanding the early evolution of physiology in the vascular plant lineage". Paleobiology. 34 (2): 179–194. doi:10.1666/0094-8373(2008)034[0179:HGWCTI]2.0.CO;2. ISSN 0094-8373.
Glasspool, I.; Edwards, D.; Axe, L. (2006). "Charcoal in the Early Devonian: A wildfire-derived Konservat–Lagerstätte". Review of Palaeobotany and Palynology. 142 (3–4): 131–136. doi:10.1016/j.revpalbo.2006.03.021.
Wellman, C. H.; Edwards, D.; Axe, L. (1998). "Permanent dyads in sporangia and spore masses from the Lower Devonian of the Welsh Borderland". Botanical Journal of the Linnean Society. 127 (2): 117–147. doi:10.1111/j.1095-8339.1998.tb02092.x.

[Boyce2008-1] Boyce, C.K. (2008). "How green was Cooksonia? The importance of size in understanding the early evolution of physiology in the vascular plant lineage". Paleobiology. 34 (2): 179–194. doi:10.1666/0094-8373(2008)034[0179:HGWCTI]2.0.CO;2. ISSN 0094-8373.

[Glasspool2006-2] Glasspool, I.; Edwards, D.; Axe, L. (2006). "Charcoal in the Early Devonian: A wildfire-derived Konservat–Lagerstätte". Review of Palaeobotany and Palynology. 142 (3–4): 131–136. doi:10.1016/j.revpalbo.2006.03.021.

[Wellman1998-3] Wellman, C. H.; Edwards, D.; Axe, L. (1998). "Permanent dyads in sporangia and spore masses from the Lower Devonian of the Welsh Borderland". Botanical Journal of the Linnean Society. 127 (2): 117–147. doi:10.1111/j.1095-8339.1998.tb02092.x.

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