[6] A further species, Hungerfordia fionae from the Late Devonian of South Africa is known from the largest sample, analysis of which suggests that variations used to differentiate between H. dichotoma and H. trichotoma may represent growth variations accountable by a single taxon.
[3] With further excavations, in subsequent years, hundreds of specimens of Hungerfordia have been collected, which are housed within the Devonian Ecosystems Laboratory, Albany Museum in Makhanda, Eastern Cape - (with further good examples still being added to the collection during ongoing excavations (2021) by the research team of the Devonian Ecosystems Project).
Hungerfordia fionae comprises dichotomous axes and is differentiated from other species by the presence of small bud-like appendages along the margins, which are preserved in a minority of specimens, and may more commonly have been shed in life or during transport.
[4] Hungerfordia fionae can be characterised by its thalloid branches with rounded ends that bear bud-like enations (or outgrowths) around the margins.
Despite being incomplete, specimens suggest a four-frond structure emerging from two closely spaced initial bifurcations.