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The Middle Triassic Megafossil Flora of the Basin Creek Formation, Nymboida Coal Measures, New South Wales, Australia. Part 3. Fern-like Foliage

2003; Linnean Society of New South Wales; Volume: 124; Linguagem: Inglês

0370-047X

W. B. Keith Holmes,

Botany, Ecology, and Taxonomy Studies

Two quarries in the Basin Creek Formation of the Middle Triassic Nymboida Coal Measures have yielded numerous examples of fern-like foliage. No affiliated fertile material is available to place the fronds in a natural classification. Twenty three species in twelve genera are described as morpho-taxa in Order and Family Incertae Sedis. Plants described in this paper are:- Cladophlebis conferta sp. nov., C. octonerva sp. nov., C. paucinerva sp. nov., C. retallackii sp. nov., C. sinuata sp. nov., C. tenuipinnula sp. nov., Dictyonymba sparnosa gen. et sp. nov., Gouldianum alethopteroides gen. et sp. nov., Leconama stachyophylla gen. et sp. nov., Micronymbopteris repens gen. et sp. nov., Nymbiella lacerata gen. et sp. nov., Nymboidiantum glossophyllum (Tenison-Woods) gen. et comb. nov., N. multilobatum gen. et sp. nov., N. elegans gen. et sp. nov., N. fractiflexum gen. et sp. nov., N. robustum gen. et sp. nov., Nymbophlebis polymorpha gen. et sp. nov., Nymbopteron dejerseyi (Retallack) gen. et comb. nov., N. foleyi gen. et sp. nov., N. uncinatum gen. et sp. nov., Nymborhipteris radiata gen. et sp. nov., Ptilotonymba curvinervia gen. et sp. nov. and Sphenopteris speciosa sp. nov. The diversity of this new material demonstrates the remarkable recovery of Gondwana vegetation following the end-Permian extinction event.