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Lindsaeaceae is a pantropical family of ferns in the order Polypodiales. It contains six or seven genera with about 220 known species, some of which also extend into the more temperate regions of eastern Asia, New Zealand, and South America. Lehtonen et al.: Phylogenetics and classification of the pantropical fern family Lindsaeaceae in the Botanical Journal of the Linnaen Society 2010
The genus Lonchitis has many morphological characteristics similar to Dennstaedtiaceae, but a few characteristics of the spore are similar to the lindsaeoid genera, and molecular data placed this genus in Lindsaeaceae.Wolf, P. G. (1997). "Evaluation of atpB Nucleotide Sequences for Phylogenetic Studies of Ferns and Other Pteridophytes." American Journal of Botany 84(10): 1429-1440 It is now placed in the related family Lonchitidaceae.
The Pteridophyte Phylogeny Group classification of 2016 (PPG I) recognized seven genera.
The extinct genus Proodontosoria from the Cenomanian aged Burmese amber of Myanmar has been assigned to the family. Other fossil remains assigned to the family include an indeterminate leaf fragment also from the Burmese amber, as well as a permineralized root from the Albian aged Aspen Shale of Wyoming.
Other genera that have been placed in the Lindsaeaceae are:
Other sources retain Xyropteris in Lindsaea.
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