Petaluridae

The petaltails of the family Petaluridae are apparently the most ancient of the extant true dragonflies (infraorder Anisoptera), having fossil members from as early as the Jurassic (over 150 million years ago).

Fossil petalurid Protolindenia wittei, Upper Jurassic, Solnhofen Plattenkalk

Petaluridae
Tanypteryx pryeri
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Odonata
Infraorder: Anisoptera
Family: Petaluridae
Needham, 1903[1]
Genera

Modern petalurids include only 11 species, one of which, the Australian Petalura ingentissima, is the largest of living dragonflies, having a wingspan of up to 160 mm and a body length of over 100 mm. Other Australian species include Petalura gigantea (commonly known as the giant dragonfly). In the United States, two species are found, one on either coast. The larvae live primarily in stream banks, mostly in burrows, but the larvae of the eastern US species, Tachopteryx thoreyi, the gray petaltail, live in depressions under wet leaves.[2] The semiaquatic habitat of the larvae makes the petaltails unique in the modern dragonfly families.

Notes
  1. Dijkstra, K.D.B.; et al. (2013). "The classification and diversity of dragonflies and damselflies (Odonata). In: Zhang, Z.-Q. (Ed.) Animal Biodiversity: An Outline of Higher-level Classification and Survey of Taxonomic Richness (Addenda 2013)". Zootaxa. 3703 (1): 36–45. doi:10.11646/zootaxa.3703.1.9. hdl:10072/61365.
  2. Paulson, Dennis R. (2009). Dragonflies and Damselflies of the West. Princeton University Press. ISBN 0-691-12281-4.
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gollark: Even handling/generating/whatever but not evaluating thunks technically does consume power.
gollark: Yes, but most of them aren't (allegedly) functionally pure.
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References


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