Dasyleptus

Extinct genus of insects From Wikipedia, the free encyclopedia

Dasyleptus is an extinct genus of wingless insects in the order Archaeognatha, and the only member of the family Dasyleptidae. They resembled juveniles of their modern relatives and had a single lengthy filament projecting from the end of the abdomen. They also had a pair of leg-like cerci and some non-ambulatory abdominal appendages. The largest specimens reached 30 millimetres (1.2 in) or more, not counting the length of the filament.[2] Dasyleptus species are mostly known only from the Late Carboniferous and Permian, but one species recorded from the Middle Triassic indicates that they survived the Permian–Triassic extinction event.[3] Dasyleptus was formerly placed in its own extinct order, Monura, but is this is now treated as a suborder of Archaeognatha.[4][5]

Phylum:Arthropoda
Class:Insecta
Order:Archaeognatha
Suborder:†Monura
Sharov, 1957
Quick facts Scientific classification, Species ...
Dasyleptus
Temporal range: Late Carboniferous–Middle Triassic[1]
Dasyleptus sp. fossil
Life reconstruction of D. brongniarti
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Archaeognatha
Suborder: †Monura
Sharov, 1957
Family: †Dasyleptidae
Sharov, 1957
Genus: †Dasyleptus
Brongniart, 1885
Species

See text

Synonyms

Lepidodasypus Durden, 1978

Close
Underside of D. triassicus (right) with telson truncated, compared to early bristletail Gigamachilis (left). Centre shows smaller full body ventral view of D. triassicus

Species

The genus includes the following species:[4][1]

  • Dasyleptus artinskianus Engel, 2009 – Early Permian (Artinskian), Wellington Formation, Kansas, United States
  • Dasyleptus brongniarti Sharov, 1957 – Middle Permian (Roadian), Mitina Formation, Kuznetsk Basin, Russia
  • Dasyleptus lucasi Brongniart, 1885 (type species) – Late Carboniferous (Gzhelian), Commentry Shales, France
  • Dasyleptus noli Rasnitsyn, 2000 – Late Carboniferous (Gzhelian), Commentry Shales, France
  • Dasyleptus rowlandi Rasnitsyn in Rasnitsyn et al., 2004 – Early Permian (Asselian), Bursum Formation, New Mexico, United States
  • Dasyleptus sharovi (Durden, 1978) – Early Permian (Artinskian), Wellington Formation, United States
  • Dasyleptus sinensis Liu et al., 2021[6] – Late Permian/Early Triassic, Kayitou Formation, China
  • Dasyleptus triassicus Bechly & Stockar, 2011 – Middle Triassic (Ladinian), Meride Limestone, Monte San Giorgio, Switzerland

See also

References

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