Dasyleptus

"Monura" redirects here. For a synonym of a genus of rotifers, see Colurella.

Dasyleptus Temporal range: Late Carboniferous–Middle Triassic [1] PreꞒ Ꞓ O S D C P T J K Pg N
Dasyleptus sp. fossil
Scientific 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
LepidodasypusDurden, 1978

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 now treated as a suborder of Archaeognatha. ^{[4] [5]}

Species

The genus includes the following species: ^{[4] [1]}

• Dasyleptus artinskianusEngel, 2009 – Early Permian (Artinskian), Wellington Formation, Kansas, United States
• Dasyleptus brongniartiSharov, 1957 – Middle Permian (Roadian), Mitina Formation, Kuznetsk Basin, Russia
• Dasyleptus lucasiBrongniart, 1885 (type species) – Late Carboniferous (Gzhelian), Commentry Shales, France
• Dasyleptus noliRasnitsyn, 2000 – Late Carboniferous (Gzhelian), Commentry Shales, France
• Dasyleptus rowlandiRasnitsyn 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 sinensisLiu et al., 2021 ^[6] – Late Permian/Early Triassic, Kayitou Formation, China
• Dasyleptus triassicusBechly & Stockar, 2011 – Middle Triassic (Ladinian), Meride Limestone, Monte San Giorgio, Switzerland

See also

• Tonganoxichnus , a trace fossil attributed to Monura

References

1. Zhang, Weiting; Li, Hu; Shih, Chungkun; Zhang, Aibing; Ren, Dong (August 2018). "Phylogenetic analyses with four new Cretaceous bristletails reveal inter-relationships of Archaeognatha and Gondwana origin of Meinertellidae". Cladistics. 34 (4): 384–406. doi:10.1111/cla.12212. PMID   34649368. S2CID   90962396.
2. Hoell, H.V.; Doyen, J.T. & Purcell, A.H. (1998). Introduction to Insect Biology and Diversity (2nd ed.). Oxford University Press. p. 321. ISBN   0-19-510033-6.
3. Prokop, Jakub; Nel, André; Engel, Michael S. (2023). "Diversity, Form, and Postembryonic Development of Paleozoic Insects". Annual Review of Entomology. 68 (1): 401–429. doi: 10.1146/annurev-ento-120220-022637 .
4. Bechly, G.; Stockar, R. (2011). "The first Mesozoic record of the extinct apterygote insect genus Dasyleptus (Insecta: Archaeognatha: Monura: Dasyleptidae) from the Triassic of Monte San Giorgio (Switzerland)" (PDF). Palaeodiversity. 4: 23–37.
5. "Suborder †Monura Sharov 1957". The Paleobiology Database . Retrieved 26 November 2020.
6. Gui-Chun Liu; Hua Zhang; Chen-Yang Cai; Ai-Hua Yuan; Yu-Qing Zheng; Di-Ying Huang (2019). "The bristletail genus Dasyleptus (Insecta: Archaeognatha: Dasyleptidae) from the Upper Permian-Lower Triassic Kayitou Formation of SouthWestern China". Historical Biology: An International Journal of Paleobiology. 33 (8): 1292–1296. doi:10.1080/08912963.2019.1692342. S2CID   213642030.