Skleroptera

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Kingdom: Animalia
Subregnum: Eumetazoa
Cladus: ParaHoxozoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Cladus: Mandibulata
Cladus: Pancrustacea
Cladus: Allotriocarida
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Holometabola
Superordo: Coleopterida
Ordo: †
Familia: †Stephanastidae

Skleroptera Kirejtshuk & Nel, 2013

• Kirejtshuk, A.G. & Nel, A. 2013. Skleroptera, a new order of holometabolous insects (Insecta) from the Carboniferous. Zoosystematica Rossica 22(2): 247–257. DOI: 10.31610/zsr/2013.22.2.247 . Reference page. 

• Beutel, R.G., Yan, E.V. & Kukalová-Peck, J. 2019. Is †Skleroptera (†Stephanastus) an order in the stemgroup of Coleopterida (Insecta)? Insect Systematics & Evolution 50(5): 670–678. DOI: 10.1163/1876312X-00002187 . Reference page. 
• Kirejtshuk, A.G. & Nel, A. 2020. Reply to the Paper “Beutel et al. 2018. Is †Skleroptera (†Stephanastus) an order in the stemgroup of Coleopterida (Insecta)?”. Insect Systematics & Evolution 51(3): 375–383. DOI: 10.1163/1876312X-00002206 . Reference page.