The Cephalozygoptera, a new, extinct suborder of Odonata with new taxa from the early Eocene Okanagan Highlands, western North America
The Cephalozygoptera, a new, extinct suborder of Odonata with new taxa from the early Eocene Okanagan Highlands, western North America
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DOI：
10.11646/zootaxa.4934.1.1
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发表时间：
2021-02-24
期刊：
影响因子：
0.9
通讯作者：
Mathewes, Rolf W.
中科院分区：
文献类型：
--
作者：
Archibald, S. Bruce;Cannings, Robert A.;Mathewes, Rolf W.
我们描述了头翅目，蜻蜓亚目的一个新亚目，由双翅目Dysagrionidae和Sieblosiidae科组成，可能还有Whetheetaksidae n.fam。头翅目与齐翅目相近，但最显著的区别是头部的独特形态。其中属植物59种，分属于19个属和1个属。在早白垩世发现1个种(Congqingia Rhora Zhang)，可能有3个种来自古新世，其余的从早始新世到晚中新世。本文记述了加拿大不列颠哥伦比亚省、加拿大和美国华盛顿的伊普斯奥卡纳根高地的新分类群：现有属Dysagrion(D.pruettae)的Dysagrionidae新种16种；新属Okanagrion(O.thadgillae，O.hobani，O.beardi，O.lochum，O.angstum，O.dorrellae，O.iquegalatum，O.worley ae，均为新种)；Okanopteryx(O.jeppenowum，O.fraseri，O.macababenses，均为新种)；A、D.sp.B，均为新种；新科Whetheetaksidae(Whetheetaksa Milerae)一新属新种。
We describe the Cephalozygoptera, a new, extinct suborder of Odonata, composed of the families Dysagrionidae and Sieblosiidae, previously assigned to the Zygoptera, and possibly the Whetwhetaksidae n. fam. The Cephalozygoptera is close to the Zygoptera, but differs most notably by distinctive head morphology. It includes 59 to 64 species in at least 19 genera and one genus-level parataxon. One species is known from the Early Cretaceous (Congqingia rhora Zhang), possibly three from the Paleocene, and the rest from the early Eocene through late Miocene. We describe new taxa from the Ypresian Okanagan Highlands of British Columbia, Canada and Washington, United States of America: 16 new species of Dysagrionidae of the existing genus Dysagrion (D. pruettae); the new genera Okanagrion (O. threadgillae, O. hobani, O. beardi, O. lochmum, O. angustum, O. dorrellae, O. liquetoalatum, O. worleyae, all new species); Okanopteryx (O. jeppesenorum, O. fraseri, O. macabeensis, all new species); Stenodiafanus (S. westersidei, new species); the new genus-level parataxon Dysagrionites (D. delinei new species, D. sp. A, D. sp. B, both new); and one new genus and species of the new family Whetwhetaksidae (Whetwhetaksa millerae).