CLADOENDESIS OF EPHEMEROPTERA
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†Plesiomorphon Proximicorneus

(Panephemeroptera Euephemeroptera Euplectoptera Posteritorna Prosopistoma/f1=g2 - Proximicorneus)

Nomen hierarchicum: Proximicorneus/g [g:2018].

In circumscription fits:

— gen. Proximicorneus Lin & Shih & Zhao & Ren 2018: 402

References. Lin & Shih & Zhao & Ren 2018: .

Plesiomorphies of Priximicorns.

(1) Fore wing [greatly modified – see Prosopistoma/f1=g2 (1)] retains furcations and triads of RS (in contrast to Prosopistoma/f2=g3).

(2) Winged stages retain 3-segmented tarsi and ephemeropteroid claws (see Index of characters [2.2.85]).

(3) In winged stages, paracercus vestigial (see Index of characters [2.3.22]).

Size. Small, fore wing length 1.5 mm.

Age and distribution. Cretaceous: Burmese amber.

Nominal species in Proximicorneus/g(1): 

rectivenius Lin & Shih & Ren (in Lin & Shih & Zhao & Ren) 2018 [Proximicorneus] — typus nominis Proximicorneus