Age of lower Paleozoic rocks composing erosional outliers on Manpupuner Ridge (Northern Urals)

Abstract

The article presents the first U-Pb data on the age of the rocks composing scenic erosional outliers located on the Manpupuner Ridge in the Northern Urals. Based on the analysis of the ages of detrital zircons micaceous quartzites exposed on the Manpupuner Ridge are thought to belong to Lower Ordovician Telpos Formation. Sources of clastic material are supposed.

Typhlocybinae leafhoppers (Hemiptera, Cicadellidae) from Eocene Rovno amber reveal a transition in wing venation and a defensive adaptation

“…Typhlocybinae is the second-largest subfamily of leafhoppers, with >6,000 described extant species placed in ~300 genera and five tribes. Although the oldest fossil Cicadellidae are known from the Early Cretaceous (Aptian; Hamilton, 1990, 1992; Martill et al, 2021) and recent molecular time trees place the origin of this family in the Cretaceous (~112–138 Ma; Dietrich et al, 2017; Johnson et al, 2018), the oldest typhlocybine fossils known so far are from Eocene Baltic amber (36.4–36.8 Ma; Iakovleva, 2017; Iakovleva et al, 2021).…”