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. 2021 Nov 2;9:e12374. doi: 10.7717/peerj.12374

Figure 1. Occurrences of Palaenigma wrangeli (Schmidt, 1874) in north Estonia.

Figure 1

(A) Map of Baltoscandia with national boundaries and capitals (black dots). (B) Map of Estonia with P. wrangeli occurrences discussed herein (yellow dots), and with outline of Late Ordovician facies belts (from Harris et al., 2004). (C) Middle –Late Ordovician Regional stages of Baltoscandia (stars mark occurrences of P. wrangeli. Hirn., Hirnantian. Map data: R Package, maps Version 3.3.0 (https://cran.r-project.org/web/packages/maps/maps.pdf).