Neotypes for some upper Silurian acanthodian taxa from the Baltic Sea Region and the Welsh Borderland

C J Burrow,T Märss

doi:10.3176/earth.2022.02

Abstract

Neotypes for some upper Silurian acanthodian taxa from the Baltic Sea Region and the Welsh Borderland

Highlights

Specimens from the bone beds of the Ohesaare Cliff on Saaremaa Island, Estonia (Fig. 1A, B), were the basis for the taxonomic description of vertebrate microremains by Christian Pander in 1856
After Pander’s (1856) publication, more species were subsequently erected for acanthodian scales from Saaremaa Island by Rohon (1893) and Hoppe (1931), but Gross (1947) regarded these taxa as junior synonyms of Pander’s two species Gomphodus sandelensis and Nostolepis striata
Gross regarded many of the species erected by Brotzen (1934) and Lehman (1937) for acanthodian scales from Baltic-derived Lochkovian erratics in northern Germany and from the upper Silurian of Scania, Sweden, respectively, as junior synonyms of G. sandelensis and N. striata

Summary

Introduction

Specimens from the bone beds of the Ohesaare Cliff on Saaremaa Island, Estonia (Fig. 1A, B), were the basis for the taxonomic description of vertebrate microremains by Christian Pander in 1856. After Pander’s (1856) publication, more species were subsequently erected for acanthodian scales from Saaremaa Island by Rohon (1893) and Hoppe (1931), but Gross (1947) regarded these taxa as junior synonyms of Pander’s two species Gomphodus sandelensis and Nostolepis striata.

Results

Conclusion