T113 Trends and Patterns in Neoproterozoic–Cambrian Biodiversity and Evolutionary Originations II

Wednesday, 28 October 2020
10:00 AM - 12:00 PM
Meeting Rooms

FIRST OCCURRENCE OF THE LAURENTIAN TRILOBITE PSEUDATOPS RETICULATUS (WALCOTT) FROM THE MARIANIAN (CAMBRIAN SERIES 2) OF THE IBERIAN PENINSULA

Paper number: T113-9
Program: Technical Sessions
Time: 11:40 AM – 11:50 AM

Authors

Abstract

New atopid trilobites are described from the Marianian (Cambrian Series 2) of northern Huelva province (Andalusia, Spain), in the Sierra de Aracena y Picos de Aroche Natural Park. The Laurentian species Pseudatops reticulatus (Walcott) is recognized for the first time in the Mediterranean subprovince. Specimens of P. reticulatus are described from the Cumbres beds and Herrerías shale, dated as middle-late Marianian (Cambrian Series 2, Stage 4). Pseudatops is present in the Taconic Allochthon, western and Eastern Avalonia and Siberia. Its presence in the Iberian Peninsula allows biostratigraphic and paleobiogeographic correlations between Avalonian and Taconic localities with the Mediterranean subprovince. This work is a contribution to the IGCP Project 652.

Geological Society of America Abstracts with Programs. Vol. 52, No. 6

doi: 10.1130/abs/2020AM-350730

© Copyright 2020 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.