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Paper No. 113-8
Presentation Time: 11:40 AM

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


COLLANTES, Luis1, MAYORAL, Eduardo1, LIÑÁN, Eladio2 and GOZALO, Rodolfo3, (1)Department of Earth Sciences, University of Huelva, Huelva, 21110, Spain, (2)Área y Museo de Paleontología, Universidad de Zaragoza, Pedro Cerbuna, 12, Zaragoza, E-50009, Spain, (3)Depto. de Geología, Universitat de Valencia, Burjasot, E-46100, Spain

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.

Session No. 113

T67. Trends and Patterns in Neoproterozoic–Cambrian Biodiversity and Evolutionary Originations II
Wednesday, 28 October 2020: 10:00 AM-12:00 PM
Geological Society of America Abstracts with Programs. Vol 52, No. 6
doi: 10.1130/abs/2020AM-350730
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