TY - JOUR
T1 - Revision of the lower ordovician (lower Floian; Tulean) pliomerid trilobite protopliomerella, with new species from the Great Basin, western USA
AU - McAdams, Neo E.B.
AU - Adrain, Jonathan M.
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2011/12/23
Y1 - 2011/12/23
N2 - New field sampling of classic Ibexian sections in the Great Basin has resulted in the discovery of several new species assignable to the pliomerid trilobite genus Protopliomerella Harrington, 1957. The genus was originally monotypic and based on Protopliomerops contracta Ross, 1951. Protopliomerella pauca Demeter, 1973, was later added, but it is shown herein to be a junior subjective synonym of P. contracta. The material originally assigned to Protopliomerella contracta by Ross belongs to as many as three distinct, stratigraphically separate species. New species include P. stegneri, P. bowlesi, P. kerouaci, P. seegeri, and P. okeeffeae. Two additional new species are not well enough known to name and are reported in open nomenclature. The phylogenetic status of Protopliomerella, as thus conceived, is ambiguous and the taxon may be rendered paraphyletic by the genera Pseudocybele Ross, 1951, and Lemureops McAdams and Adrain, 2009.
AB - New field sampling of classic Ibexian sections in the Great Basin has resulted in the discovery of several new species assignable to the pliomerid trilobite genus Protopliomerella Harrington, 1957. The genus was originally monotypic and based on Protopliomerops contracta Ross, 1951. Protopliomerella pauca Demeter, 1973, was later added, but it is shown herein to be a junior subjective synonym of P. contracta. The material originally assigned to Protopliomerella contracta by Ross belongs to as many as three distinct, stratigraphically separate species. New species include P. stegneri, P. bowlesi, P. kerouaci, P. seegeri, and P. okeeffeae. Two additional new species are not well enough known to name and are reported in open nomenclature. The phylogenetic status of Protopliomerella, as thus conceived, is ambiguous and the taxon may be rendered paraphyletic by the genera Pseudocybele Ross, 1951, and Lemureops McAdams and Adrain, 2009.
KW - Biostratigraphy
KW - Idaho
KW - Nevada
KW - Silicified
KW - Taxonomy
KW - Utah
UR - http://www.scopus.com/inward/record.url?scp=84555196113&partnerID=8YFLogxK
U2 - 10.11646/zootaxa.3144.1.1
DO - 10.11646/zootaxa.3144.1.1
M3 - Article
AN - SCOPUS:84555196113
SP - 1
EP - 113
JO - Zootaxa
JF - Zootaxa
SN - 1175-5326
IS - 3144
ER -