Byssoarca semicostata McCoy 1844

Abstract

Byssoarca semicostata McCoy, 1844 Original source McCoy (1844): 73, pl. 11 fig. 35. Type stratum and age Middle Limestone or Calp Series (Griffith in McCoy 1862); probably Benbulben Shale Formation of the Tyrone Group (Arundian–Asbian, Visean, Mississippian) (Friedel & Amler 2024), Carboniferous. Type locality “ Manorhamilton, Manorhamilton”, County Leitrim (Griffith in McCoy 1862), Ireland. Type material Unfortunately, there is no information available on the number of syntypes studied by McCoy. Specimen NMING: F7357/A, coll. Griffith, figured by McCoy (1844: pl. 11 fig. 35), Hind (1897: pl. 11 fig. 5), Wilson (1967: pl. 3 fig. 9) and Friedel & Amler (2024: fig. 7a), was termed as “the type” in Hind (1897: 158) and is either holotype by monotypy or lectotype by subsequent designation of Hind (1897). The documents of the National Museum of Ireland, Dublin custodians state: “The counterparts of this pair of valves were recently noticed on the reverse of the matrix of the lectotype of Serpulites carbonarius (M’Coy), now numbered F7357/B. These were not seen by Hind or Wilson as the specimen was glued to a tablet with the annelid uppermost”. Remarks Hind (1897) placed the species in the genus Parallelodon.

Authors 3

1. Julia C. Friedel

   University of Cologne

   Affiliation as printed

   Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49 a, 50674 Cologne, Germany

2. Thomas A. Neubauer Aachen Department of Earth and Environmental Sciences

   Ludwig-Maximilians-Universität München · Bavarian Natural History Collections · Naturalis Biodiversity Center · Bayerische Staatssammlung für Paläontologie und Geologie

   Affiliation as printed

   SNSB - Bavarian State Collection for Palaeontology and Geology, Richard-Wagner-Strasse 10, 80333 Munich, Germany. & Department of Earth and Environmental Sciences, Palaeontology & Geobiology, Ludwig-Maximilians-Universität München, Richard-Wagner-Str. 10, 80333 Munich, Germany. & Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands

3. Michael R. W. Amler

   University of Cologne · Philipps University of Marburg

   Affiliation as printed

   Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49 a, 50674 Cologne, Germany. & Department of Geography, Philipps-Universität Marburg, Deutschhausstr. 10, 35032 Marburg, Germany