Balnibarbi erugata subsp. erugata erugata Fortey 1974

• Main Author: Hopkins, Melanie J.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Trilobita; Ptychopariida; Olenidae; Balnibarbi; Balnibarbi erugata; Balnibarbi erugata erugata fortey; 1974; Svalbard; Ny Friesland; Valhallfonna; Spitsbergen
• Online Access: https://doi.org/10.5281/zenodo.5461566; http://treatment.plazi.org/id/B10287DEFF9BB054FE5DFD4FFB9AFB72

Balnibarbi erugata erugata Fortey, 1974 Figure 2A–D, E Balnibarbi erugata Fortey, 1974: 31, pl. 5, fig. 1-10. HOLOTYPE: Cranidium, PMO NF 3016 (figured in Fortey, 1974: pl. 5, fig. 1-3). TYPE LOCALITY: Profilstranda, Olenidsletta Member, Valhallfonna Formation, Ny Friesland, Spitsbergen, Svalbard. STRATIGRAPHIC RANGE: Throughout trilobite zone V 1c and the very beginning of V 2a (Fortey, 1980). These zones coincide with the upper Oepikodus evae and lower Oepikodus intermedius conodont zones, and the Didymographtus protobifidus graptolite zone within the upper Floian (fig. 1; see also Kröger et al., 2017). DIAGNOSIS: Balnibarbi erugata subspecies with relatively short (sag.) preglabellar field (<0.35 length of glabella) and fine granulation present on glabella, axial, palpebral, and posterior border furrows, and on frontal area adjacent to anterior border furrow. Published as part of Hopkins, Melanie J., 2019, Phylogenetic analysis and revision of the trilobite subfamily Balnibarbiinae (Olenidae), pp. 1 in American Museum Novitates 2019 (3928) on page 1, DOI:10.1206/3928.1, http://zenodo.org/record/5369854