Mesonacis wileyi Gapp & Lieberman, 2014, sp. nov. ...

• Main Authors: Gapp, I. Wesley, Lieberman, Bruce S.
• Format: Text
• Language: unknown
• Published: Zenodo 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Trilobita; Redlichiida; Olenellidae; Mesonacis; Mesonacis wileyi; Mackenzie mountains; Northwest Territories
• Online Access: https://dx.doi.org/10.5281/zenodo.6136072; https://zenodo.org/doi/10.5281/zenodo.6136072

Mesonacis wileyi sp. nov. Fig. 4 Type material. Holotype KUMIP 355550. Paratypes KUMIP 355551 and PWNHC-2013.23.4-5. Olenellus zone or Waucoban Series, Dyeran stage, sensu Webster (2011a, b) and Webster et al. (2011), early Cambrian, Sekwi Formation, Mackenzie Mountains, Northwest Territories, Canada, Section 4, 430– 435m above the base of section; Section 3, 700– 800m above the base of the section. Etymology. In honour of Edward O. Wiley, University of Kansas, for his fundamental contributions to the field of phylogenetics. Diagnosis. LA does not contact anterior cephalic border furrow; width of extraocular area approximately equal to width (tr.) of glabella at L1; posterior border between LO and intergenal angle parallel to a transverse line; intergenal angle 45 to 50 degrees relative to a transverse line; genal spines terminate posteriorly opposite T5 or T6. Description. Anterior cephalic border developed as a raised ridge, length (sag.) directly anterior of LA is approximately 0.5 times length (sag.) LO; ... : Published as part of Gapp, I. Wesley & Lieberman, Bruce S., 2014, New olenelloid trilobites from the Northwest Territories, Canada, pp. 479-498 in Zootaxa 3866 (4) on pages 485-486, DOI: 10.11646/zootaxa.3866.4.2, http://zenodo.org/record/249698 ...