title: Comment on "Nocturnality in dinosaurs inferred from scleral ring and orbit morphology".
abstract: Schmitz and Motani (Reports, 6 May 2011, p. 705) claimed to definitively reconstruct activity patterns of Mesozoic archosaurs using the anatomy of the orbit and scleral ring. However, we find serious flaws in the data, methods, and interpretations of this study. Accordingly, it is not yet possible to reconstruct the activity patterns of most fossil archosaurs with a high degree of confidence.
authors.affiliation: Department of Physiology, Midwestern University, 19555 North 59th Avenue, Glendale, AZ 85308, USA.
authors.forename: Margaret I
authors.initials: MI
authors.lastname: Hall
authors.forename: E Christopher
authors.initials: EC
authors.lastname: Kirk
authors.forename: Jason M
authors.initials: JM
authors.lastname: Kamilar
authors.forename: Matthew T
authors.initials: MT
authors.lastname: Carrano
mesh_terms: D000204:Activity Cycles; D000818:Animals; D025061:Dinosaurs / Q000033:anatomy & histology* / Q000502:physiology*; D005580:Fossils; D055254:Night Vision; D009915:Orbit / Q000033:anatomy & histology*; D012590:Sclera; D014785:Vision, Ocular