Extended Data Figure 2: T. borealis MGUH 30500, frontal appendage.
From: A suspension-feeding anomalocarid from the Early Cambrian
a, Part, photographed submerged in water and with high-angle illumination. b, Counterpart, displaying articulating membranes across the appendage, as indicated by their relatively lower reflectivity. c, Detail of b, and the articulating membranes (Am) and articles (Art) along the mid-section of the appendage. d, Detail of broken spine in b, displaying auxiliary spines.
