. The Cyathaspididae; a family of Silurian and Devonian jawless vertebrates. Cyathaspididae. 430 FIELDIANA: GEOLOGY, VOLUME 13 w--1. Fig. 150. Anglaspis insignis (from Kiaer, 1932); Paleontologisk Museum, Oslo, D 186 (X 3). A, dorsal shield; B, ventral shield, designated as type. orb, orbit. Occurrence.—Early Devonian (Late Downtonian), zone of Tra- quairaspis symondsi, Shropshire, Herefordshire, Brecknockshire, and Pembrokeshire, Great Britain. This species is doubtfully reported by White (1950, p. 56) from the Early Dittonian (zone of Protopter- aspis leathensis) of Worcestershire, England.
. The Cyathaspididae; a family of Silurian and Devonian jawless vertebrates. Cyathaspididae. 430 FIELDIANA: GEOLOGY, VOLUME 13 w--1. Fig. 150. Anglaspis insignis (from Kiaer, 1932); Paleontologisk Museum, Oslo, D 186 (X 3). A, dorsal shield; B, ventral shield, designated as type. orb, orbit. Occurrence.—Early Devonian (Late Downtonian), zone of Tra- quairaspis symondsi, Shropshire, Herefordshire, Brecknockshire, and Pembrokeshire, Great Britain. This species is doubtfully reported by White (1950, p. 56) from the Early Dittonian (zone of Protopter- aspis leathensis) of Worcestershire, England. Diagnosis.—The length of the dorsal shield is 24-30 mm. Cen- trally there are 23^-33^ dentine ridges per millimeter, and their crests are sharp and high. The orbital ratio is .16-18, and the pineal ratio is . Anglaspis insignis Wills. Figures 99,B, 150. Anglaspis insignis Kiaer, 1932, Skr. Svalbard Ishavet, 52, p. 20, pi. 7 (nomen nudum); Wills, 1935, Trans. Roy. Soc. Edinburgh, 58, pp. 429, 432-433; Denison, 1953, Fieldiana: Geol. 11, no. 7, p. 292. Anglaspis insignis var. brevis Kiaer, 1932, Skr. Svalbard Ishavet, 52, p. 20, pi. 6, fig. 1 (nomen nudum). Fraenkelaspis insignis Stensio, 1958, Traite de Zool., 13, fasc. 1, p. 315, figs. 168C-D, 180A. Fraenkelaspis brevis Stensio, 1958, Traite de Zool., 13, fasc. 1, fig. 205B. Type.—Paleontologisk Museum, Oslo, D 186, ventral shield (fig. 150,B).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Denison, Robert H. (Robert Howland), 1911-1985; Chicago Natural History Museum. Chicago : Chicago Natural History Museum Press
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