. Bulletin of the British Museum (Natural History), Geology. ICHTHYOKENTEMA PURBECKENSIS 9 The frontal (fr.) is the usual very large bone, meeting its fellow in the mid-line and the parietal and dermopterotic posteriorly. Above the orbit the lateral edge of the frontal is perfectly smooth, and shows no signs of the articulation of the I S mm. I Fig. i . Ichthyokentema purbeckensis. Reconstruction of skull and pectoral girdle in dorsal view. For explanation of lettering see p. 43. supraorbitals. The frontal is ornamented with weak ridges which radiate from its centre, and are shorter and m

---

. Bulletin of the British Museum (Natural History), Geology. ICHTHYOKENTEMA PURBECKENSIS 9 The frontal (fr.) is the usual very large bone, meeting its fellow in the mid-line and the parietal and dermopterotic posteriorly. Above the orbit the lateral edge of the frontal is perfectly smooth, and shows no signs of the articulation of the I S mm. I Fig. i . Ichthyokentema purbeckensis. Reconstruction of skull and pectoral girdle in dorsal view. For explanation of lettering see p. 43. supraorbitals. The frontal is ornamented with weak ridges which radiate from its centre, and are shorter and more irregular on the posterior part of the bone. Anteri- orly, the frontal tapers and ends over the 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 British Museum (Natural History). London : BM(NH)

---

Size: 1263px × 1977px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauthorbritishmuseumnaturalhistory, bookcentury1900, bookcoll