. Bulletin of the British Museum (Natural History), Geology. GEBEL ZELTEN, LIBYA 99 neural spine has a high posterior tubercle (text fig. 2a) from which it slopes down- wards anteriorly and projects over the odontoid process as in Okapia. The odontoid process is similar to that of Giraffa and the anterior articular facet has a depression near to and around the base of the odontoid process as in Giraffa but in contrast to Okapia in which the facet blends into the odontoid process. The anterior articular facet slopes almost vertically as in Giraffa. The intervertebral foramen (text fig. 2a) is i
. Bulletin of the British Museum (Natural History), Geology. GEBEL ZELTEN, LIBYA 99 neural spine has a high posterior tubercle (text fig. 2a) from which it slopes down- wards anteriorly and projects over the odontoid process as in Okapia. The odontoid process is similar to that of Giraffa and the anterior articular facet has a depression near to and around the base of the odontoid process as in Giraffa but in contrast to Okapia in which the facet blends into the odontoid process. The anterior articular facet slopes almost vertically as in Giraffa. The intervertebral foramen (text fig. 2a) is in the same position as that of Okapia, it has a deep postero-ventral channel which joins it to the anterior channel of the vertebrarterial canal. This canal begins near the middle of the bone and emerges on the posterior face, dorso-lateral to the articulation. The posterior articular process is less pronounced than in Okapia, its articular facet is almost circular and faces postero-ventrally. The transverse. Fig. 2. The vertebrae of Zarafa. (Half natural size.), (a) Lateral view of the axis (). (b) Lateral view of the seventh cervical vertebra (). (c) Lateral view of the fourth lumbar vertebra (). (d) The anterior face of the fourth lumbar vertebra (). (e). Anterior face of the sixth lumbar vertebra (). (f) Lateral view of the eighth thoracic vertebra (). a: neural spine, b: posterior tubercle, c: posterior articular process, d: odontoid process, e: inter- vertebral foramen, f: vertebrarterial canal, g: transverse process, h: anterior process, j: nutrient foramen, k: tubercular facet. 1: posterior facet for the head of the rib. m: anterior facet for the head of the rib. n: 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 (Natur
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