. Bulletin of the British Museum (Natural History), Geology. 380 P. J. WHYBROW, H. A. McCLURE & G. F. ELLIOTT. Fig. 10 Algal crust with probable traces of chironomid larval tubes, centre. Same sample as Fig. 8. x 45. the area appears to have been near Kashm Khizami (Fig. 3), where marine fossils are associated with beach boulder conglomerates. A schematic cross section of the area indicating the relationship of the stratigraphy to the vertebrate site is shown in Fig. 5. The main excavation was carried out in hard, unbedded White N9 (United States Geological Survey Rock-Color Chart 1980) sa
. Bulletin of the British Museum (Natural History), Geology. 380 P. J. WHYBROW, H. A. McCLURE & G. F. ELLIOTT. Fig. 10 Algal crust with probable traces of chironomid larval tubes, centre. Same sample as Fig. 8. x 45. the area appears to have been near Kashm Khizami (Fig. 3), where marine fossils are associated with beach boulder conglomerates. A schematic cross section of the area indicating the relationship of the stratigraphy to the vertebrate site is shown in Fig. 5. The main excavation was carried out in hard, unbedded White N9 (United States Geological Survey Rock-Color Chart 1980) sandstones. These were well sorted with fine-grained (about 280 /mi), angular to subrounded, micrite supported quartz clasts. Occasionally, rounded micri- tic pebbles were present. Voids in the sandstones were sometimes filled with sparry calcite or, rarely, a form of manganese oxide known as wad. The excavation (about 22 m x 17 m, 50- 80 cm in depth) produced scores of isolated bones, mainly lower jaws, teeth, limb bones, pectoral and pelvic elements, mostly of rhinoceros. None was preferentially orientated. Verte- brae and ribs were rare and, although none of the bones showed sign of depositional transport, rhinoceros mandibles had been broken and their anterior parts were missing. Except for the dryopithecine maxilla (see Andrews & Martin, this issue, p. 383), no other cranial bones were excavated. About 5 m stratigraphically higher than the main excavation, and 110 m to its west, the sediments exposed on a ridge trending north-east showed a change in lithology. They consisted of an unsupported conglomerate formed of pebbles and cobbles of micritic limestone. In these sediments a proboscidean scapula and incomplete but uncrushed fish skulls were found (see Greenwood, this issue, p. 451). On top of this ridge were five in situ fallen logs encrusted with stromatolite (Fig. 6). Three measured 30m, 5-3m and 7-2m in length and all, including the encrustation, were about 15m in
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