Complex sentence: Additionally, oval and theriomorphic cosmetic palettes appear to be used in this period, however, the workmanship is still very rudimentary and the relief artwork for which they were later known is not yet present.
Split into simpler sentences: Additionally, oval and theriomorphic cosmetic palettes appear to be used in this period. However, the workmanship was still very rudimentary and the relief artwork for which they were later known is not yet present.