Collection Protocols

Fossils were collected from the surface and from a narrow test trench approximately 30 cm deep. Apparent stratification suggested that the samples from the trench could be broken into an upper layer (upper 15 cm) and a lower layer (lower 15 cm). However, near the base of the deposits a modern match was discovered, suggesting complex bioturbation. Therefore Generator Dome is not considered to be a reliably stratified locality, and it is treated here as a bulk sample from a mixed deposit. It is not clear, however, whether the match was in fact found at the base of a "dump" pile from the main excavation in this room, in which case the two layers may be distinct (D. Rasmussen, pers. comm., 2001).

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