These specimens show that poor fossil preservation, rather than mass extinction, was probably responsible for this gap in the fossil record.

这些化石标本显示，贫穷的保护，而不是大规模的灭绝，可能是这个化石记录的空白在负责。

youdao

These specimens show that poor fossil preservation, rather than mass extinction, was probably responsible for this gap in the fossil record.

这些化石标本显示，贫穷的保护，而不是大规模的灭绝，可能是这个化石记录的空白在负责。

youdao