TF: Pan Pan Jiang
THE O RIGIN OF THESPECIES:C HAPTER 9(O N THE IMPERFECTION OF THE G EOLOGICAL RECORD )
In thischapter Darwin anticipatesandattempts toexplaintheproblems thatthegeological recordpresents
for his model of descent withmodification. What arethese “major problems”withthe fossil record?
The major problems with the fossil record are apparent gaps, sudden appearance, and lack of
intermediate forms in the fossil record.
What arguments doesDarwinmaketoexplainthese“majorproblems”?
Darwin argues that fossilization is a complicated process, and results in the impression of gaps and
abrupt appearance, because re