Preservation frequency of tissue-like structures in vertebrate remains from the upper Campanian of Alberta: Dinosaur Park Formation

In recent years, several papers have claimed that soft tissue can preserve within bone matrix of extinct vertebrates, some dating back over 100 million years. Work conducted on specimens from Montana suggested sediment type may influence preservation of original tissues and proteins. An alternative hypothesis is that soft tissue preservation may be linked to the time that a specimen is exposed to the environment prior to burial. The time of...