There have been some discoveries of unusually well-preserved fossil dinosaur specimens which bear remnants of tissues and bodily structures. Organic tissue was previously thought to decay too quickly to enter the fossil record, unlike more mineralised bones and teeth, however, research now suggests the potential for the long-term preservation of original soft tissues over geological time, leading to the formulation of various hypotheses regarding the underlying mechanisms involved.
Ornithischians
Basal ornithischians
Ornithopods
Ceratopsians
Thyreophorans
Theropods
Basal theropods
Avialans
Non-avialan maniraptoriformes
"Compsognathids"
Tyrannosauroids
Carnosaurs
Ceratosaurs
Sauropodomorphs
Diplodocids
Macronarians
See also
Sources
- Chiappe, Luis M.; Meng, Qingjin (2016). Birds of Stone: Chinese Avian Fossils from the Age of Dinosaurs. Baltimore: Johns Hopkins University Press. .
- Sanders, F.; Manley, K.; Carpenter, K. (2001). "Gastroliths from the Lower Cretaceous sauropod Cedarosaurus weiskopfae". In Tanke, Darren; Carpenter, Ken (eds.). Mesozoic Vertebrate Life: New Research Inspired by the Paleontology of Philip J. Currie. Indiana University Press. pp. 166âÂÂ180.
References