why does it appear that, for most genera of dinosaur, there is only one described species?

Question

why does it appear that, for most genera of dinosaur, there is only one described species?

In: 5

Answer 1

often a lot of time speciation is mostly identifiable via phylogenic traits. considering the wear of time often minute physical difference will be lost in the fossils. I do believe there was one British scientist recently who looked closely at a lot of T-Rex statues in museums and tried to propose they were in fact three different sub species. it was met with mixed reviews.