Could this number be an approximation based on incomplete fossil evidence?

Sep 3, 2012 ... ... dinosaur, using genetic engineering techniques on bird embryos. It would probably have teeth and feathers, but be relatively bird-sized. The ... They are amongst the oldest, fastest and largest of our insects and were flying even before the dinosaurs were around! They are not only beautiful, have ... Dec 15, 2018 ... One more additional piece of information regarding theropod teeth from Chablanc Quarry in France. Specimen CHEm03.537, a holotype tooth for ... Mar 28, 2023 ... ... Information files. Funding: S.R.M. was funded by the Queen Elizabeth II Graduate Scholarship, Dinosaur Research Institute, Alberta ... Sep 26, 2019 ... What are mass extinctions, and what causes them? In the last 500 million years, life has had to recover from five catastrophic blows. Are humans ... I could not imagine that her teeth would have turned out so great. She can ... 500 Physicians Lane Sumter, SC 29150 (803) 775-4793. Find Our Sumter ... Which dinosaur has 500 teeth? The Nigersaurus was a long-necked, plant-eating dinosaur that lived about 110 million years ago. It had a broad, straight ... Oct 7, 2021 ... The oldest species long predate the dinosaurs, with fossils at least 500 million years old. Modern nautiluses live in coral reefs of the ... The comb has 1.5 inch-long stainless steel teeth with precision spacing. Health Department personnel and parents who have used the comb know it is the most ... ... have been around for more than 400 million years—long before the dinosaurs. The ocean's top predators have evolved into roughly 500 species that come in all ...