Not true, It is not a "Comet Theory," it is a well documented geologic event. The catastrophic impact did have catastrophic impacts on the oceans as well as on land. It is all the large animals and many plants that perished in the land and seas. Nonetheless smaller more adaptable species indeed did survive. Some larger species even one pine tree found in Australia survive the extinction event.
Botanist James Wong joins Forestry England at Bedgebury National Pinetum and Forest in Kent today to help plant six critically endangered Wollemi Pine trees - the first global 'metacollection' to save the iconic species from extinction.
www.bgci.org
Wollemi pines have been dubbed the ‘dinosaur tree’ because fossil records show they were living 200 million years ago alongside the dinosaurs. It was thought they had become extinct between 70 and 90 million years ago until a chance discovery in 1994, when a small group of living trees was found by an Australian explorer and botanist, David Noble, growing in a remote gorge in the Wollemi National Park in New South Wales. This moment is considered one of the greatest botanical discoveries of our time. The tree species is now classified as critically endangered on the IUCN’s red list, an important indicator of the world’s biodiversity which sets out the risks of extinction for plant and animal species.
Since its discovery, there has been a concerted effort to insure the species against the loss of the remaining wild trees, with fewer than 100 left growing in a gorge 150 kilometres from Sydney. These wild trees are increasingly vulnerable to threats from diseases and wildfires and narrowly escaped being destroyed by wildfires in 2019-2020 which burnt more than 10 million hectares of land in eastern Australia.
Actually, dinosaurs and other large animals did survive longer in the Antarctic region, but eventually did become extinct to the eventual world wide environmental change.
Firs, this has been addressed a number of times in the past. You fundamentally reject the sciences of evolution and abiogenesis, therefore your repeated questions are not meaningful. Repeating the current scientific research and knowledge over and over and over again is not productive of those that are intentionally ignorant of science based on an ancient religious agenda.