66- The KT Extinction

It's episode 66, so I thought I'd cover a big event from 66 million years ago- the death of the dinosaurs! But it's not all doom and gloom- we will also take a look at how to prevent asteroid impacts in future.

Sources for this episode:

• Bottke, W. F., Vokrouhlický, D. and Nesvorný, D. (2007), An asteroid breakup 160 Mya as the probable sources of the K/T impactor. Nature 449: 48-53.
• Brusatte, S. (2018), The Rise and Fall of the Dinosaurs: The Untold Story of a Lost World. London: Picador.
• Chapman, C. R. (2004), The hazard of near-Earth asteroid impacts on earth. Earth and Planetary Science Letters 222: 1-15.
• Chapman, C. R. and Morrison, D. (1994), Impacts on the Earth by asteroids and comets: assessing the hazard. Nature 367: 33-40.
• Cohen, K. M., Finney, S. C., Gibbard, P. L. and Fan, J.-X. (2013, updated), The ICS International Chronostratigraphy Chart. Episodes 36: 199-204.
• Dodson, P. (1990), Counting dinosaurs: how many kinds were there? Proceedings of the National Academy of Sciences of the United States of America 87(19): 7608- 7612.
• The Editors, Encyclopedia Britannica (2023), sublimation (online) [Accessed 29/07/2023].
• Ostrom, J. H. and Padian, K., Encyclopedia Britannica (2023), dinosaur (online) [Accessed 14/07/2023].
• Pope, K. O., Baines, K. H., Ocampo, A. C. and Ivanov, B. A. (1994), Impact winter and the Cretaceous/Tertiary extinctions: Results of a Chicxulub asteroid impact model. Earth and Planetary Science Letters 128: 719- 725.
• Schulte, P., Alegret, L., Arenillas, I., Arz, J. A., Barton, P. J., Brown, P. R., Barlower, T. J., Christeson, G. L., Claeys, P., Cockell, C. S., Collins, G. S., Deutsch, A., Goldin, T. J., Goto, K., Grajales Nishmura, J. M., Grieve, R. A. F., Gulick. S. P. S., Johnson, K. R., Kiessling, W., Koeberl, C., Kring, D. A., MacLeod, K. G., Matsui, T., Melosh, J., Montanari, A., Morgan, J. V., Neal, C. R., Nichols, D. J., Norrison, R. D., Pierazzo, E., Ravizza, G., Rebolledo-Vieyra, M., Reimold, W. U., Robin, E., Salge, T., Speijer, R. P., Sweet, A. R., Urrutia-Fucugauchi, J., Vajida, V., Whalen, M. T. and Willumsen, P. S. (2010), The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Palaeogene Boundary. Science 327(5970): 1214- 1218.
• Starrfelt, J. and Liow, L. H. (2016), How many dinosaur species were there? Fossil bias and true richness estimated using a Poisson sampling model. Philosophical Transactions of the Royal Society B: Biological Sciences 371(1691): 20150219.
• Yousuf, I., Encyclopedia Britannica (2023), Empire State Building (online) [Accessed 27/07/2023].