Vitamin D bonked the Dinasaurs
Organisms....prolific number of fungi and yeast,ergosterol ( pro-vitamin D-2 ) the end sterol of their sterol metabolism.
Carnivores eat Herbivores.
Ozone layer is wiped out or drastically
altered.
You people out there have to add the other pieces of the puzzle, ie:atmosphere, climate, meteors, theory of Vitamin D, whales, earth changes...a whole slew of things that might break out with an answer to this very ancient brain teaser.
Note:Over irradiation of pro-vitamins d
and knowledge of hypercalcaemia.
regards,