K-Pg Boundary Layer - Death of the Dinosaurs - Display Card rockinaboxlabrea ROUGH OPAL (Australia)

ROUGH OPAL (Australia)

they are all oval in shape

and Ammonite Shell fossil specimens are each packaged in a cushioned black box

It is known from two species Nematonotus bottae and Nematonotus longispinus of which the latter’s fin is more prominent

This specimen is an 11

K-Pg Boundary Layer - Death of the Dinosaurs - Display Card rockinaboxlabrea ROUGH OPAL (Australia)By the end of the Mesozoic, dinosaurs had ruled the Earth for 175 million years, evolving into innumerable forms across the years. All that ended with a six mile long asteroid that wiped out all non avian dinosaurs in one fell swoop. Evidence of this impact can be found in a globally distributed strip of iridium, an element brought to Earth by the asteroid. This specimen is a collection of material from this K Pg Boundary geologic layer, a relic from