LAB ACTIVITY 3 Flashcards
What is the title of the Lab Act 3?
Out of the Ahes: Dawn of the Age of Mammals
It is a place where many fossils from the first 1 million years after the asteroid impact
Corral Bluffs
Fossils of organisms found in Corral Bluffs
- Crocodile
- Turtle
Claims that used evidence from fossils younger than 66 million years old
- Plant diversity increased after the asteroid impact
- The body size of mammals were more diverse after the asteroid impact
It is the mass extinction after the asteroid impact (called)
K-Pg extinction event
Why were fungal spores abundant after the K–Pg extinction event?
Fungi decomposed dead plants and animals after the K-Pg extinction event
What plant type is often the first to return after natural disasters, such as volcanic eruptions and wildfires?
Ferns
What did legumes provide that was so significant to some early mammals?
A protein-rich food source for early mammals
Who discovered the fossil of the ancient North American legume at Corral Bluffs?
A teenage student on a field trip named Aeon Way-Smith
The four events that happened within the first 1 million years after the K–Pg mass extinction
- Increase in fungi
- Replacement by ferns
- Growth of palm forests
- Appearance of legumes
What development signifies the fossils found in Corral Bluffs about the evolution of mammals?
A relatively rapid increase in size and in diversity of mammals
Ecosystem of Corral Bluffs today
- looks like a dryland (dry and arid)
- limited vegetation
- only species resilient to drought conditions
Corral Bluffs in the past (probably)
- dominates by fan-leafed palm forests
- climate was subtropical
Two significant events occured over the time period
- the asteroid impact
- first appearance of legumes (690,000 years after the impact)
