animals
What Does 'Crown Group' Refer To In Archosaur Definition?
š” The Answer
- 'Crown group' refers to the most recent common ancestor of living birds and crocodilians.
- It includes all descendants of that ancestor.
- This definition is used by modern paleontologists for Archosauria.
- It contrasts with stem groups that exclude some modern lineages.
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On This Day ā October 313 events ā
1923 ā The first of 160 consecutive days of 100Ā° Fahrenheit at Marble Bar, Western Aust
1924 ā World Savings Day is announced in Milan, Italy by the Members of the Association
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