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Author Topic:   Happy Darwin Day
RAZD
Member (Idle past 1432 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 10 of 16 (498703)
02-12-2009 9:40 PM


Transitionals
PHOTOS: 7 Major "Missing Links" Since Darwin
Tiktaalik
Archeopteryx
Amphistium: The Halfway Flatfish
Ambulocetus
Homo Ergaster
Hyracotherium/Eohippus
Thrinaxodon: The Emerging Mammal
I would have added Odontochelys semitestacea: The Turtle on the Half-SHell
and Onychonycteris finneyi: the flappy bat

Earliest bat fossil reveals transition to flight
:
quote:
A spectacular bat fossil from Wyoming has everything one could want in want from a transitional sample: nearly every feature is intermediate between typical mammals and modern bats.
The relatively short wings and long hindlimbs place Onychonycteris outside of all previous bat species in terms of the ratio between its limbs. In fact, a plot of this ratio puts the fossil species neatly between bats and long-armed creatures like sloths”exactly what would be expected from a species at the base of the bat lineage. The authors argue that the configuration of its limbs, combined with the claws, suggests that it would be powerful climber, able to easily scramble around trees when not flying.
I'm sure we can add more (Pakecetus, etc)
Enjoy.

we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
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