Card Set Information
Pterosaurs lecture for the Dinosaurs class.
-Larger Disance, shorter time.
-Discover new areas inaccesable to land
-Swoop down and get prey. (Great eye sight)
Which animals could fly ?
-Flying fish !! (200m) (Wings)
-Indonesian flying frogs (Webbed feet)
-Lizards + Gecko's , (Ribs extend , Membrane)
-Flying snakes ! (Body's flatten out)
Bats are from how long ago?
60million years ago
Bats are what type of animal?
How many fingers do bats have?
4 elongated fingers
Flying reptiles have how many fingers?
One, elongated finger.
Birds, since when?
Early bird fossils come from what type of rock?
Archeopterix , first mammel bird
Beak + Teeth ! Unusual!
Pterosaurs are from when?
Have beak + Teeth, unusual!
What do flyers have in common?
-Hollow light bones for body weight reduction
-Fused joints for reduced mobility for controlled movement
-Warm-Blooded, so always high levels of energy.
Why do birds have poor fosilization history?
Solnhofen - Germany
140 Mil Years ago, Central europe was under water.
Tethian Sea, across central europe.
-Solfhofen Limestone used by romans as building blocks. Used for Lithographing.
Used for lithographing.
Split easy and have alot of fossils
Why's a lagoon ideal for fossilization?
-Carcass's fall in and settle down to the sea floor
-Lack of scavengers destroying carcass's
-Cover of very fine sediment
-Forming sedimentary rock
What is a pterosaur?
-Survived 140million years ago
-NOT dinosaurs. They're Winged Reptiles.
Missing Link. Pterosaurs ancestors are missing.
What did they evolve from?
Jumping rat, supposedly pterosaurs ancestor maybe?
Can't fly. Jumps around and shit.
No wings. Hops.
Ramphoryhnchoidia is what type of dino?
Type of Pterosaur
The more advanced type of Pterosaurs?
-Longer skulls / necks
-Fused backbones / Should region
-Long wrist bones
Features of Pterosaurs ?
Leathery bat-like wing
One elongated finger
3 More short fingers for grasping prey, with claws.
Pterosaur's largest found wingspan?
Head characteristics of Pterosaurs?
Large openings in head beetween nostril and eye.
Sharp bill. Some with teeth some without.
The skull of the Pterodactaloid is ?
Large and Complex !
The skull of the Ramphotoid is ?
Small, no ornamintation
What did Pterosaurs eat?
Insects + Fish
Some Pterosaurs feet were?
Ptarosaurs, Bipedal or Quadropedal?
Good question yo !
Pterosaurs , Active flyers or saurers?
Larger ones saured, glided...
Smaller ones, flapped and shitt.
Tree Climbers maybe ?
But claws found only on hands :(
Long legs, running on the ground trying to acheive lift.
Like an albatross :)
Long bony head crest
No teeth, Long beek !
Lifestyle in Triassic;
Lifestyle in Cretaceos;
How many species of Pterosaurs?
20% alone of Pterosaur species found where?
Early type of Pterosaur
Tail with ball at the end
Beak with the teeth
Birds and Dinosaurs comparison , goes back to whom?
Listed 35 common factors beetween dinosaurs + birds.
17 Characters are still valid.
Ornithodira group is what?
A group created by Gauthier, including;
4 Toes, 3 point forward, 1 Thumb-like.
All toes have a claw
Pedopenna is what?
Only other feathered fossil from the Jurassic besides the Archeopterix
Archeopterx is what blooded?
Feathers make no sense when an animal needs thermal conditioning!
Sinosauropterix is special because it's the ?
First feathered dinosaur, found in 1996
What's caudipterix like?
Turkey size fast running feathered dinosaur, Bipedal !
Basically a turkey.
Microraptor is what?
tree dweller with gliding ability