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Why Fly?
- -Larger Disance, shorter time.
- -Migration
- -Discover new areas inaccesable to land
- -Escape predators
- -Swoop down and get prey. (Great eye sight)
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Which animals could fly ?
- -Insects
- -Flying fish !! (200m) (Wings)
- -Indonesian flying frogs (Webbed feet)
- -Lizards + Gecko's , (Ribs extend , Membrane)
- -Flying snakes ! (Body's flatten out)
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Bats are from how long ago?
60million years ago
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Bats are what type of animal?
Mammel
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How many fingers do bats have?
4 elongated fingers
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Flying reptiles have how many fingers?
One, elongated finger.
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Birds, since when?
Late jurrassic
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Early bird fossils come from what type of rock?
Solnhofen Limestone
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Archeopterix , first mammel bird
Beak + Teeth ! Unusual!
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Pterosaurs are from when?
Late cretaceous.
Have beak + Teeth, unusual!
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What do flyers have in common?
- -Wings
- -Hollow light bones for body weight reduction
- -Fused joints for reduced mobility for controlled movement
-Warm-Blooded, so always high levels of energy.
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Why do birds have poor fosilization history?
Hollow bones
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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.
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Solfhofen Limstone
Used for lithographing.
Split easy and have alot of fossils
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Why's a lagoon ideal for fossilization?
- -HyperSaline
- -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
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What is a pterosaur?
- Winged Lizard
- -Late Cretaceous
- -Survived 140million years ago
- -NOT dinosaurs. They're Winged Reptiles.
- -Worldwide distribution.
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Pterosaurs Ancestors?
Missing Link. Pterosaurs ancestors are missing.
What did they evolve from?
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Scheleromochius?
Jumping rat, supposedly pterosaurs ancestor maybe?
Can't fly. Jumps around and shit.
No wings. Hops.
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Ramphoryhnchoidia is what type of dino?
Primitive,
Teeth, Tail,
Smaller.
Type of Pterosaur
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The more advanced type of Pterosaurs?
Pterodactloidya
- -More advanced
- -Longer skulls / necks
- -Fused backbones / Should region
- -Strong flyers
- -Long wrist bones
- -Shorter/Tiny tail.
- -5Th toe.
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Features of Pterosaurs ?
- Leathery bat-like wing
- One elongated finger
- 3 More short fingers for grasping prey, with claws.
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Pterosaur's largest found wingspan?
12M
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Head characteristics of Pterosaurs?
- Large openings in head beetween nostril and eye.
- Sharp bill. Some with teeth some without.
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The skull of the Pterodactaloid is ?
Large and Complex !
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The skull of the Ramphotoid is ?
Small, no ornamintation
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What did Pterosaurs eat?
Insects + Fish
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Some Pterosaurs feet were?
Webbed
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Ptarosaurs, Bipedal or Quadropedal?
Good question yo !
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Pterosaurs , Active flyers or saurers?
Larger ones saured, glided...
Smaller ones, flapped and shitt.
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Arboreal Hypothysis
Tree Climbers maybe ?
But claws found only on hands :(
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Cursorial Hypothysis:
Long legs, running on the ground trying to acheive lift.
Like an albatross :)
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Pteranodon
- Long bony head crest
- Light bird
- 7M Wingspan
- No teeth, Long beek !
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Lifestyle in Triassic;
Dry
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Lifestyle in Cretaceos;
Lush
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How many species of Pterosaurs?
90+
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20% alone of Pterosaur species found where?
Solnhofen Germany
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Early type of Pterosaur
- Tail with ball at the end
- Beak with the teeth
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Birds and Dinosaurs comparison , goes back to whom?
Thomas Huxley.
Listed 35 common factors beetween dinosaurs + birds.
17 Characters are still valid.
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Ornithodira group is what?
- A group created by Gauthier, including;
- -Dinosaurs
- -Pterosaurs
- -Birds
- 4 Toes, 3 point forward, 1 Thumb-like.
- All toes have a claw
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Pedopenna is what?
Only other feathered fossil from the Jurassic besides the Archeopterix
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Archeopterx is what blooded?
- Cold blooded!
- Feathers make no sense when an animal needs thermal conditioning!
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Sinosauropterix is special because it's the ?
First feathered dinosaur, found in 1996
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What's caudipterix like?
Turkey size fast running feathered dinosaur, Bipedal !
Basically a turkey.
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Microraptor is what?
tree dweller with gliding ability
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