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Thalattosaur: Fossil reptiles rare pr Historical find S military ...
The fossil of a rare, prehistoric marine reptile that is likely the most complete remnant of the creature ever found in North America has been discovered by.
Thalattosaur - Wikipedia, the free encyclopedia
Thalattosaurs (meaning "ocean lizards") are a group of prehistoric marine reptiles which lived during the mid-late Triassic Period. ...
Updated News » Blog Archive » Rare fossil of sea reptile found on ...
The nearly complete fossilized skeleton is of a Thalattosaur, a long-tailed sea creature that plied warm, shallow waters in the early days of dinosaurs and became extinct at the end of the Triassic period some 200 ...
Prehistoric Marine Reptile Fossil Found In Alaska – Irish Weather ...
Daily MailPrehistoric Marine Reptile Fossil Found In AlaskaIrish Weather OnlineAn extreme low tide near Kake in Southeast Alaska in May revealed the tail of a Thalattosaur fossil. Photo by Patrick Druckenmiller The ...
Thalattosaur: Rare fossil of prehistoric marine reptile found ...
The nearly-complete fossilised skeleton is of a Thalattosaur, a long-tailed sea creature that plied warm, shallow waters and became extinct 200million years ago.
Thalattosaur: Rare fossil of prehistoric marine reptile found ...
The nearly-complete fossilised skeleton is of a Thalattosaur, a long-tailed sea creature that plied warm, shallow waters and became extinct 200million years ago. Facebook · Twitter · StumbleUpon · Digg. comments: Closed ...
Chinleana: New Thalattosaur Specimen from the Late Triassic of Alaska
New Thalattosaur Specimen from the Late Triassic of Alaska. http://www.capitalcityweekly.com/stories/071311/new_856641234.shtml. Posted by Bill Parker at 12:00 PM. 0 comments: Post a Comment · Older Post Home ...
Thalattosaur - eNotes.com Reference
Thalattosaurs (meaning "ocean lizards") are a group of prehistoric marine reptiles which lived during the mid-late Triassic Period. ...
Thalattosaur: Rare fossil of prehistoric marine reptile found ...
Nearly-complete fossilised skeleton is of a ThalattosaurLong-tailed sea creature became extinct 200million years agoThere are only about a dozen full ...
what reproductive characteristic of all reptiles typically separates them from all amphibians?
1. what reproductive characteristic of all reptiles typically separates them from all amphibians?
2. Our new Thalattosaur is taxonomically a_________
3. Why is Longisquama so significant?
4. Why are birds thought by most to NOT be descended from the Ornithischian dinosaurs with a bird-like pelvis?
5. what 2 lines of evidence suggests some dinosaurs were warm blooded?__________&__________
please help!
Answer: 1. Reptiles have eggs with an amniotic membrane, which is not found in amphibian eggs. Reptile eggs also have a shell, again not found in amphibians.
2. they are extinct diapsid reptiles of uncertain affinity.
3. Longisquama is the only known reptile that has feathers. Because it is not a dinosaur, many cladists (who believe that birds descended from a dinosaur) steadfastly refuse to believe that it has feathers. The cladists instead claim that dinosaurs like Sinosauropteryx has "proto-feathers." That is a stretch because there is ample evidence that the "dino-fuzz" found in Sinosauropteryx skin is in fact collagen fibers, the same protein that is found in the skin of all vertebrates, including sharks. There is no scientific evidence of what a protofeather looks like. Therefore to claim that dinosaurs have proto-feathers is a leap of faith.
4. Ornithischian dinosaurs have a pelvis that is different than the bird pelvis. Ornithischians have a prepubic process, not found in birds. The pubic bone of birds has a "club-like termination" not found in ornithischian dinosaurs but found in saurischian dinosaurs.
http://www.talkorigins.org/faqs/archaeopteryx/info.html
5. Some paleontologists thought that dinosaurs were endothermic because their bones lack the growth rings of reptile bones, and because they believe that birds are descended from dinosaurs. Since birds are endothermic, they therefore argue that dinosaurs must have been endotherms. The problem with these lines of evidence is that ancient birds such as Archaeopteryx have growth rings in their bones, Endothermic dinosaurs would mean the ectothermic ancient birds evolved from an endotherm and then later re-evolved endothermy. Further, endotherms have respiratory turbinates in their noses to limit the loss of moisture to the air when they breathe. Ectotherms lack these turbinates because they breathe about 1/20 the amount of air endotherms do. Without the turbinates, an endotherm would lose an estimated 75% of their daily water intake, but an ecotherm would lose 1/20 x 75% or less than 5% of their water intake. A number of dinosaurs were examined but there is no evidence of respiratory turbinates. Therefore they were most likely not endotherms.
http://discovermagazine.com/1996/dec/acoldhardlookatd939
Category: Zoology
Fossil of prehistoric reptile found in Alaska | The Associated ...
Photos were sent to the museum's earth sciences curator, Patrick Druckenmiller, who quickly determined that it was the back end of a little-known sea-going reptile from the age of the dinosaurs called a Thalattosaur, ...
Thalattosaur: Rare fossil of prehistoric marine reptile found ...
5 hours ago ... The nearly-complete fossilised skeleton is of a Thalattosaur, a long-tailed sea creature that plied warm, shallow waters and became extinct ...
The First Record of a Thalattosaur Reptile from the Late Triassic ...
ABSTRACT-The first Thalattosaur from the marine Middle Triassic of Guizhou Province, ... Thalattosaurs are a monophyletic clade of Triassic marine ...
Thalattosauriformes | Facebook
Thalattosaurs (meaning "ocean lizards") are a group of prehistoric marine reptiles which lived during the mid-late Triassic Period. ...
Rare fossil of sea reptile found on Alaska beach - Stabroek News ...
The nearly complete fossilized skeleton is of a Thalattosaur, a long-tailed sea creature that plied warm, shallow waters in the early days of dinosaurs and became extinct at the end of the Triassic period some 200 ...
Thalattosauria - Palaeos.org
Jan 25, 2009 ... Some species of Thalattosaur grew to over 4 meters (13 feet) in length, including a long, flattened tail used in underwater propulsion. ...
New Thalattosaur Specimen from the Late Triassic o - Chinleana ...
ABSTRACT-The first Thalattosaur from the marine Middle Triassic of Guizhou Province, ... Thalattosaurs are a monophyletic clade of Triassic marine ...
zoology hw help please?
1. what reproductive characteristic of all reptiles typically separates them from all amphibians?
2. Our new Thalattosaur is taxonomically a_________
3. Why is Longisquama so significant?
4. Why are birds thought by most to NOT be descended from the Ornithischian dinosaurs with a bird-like pelvis?
5. what 2 lines of evidence suggests some dinosaurs were warm blooded?__________&__________
please help!
Category: Homework Help