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Keeled

Keeled

(Science: botany) Of leaves or bracts, folded and ridged along the midrib.


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The Cape Verde Giant Skink: Macroscincus coctei

... would not be as functional since at night depth perception decreases and shadows fade. Bartelia also mentions the dorsal scales are small and keeled in 100+ rows at the midsection. The osteodermal covering is mentioned as being less developed than in other skinks. Andreone/Gavetti describe ...

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by Brian - LCRC
Sat Aug 26, 2006 1:18 pm
 
Forum: Evolution
Topic: The Cape Verde Giant Skink: Macroscincus coctei
Replies: 0
Views: 10029

Macroscinus coctei

... would not be as functional since at night depth perception decreases and shadows fade. Bartelia also mentions the dorsal scales are small and keeled in 100+ rows at the midsection. The osteodermal covering is mentioned as being less developed than in other skinks. Andreone/Gavetti describe ...

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by Brian - LCRC
Fri Aug 25, 2006 8:25 pm
 
Forum: Genetics
Topic: Macroscinus coctei
Replies: 0
Views: 4114

Dinosaur Confusion

... interesting, and certainly a more likely candidate for the ancestor of birds than Archaeopteryx . Of course it still might not be. Did it have a keeled breatbone? Can you provide a website?

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by alextemplet
Thu Mar 09, 2006 11:25 am
 
Forum: Evolution
Topic: Dinosaur Confusion
Replies: 32
Views: 23309

Dinosaur Confusion

You're right. If it didn't have a keeled breastbone, it couldn't have large enough breast muscles to fly, although I think it could've glided. Don't forget that it also had teeth, a feature lacking in every modern bird. All of this makes it ...

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by alextemplet
Fri Mar 03, 2006 10:34 pm
 
Forum: Evolution
Topic: Dinosaur Confusion
Replies: 32
Views: 23309

Dinosaur Confusion

... (also insulation, protection of young, intimidation displays, etc). I don't think it flew. Perhaps it glided. A key characteristic of birds is the keeled breast-bone. Interestingly enough, pterodactyls independently evolved keeled breast-bones before they went extinct. The keeled breast bone is ...

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by AstusAleator
Fri Mar 03, 2006 8:09 pm
 
Forum: Evolution
Topic: Dinosaur Confusion
Replies: 32
Views: 23309
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