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Hello all!
I have been trying to get a comprehensive understanding of how
the different biogeographic realms were separated in the Mesozoic, and I have a
couple of questions that someone out there can hopefully answer. Please
note, however, that when I ask whether two areas were united, I mean united
biogeographically, not simply geographically. (For example, today, the
Nearctic Realm [North America] is geographically connected to the Neotropical
Realm [South America], but they are separate biogeographic realms.) Okay,
here we go:
In the Early Cretaceous, were South America and Africa the
same biogeographic realm, or two separate ones?
In the Middle Jurassic, was Europe part of the same realm as
Central Asia, part of the same realm as Neopangaea [NA + SA + Africa + Australia
+ Antarctica], or its own individual realm?
Finally, what was the scoop in the Early Jurassic? I
don't understand it at all, especially what Madagascar was part of.
Thanks in advance, everybody!
-Grant
--
Grant Harding High school student/amateur paleontologist granth@cyberus.ca Visit Grant Harding's Dinosaur Destination at http://www.cyberus.ca/~sharding/grant/ "Uh oh, Zoot skipped a groove again!" - Floyd Pepper |