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Author Topic:   Fossil sorting for simple
Lunkhead
Member (Idle past 7365 days)
Posts: 15
From: The Great Northwest, USA
Joined: 02-10-2004


Message 188 of 308 (85770)
02-12-2004 11:59 AM


Actual Examples of Sorting?
Ignorant question from an "armchair archaeologist":
Are there any single rock outcrops or locations where animals of more than one era are found in succession? In other words, is there any one place where you find Mesozoic animals, then higher up in the same outcrop you find Cenozoic animals?
Just wondering.
Thanks
Chris

Replies to this message:
 Message 189 by Bill Birkeland, posted 02-12-2004 1:31 PM Lunkhead has not replied
 Message 190 by roxrkool, posted 02-12-2004 1:32 PM Lunkhead has not replied
 Message 191 by NosyNed, posted 02-12-2004 1:37 PM Lunkhead has replied

Lunkhead
Member (Idle past 7365 days)
Posts: 15
From: The Great Northwest, USA
Joined: 02-10-2004


Message 195 of 308 (85831)
02-12-2004 2:55 PM
Reply to: Message 191 by NosyNed
02-12-2004 1:37 PM


Re: Actual Examples of Sorting?
NosyNed,
Thanks for the info. However, you say above and below the K/T layer are microfossils from after and before the "time" of dinosaurs. This is an assumption. From an objective point of view, I would like examples of actual identifiable animal fossils from different eras in the same set of strata.
Is there such a thing?
Thanks
Lunkhead

This message is a reply to:
 Message 191 by NosyNed, posted 02-12-2004 1:37 PM NosyNed has replied

Replies to this message:
 Message 198 by NosyNed, posted 02-12-2004 5:09 PM Lunkhead has replied

Lunkhead
Member (Idle past 7365 days)
Posts: 15
From: The Great Northwest, USA
Joined: 02-10-2004


Message 199 of 308 (86016)
02-13-2004 9:05 AM
Reply to: Message 198 by NosyNed
02-12-2004 5:09 PM


Re: Microfossils are fossils?
Thanks, interesting article on Hell Creek. I didn't realize it's the only stratum formation to cross the K/T boundary. Isn't the iridium layer found many places worldwide, or am I misunderstanding the statement?
At Hell Creek do they also find other post-Cretacious animals in the layers above the dinosaurs? That's what I'm looking for is concrete evidence of evolution in the geologic column. I'm on the boundary myself, as far as which side of the EVC fence to stand on. Just trying to figure it out.
As far as microfossils, do they differ enough to know they are from completely different eras?
Thanks
Lunkhead

This message is a reply to:
 Message 198 by NosyNed, posted 02-12-2004 5:09 PM NosyNed has replied

Replies to this message:
 Message 200 by NosyNed, posted 02-13-2004 10:47 AM Lunkhead has replied

Lunkhead
Member (Idle past 7365 days)
Posts: 15
From: The Great Northwest, USA
Joined: 02-10-2004


Message 201 of 308 (86086)
02-13-2004 12:12 PM
Reply to: Message 200 by NosyNed
02-13-2004 10:47 AM


Geologic column for real?
What it all comes down for me is this:
Is there any strata location where there is direct evidence of evolution in the geologic column, or is it only inferred by the presumed or radiometrically dated age of corresponding strata around the world? Is it possible that different species are not found vertically evolved in the strata, but rather their habitats are merely regional, and do not correspond to any particular strata?
Example: Why is it that Protoceratops is found on the surface, while "earlier" dinosaurs are found deep in sediment layers? Are they really separated by geologic time, or just by region?
Make sense?
Lunkhead

This message is a reply to:
 Message 200 by NosyNed, posted 02-13-2004 10:47 AM NosyNed has replied

Replies to this message:
 Message 202 by NosyNed, posted 02-13-2004 1:36 PM Lunkhead has not replied
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 Message 204 by NosyNed, posted 02-14-2004 1:27 AM Lunkhead has not replied
 Message 206 by Bill Birkeland, posted 02-14-2004 11:38 PM Lunkhead has not replied

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