Posted on 02/05/2018 7:32:24 AM PST by fishtank
Dinosaur and Mammal Tracks Found Together
February 1, 2018 | David F. Coppedge
In what is being called the mother lode of Cretaceous tracks, mammals, dinosaurs and pterosaurs left their prints in a table-sized rock.
Of all places: at Goddard Space Flight Center in Maryland, a property representing the cutting edge of human technology, dinosaurs left their mark. Ray Stanford was dropping off his wife at work when he noticed an unusual rock outcrop. As an amateur paleontologist, he looked and saw a dinosaur track, so he began digging. Soon he had an 8′ x 3′ slab of rock that was covered with tracks of all kinds, one of the most densely-concentrated trackways in the world. Tracks of stegosaur and nodosaur were found, but that’s not all, Laura Geggel reports for Live Science:
Of the 70 prints, at least 26 belong to squirrel- and raccoon-size mammals, the researchers said. This finding is remarkable, they added, given that it’s incredibly rare to find fossilized trackways belonging to dinosaur-age mammals. Until now, there were only four scientifically named mammal trackways from the Mesozoic: one from the Jurassic period and three from the Cretaceous. (Just like with new species, researchers can give scientific names to animal trackways.)
(Excerpt) Read more at crev.info ...
Well, the Cretaceous was 65 MILLION years ago. Are you saying Noah’s flood happened then?
Whu....????
Who let the dogs out?
Amazing group of foot prints.
It was just a turns species GODZILLA.
Yeah, the monster was chasing the poor little mammals.
The big bad woof?
Godzilla Toe Dirt? Yuck
;o]
Oh, no, there goes Tokyo. My woman was from Tokyo. See was so good to me.
Actually, protomammals preceded the rise of the dinosaurs. Known as Therapsids they existed in large numbers and varieties but their numbers were reduced by the Permian-Triassic great extinction event. In the Triassic the dinosaur family began to expand in size and variety. More Therapsids were killed off by the Triassic-Jurassic extinction event. Then the dinosaurs got really big, and mammals continued to evolved but hid from the big dinosaurs, getting their big chance when the end Cretaceous event killed off the dinosaurs. Without the competition, mammals then grew bigger than elephants, small like shrews, and everything in between. Canine mammals did not evolve or transition from dinosaurs. Mammals and dinosaurs both evolved in separate branches from the therapsid line. Mammals were only able to dominate after the dinosaurs were gone.
https://en.wikipedia.org/wiki/Therapsid [Evolutionary history of the Therapsid line]
https://www.pinterest.com/mason3452/therapsids/ [Great images of the Therapsid line, many with blog links.]
https://www.thoughtco.com/therapsid-mammal-like-reptile-4043336 [Detailed profiles of various Therapsids.]
Uhhh, everybody KNOWS mammals evolved in the Mesozoic period. No surprise here, aside from being rare. Know where you are going with this but it’s nowhere.
Uhhh, everybody KNOWS mammals evolved in the Mesozoic period. No surprise here, aside from being rare. Know where you are going with this but it’s nowhere.
Yes - those big sailfin “reptiles” (Dimetrodon etc) from the late Paleozoic are actually proto-mammals, not proto-Dinosaurs. As I recall, the first fossil mammals slightly pre-date the first fossil dinosaurs.
Except that definition doesn’t include repeatable experiments to prove/dispove the theory.
Following that reasoning, we should never convict any criminals in the absence of reliable eye witnesses. Yet we do so all the time, and it's usually quite accurate. So it is when it comes to inferences of historical events.
When a jury convicts on DNA evidence, is it solely because of the science, or that the jury believes the person who administered the DNA test did it accurately?
See post 24.
So far as I know the proto-mammals were earlier than the dinosaurs. The major survivor of the great Permian extinction was Lystrosaurus. Apparently, one key to their survival was the habit of burrowing underground at bed time. Probably protected them from other predators as well as atmospheric flame and ash. Also sleeping underground their lungs would have been protected while sleeping from contaminated atmosphere by filtering itthrough the earth. The link below has several comments and recommendations for other authors writing on the subject of survival.
Thanks gleeaikin. I think the Lystrosaurus also helped end the Peloponnesian War.
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