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Little Dinosaurs on an island are found

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Little Dinosaurs on an island are found
Little Dinosaurs that lived on an island have been found
Posted 11 May 2010, 8:59 PM
#115 (In Topic #58)
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reggie in the usergroup ‘Digger’
I read a story the other day about little dinosaurs that lived on an Island. They were just like the bigger dinosaurs but because they lived on an island they never grew bigger, they were little dinosaurs.

Does anybody know about them? How big were they?


Last edit: 11 May 2010, 9:05 PM by t-bone
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Posted 22 August 2010, 7:39 PM
#153
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kenneyboy82 in the usergroup ‘Dino-hunter’
yes!dureing the cretaceous/jurassic time periods many of the european countries we know today were islands as well as other locations in the world due to the various continental shifting,ISLANDS came and went trapping a number of DINOSAURIA species.this made for a limited food supply so the dinosaurs adapted by getting smaller.a species of mammoth/mastodon did the same on a small island chain on the coast-santabarbara,calif-KENNEYSILLS
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Posted 22 August 2010, 10:42 PM
#156
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t-bone in the usergroup ‘Administrators’

KennySills said

a species of mammoth/mastodon did the same on a small island chain on the coast-santabarbara,calif
Those mammoths on the northern Channel Islands off of the California coast were called pygmy mammoths. Smaller than the normal Columbian mammoth but still large to me. Those four northern Channel Islands used to be connected together like a single island when the sea level was lower. We call that single prehistoric island Santarosae.

A description of the pygmy mammoth from the National Parks Website says:

"Found only on the California Channel Islands and nowhere else in the world, the pygmy mammoth was probably a small form of the Columbian mammoth found on the mainland. Pygmy mammoths varied from 4.5 to 7 feet high at the shoulders and may have weighed only about 2,000 pounds, compared to the 14-foot tall, 20,000 pound Columbian mammoth. In other respects, they were probably similar, with short fur, a typical mammoth body form, and a relatively large head." http://www.nps.gov/chis/historyculture/pygmymammoth.htm

There was another occurrence of dwarf mammoths, much further away from California, on Wrangel Island in Russia.
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Posted 26 August 2010, 8:37 AM
#168
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kenneyboy82 in the usergroup ‘Dino-hunter’
thanx T-BONE!!you "took-me-to-school" on that one!
I still want to make sure  i
I am accurate about the pygmy/dwarf dinosaurs? can you run that one down for me as well?my stories are fiction but I allways want my research right…..
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Dwarf mammoths on Wrangle Island
Posted 27 August 2010, 3:29 PM
#169
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t-bone in the usergroup ‘Administrators’

Kennysills said

thanx T-BONE!!you "took-me-to-school" on that one!
Very amusing Kennysills!
I'll let Wikipedia "school us both" on the dwarf mammoths of Wrangle Island:

Wikipedia said

This remote Arctic Island is believed to be the final place on Earth to support Woolly Mammoths as an isolated population until their extinction 4000 years ago, making them the most recent surviving population known to science.[3][6] A specific variant of the species seems to have survived as a dwarf version of the species originating from Siberia. A combination of late climate change (warming) and the presence of modern humans using advanced hunting and survival skills probably hastened their demise on this frozen isle which until recently was ice bound for most years with infrequent breaks of clear water in some Arctic summers. A mirror development can be found with the Dwarf elephant on Malta, originating from the African species.

Evidence for prehistoric human occupation was uncovered in 1975 at the Chertov Ovrag site.[7] Various stone and ivory tools were found, including a toggling harpoon. Radiocarbon dating shows the human inhabitation roughly coeval with the last mammoths on the island circa 1700 BC, though no direct evidence of mammoth hunting has been found.
http://en.wikipedia.org/wiki/Wrangel_Island
There is indication from the article that the smaller size of the mammoths could have been from the limited food supply on the island.
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Posted 12 July 2011, 2:03 PM
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mesozoicrising in the usergroup ‘Digger’
iv heard of the dwarf dinos as well. look today, keep a goldfish in a 5 gallon tank, it wont grow bigger then the oxygen levels in the water can handle, put the same fish in a 20 gallon tank, itll grow again. same could apply to the dinosaurs, am i right? an island is cut off, due to water level rising, earthquake, etc. those animals breed but because the environment is limited, the animals biology may detect this and not grow any bigger then needed.
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Posted 09 September 2012, 10:49 PM
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DracorexHogwartsia in the usergroup ‘Digger’
Yeah, basically. The evolution of the creatures is influenced by their environment.
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