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Post by elosha11 on Mar 12, 2013 23:03:00 GMT 5
Not sure if this is Meg or a smaller lamnid predation or scavenging sharks. This bone has been called the butcher's block for obvious reasons.
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Post by elosha11 on Mar 12, 2013 23:04:15 GMT 5
Note the serrations on the second image. Probably Mega-toothed feeding
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Post by elosha11 on Mar 12, 2013 23:09:39 GMT 5
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Post by elosha11 on Mar 12, 2013 23:27:11 GMT 5
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Post by elosha11 on Mar 12, 2013 23:32:28 GMT 5
Also from the fossil forum, with the following description: Small whale vertebra with severe pathologic growth (arthritic?). It was found (dug out) with the small meg touching it. The serrations were mostly ripped off one side of the meg and the meg fits perfectly into a cut on the bone.
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Post by elosha11 on Mar 12, 2013 23:47:06 GMT 5
From fossilsonline: Amazing Megalodon Bitten Whale Vertebra Absolutely amazing gashes on opposing sides of this tail vertebra. Solidly preserved and detailed. The spongy center is too porous to preserve the detail of any serrations, but the deepest gash is abut 3/4" deep. This is by far, the best bitten specimen I have had.
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Post by elosha11 on Mar 12, 2013 23:55:47 GMT 5
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Post by creature386 on Mar 14, 2013 0:31:01 GMT 5
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Post by elosha11 on Mar 14, 2013 6:35:12 GMT 5
The sperm whale vertebral centra on the first page are very large, that was almost certainly a very large whale. The three centra grouped together are also quite large. It's difficult to say how big they are, but judging by the size of the centra, the sperm whale was probably at least as large as bull sperm whales today.
There's no way to tell from things like ribs how large the particular whale was, or even usually what kind it was.
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Post by creature386 on Mar 14, 2013 21:16:16 GMT 5
Does anyone have a good picture of the Mosasaur vs Shark encounter (the bitten bone)? I found this on carnivora: What can we learn from shark injuries on mosasaurs? The survived injuries described here are from sharks between two and three metres in length. Attacks from larger sharks (if any) were probably fatal, e.g. in FHSM VP-13283, figured by Shimada (1997, fig. 4), that includes five vertebrae severed from the middle of the back of a 7-metre mosasaur. (Rothschild et al., 2005) Posted by Life in July.
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Post by Grey on Mar 14, 2013 22:45:22 GMT 5
Purdy reported the bones to come from "large baleanopterids". But it's indeed difficult to have an absolute idea of the size of the animal. In Prehistoric Predators, they reported not very precisely an attack on a grey whale-sized animal.
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Post by creature386 on Mar 15, 2013 0:28:01 GMT 5
In Prehistoric Predators, they reported not very precisely an attack on a grey whale-sized animal. When I have time, I need to watch this.
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Post by elosha11 on Mar 21, 2013 21:44:33 GMT 5
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Post by Grey on Mar 22, 2013 5:32:00 GMT 5
In Prehistoric Predators, they reported not very precisely an attack on a grey whale-sized animal. When I have time, I need to watch this. This is frankly a quality doc, I advise you to watch it in English, I've remarked that in my mother-tongue some Tv docs are poorly dubbed. A terrible example was Bretton Kent talking about a fossil tooth belonging to a 13-foot shark, translated into a 30 meters shark in French !
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Post by creature386 on Mar 22, 2013 12:33:41 GMT 5
I mostly watch documentaries on YT in english. I also have bad memories with the dubbed versions.
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