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Post by creature386 on Jun 21, 2013 19:41:11 GMT 5
theropodBut the moster of aramberri is too believed to reach 15 m, so it may be able to challenge the ichtyosaur.
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Post by theropod on Jun 21, 2013 19:50:17 GMT 5
It depends on whether it is really that large, which remains a mystery. I whished more work had been done on it and the Tubingen Liopleurodon used for comparison by Buchy. Yes, the femoral head according to her indicates a lenght of 16m (!), but others told me the rest wasn't that large (tough if I understood right a bit larger than P. funkei/kevani and Kronosaurus).
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Post by creature386 on Jun 21, 2013 19:57:08 GMT 5
The size of an ichthyosaur known from teeth is not more safe either.
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Post by Grey on Jun 21, 2013 21:19:47 GMT 5
theropodBut the moster of aramberri is too believed to reach 15 m, so it may be able to challenge the ichtyosaur. The Monster of Aramberri is smaller than the largest P. macromerus according to McHenry. |
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Post by coherentsheaf on Jun 21, 2013 22:38:42 GMT 5
That were not just teeth:
Additional evidence for this is provided by a massive
scapula (BMNH 48%) and a large isolated centrum (
R226), both from the Bower Liassic of Lyme Regis. The
scapula, which was said by Lydekker (1889~p.~ 1 0%)to be
associated with a series of vertebrae and ribs, is 44 mm
long, which is considerably larger than anything associated
with the skeletons discussed above. The largest skeleton of
iT burgundiae (SMNS 5006%0), for example, which has a
total length of 9.1 m (29.6 ft), has a scapula that is only
290 mn.a long, or 65 % that of BMNH 481. If the scapula of
this unknown ichthyosaur had been proportionally similar to
that of T. burgundiae, and if scapulae scaled isometrically
with body length, the animal in question would have been
about 14 m (45.6 ftt) long. The isolatcd centrum has a dorsoventral
height of 205 mm, compared with only 224 mm for
one of the largest centsa in SMNS 5WO0. Applying the same
simple proportionality yields an estimated body length of
about 15 m (49 R).
In discussing the large skeleton from Banz, Huene (1922,
p. 29, $1. 14, figs, 21 -23) refers to an even larger ichthyosaur,
represented by a series of vertebrae, ribs, and part of
a hindfin. The centra were said to reach a height of 22 cm,
which is marginally larger than the isolated centrum from
Lyme Wegis. Huene estimated a total body length of 15-
16 m, which seems reasonable, making this indeterminate
upper Liassic ichthyosaur of the same size order as the enigmatic
lower Liassic ichthyosaur from Lyme Wegis.
[...]
These three species of Ternnodontosaurus
shared the Early Jurassic seas with much larger
ichthyosaurs, but the only remains they have left behind are
a few isolated teeth and bony elements. The indications are
that these unknown ichthyosaurs may have reached lengths
of about l5 in (49 ft), equalling, if not surpassing, that of
Shonisuurus. This is about the size of many
cetes, and almost as large as the modern sperm whale. That
these giant ichthyosaurs had large teeth suggests they were
feeding on large prcy items, which may have included other
marine reptiles.
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Post by coherentsheaf on Jun 21, 2013 22:40:49 GMT 5
theropodBut the moster of aramberri is too believed to reach 15 m, so it may be able to challenge the ichtyosaur. I think 15m total length is very unlikely. This length was obtained by comparing the vertebrae of the Monster with a much smaller Liopleurodon. If you compare them with Kronosaurus you get a length about 12m. |
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Post by theropod on Jun 21, 2013 22:47:53 GMT 5
^That ichthyosaur sounds pretty convincing, some pretty huge things (and typing errors "lyme wegis"). Something with the given centrum heights seems to be wrong, it says "height of 205 mm, compared with only 224 mm". What's the issue here?
I wasn't even aware there were such gigantic Ichthysaurs in Lyme...
You seem to have access to the paper, could you send it to me?
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Post by creature386 on Jun 21, 2013 22:52:57 GMT 5
theropodBut the moster of aramberri is too believed to reach 15 m, so it may be able to challenge the ichtyosaur. I think 15m total length is very unlikely. This length was obtained by comparing the vertebrae of the Monster with a much smaller Liopleurodon. If you compare them with Kronosaurus you get a length about 12m. I thought this was based on comparing the skull. |
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Post by theropod on Jun 21, 2013 23:03:10 GMT 5
It was based on the femoral head (450mm as compared to 140mm in the Tubingen Liopleurodon, Noé, 2001) "and other remains". sadly the skull seems to be not so well described...
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Post by coherentsheaf on Jun 22, 2013 3:14:08 GMT 5
^That ichthyosaur sounds pretty convincing, some pretty huge things (and typing errors "lyme wegis"). Something with the given centrum heights seems to be wrong, it says "height of 205 mm, compared with only 224 mm". What's the issue here? I wasn't even aware there were such gigantic Ichthysaurs in Lyme... You seem to have access to the paper, could you send it to me? sry my pdf version is strange therefore the typing errors whit strg+c. Where should I send it? |
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Post by theropod on Jun 22, 2013 3:20:13 GMT 5
dariusnau@gmx.at Thanks in advance! Hehehe another paper to add to my collection HaHAHAHAHA  |
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Post by Deleted on Jun 22, 2013 13:22:36 GMT 5
Likely an undiscovered species, but among the known animals, Pliosaurus macromerus...
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Post by theropod on Jun 22, 2013 13:45:04 GMT 5
That ichthyosaur is really damn huge, a shame it isn't more well known.
The largest specimen going by the vertebral heights is 16m long, and two others are in excess of 14m.
If you scale isometrically from T. platyodon, it gets a 3,5m long skull at maximum, scaling the same way from T. burgundiae it still reaches 2,7m (rostroquadratal lenght).
The largest T. platyodon may have been ~11m with a 2,5m skull. I think those are hard competition (at least) for the largest pliosaurs, and they seem to exceed them somewhat in size.
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Post by Grey on Jun 22, 2013 13:46:32 GMT 5
How large are these teeth ? Can you send me the paper too please ?
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Post by Grey on Jun 22, 2013 13:51:34 GMT 5
Likely an undiscovered species, but among the known animals, Pliosaurus macromerus... We of course talk about animals known of all time or we enter into the realm of baseless speculation ! |
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