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NTamura β€” Castorocauda by-nc-nd

Published: 2008-04-16 05:07:02 +0000 UTC; Views: 4428; Favourites: 64; Downloads: 0
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Description Castorocauda lutrasimilis was a semi-aquatic early Mammal that lived during the Middle Jurassic of China. It measured about 40 cm. Its tail was broad and flattened like a modern day beaver and his forearms show adaptation for digging similar to a platypus. Dubbed as the "Jurassic beaver" by the press at the time of its discovery, Castorocauda is not related to beaver but belong to a group of primitive and extinct mesozoic mammals called Docodonts.
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Comments: 11

Persona22 [2015-02-25 18:21:01 +0000 UTC]

Aren't docodonts considered to beΒ Mammaliaformes? As in, not full fledged mammals but mammal shaped?

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NTamura In reply to Persona22 [2015-02-26 04:39:45 +0000 UTC]

Yes, they are mammaliaformes...

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vinhavatar [2012-08-12 13:43:43 +0000 UTC]

Looks like a good hunting target, judging by the fur!

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RedVioletPanda [2010-10-06 05:26:46 +0000 UTC]

Wow, it looks like a otter somewhat. I didn't realize that mammals in the Jurassic had fur like that, sorry if it sounds like a dumb question.

Good work on this, I especially like the lighting and effects in the water.

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NTamura In reply to RedVioletPanda [2010-10-11 00:07:47 +0000 UTC]

Mammals certainly had fur by that time. Eomaia for instance has been preserved with fur impressions...

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RedVioletPanda In reply to NTamura [2010-10-11 03:49:45 +0000 UTC]

Oh yes, eomaia.

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RoCueto [2010-10-03 02:59:45 +0000 UTC]

That thing looks adorable.

Very good underwater ambientation

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toasted-tinapay [2010-10-03 02:28:55 +0000 UTC]

for me, this looks great. ^^

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zakafreakarama [2008-04-16 05:49:11 +0000 UTC]

Actually Castorocauda is not considered a true mammal by most scientists, since the docodonta have no modern relatives, and their ear bones differ from those of true mammals. Does it mean Castorocauda is in fact a reptile? Interesting question!

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NTamura In reply to zakafreakarama [2008-04-17 05:54:15 +0000 UTC]

Yeah that's right, a mammaliaform, not quite a mammal (neither a therian, nor a monotreme) but not a reptile either. Generally speaking, Synapsids are not considered to be reptiles.

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TehFuzzyDuck In reply to NTamura [2008-05-03 17:41:43 +0000 UTC]

Very intriguing. Well done!

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