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Consensus on mode of reproduction in dicynodonts; Oviparity or Viviparity or Ovoviviparity... or something else?
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Topic Started: Nov 15 2014, 08:24 PM (376 Views)
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Caimännir
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Nov 15 2014, 08:24 PM
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What mode of reproduction do dicynodonts use in this project? Or at least, what mode of reproduction did the original dicynodonts to arrive on the islands use?
I don't think it's officially established in the scientific community yet, so this is just for the purposes of this project.
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Hybrid
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Nov 15 2014, 09:08 PM
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I think it's best to assume that they laid eggs, since we know that even mammals originally didn't laid eggs. Since there's no evidence of them bearing live young, we should not have them give birth to live young either. These are a population that was isolated on islands, not a alternate Mesozoic-type project (well, technically it is but not really). You might as well give the islands (non-mammalian) cyndonts live-bearing abilities too.
Another point would be that it would be making them more mammalian, which is just lazy. You might as well give them external ears, fully erect limbs and able to produce milk.
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Monster
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Nov 19 2014, 04:17 PM
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In addition to this, based on the discussion on Caiman's Rhoggle thread I think we should decide whether there are going to be multiple clades of dicynodont on the islands as the possibility of having lines evolving differing modes of reproduction has been brought up.
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Martin
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Nov 19 2014, 04:49 PM
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Well viviparity is a feature that has evolved independently and many times in squamates and seeing how dicynodonts were closely related to mammals, they probably laid soft-shelled eggs. In my opinion we could have both oviparous and viviparous dicynodonts, with the viviparous ones probably being more common in the colder regions (for reasons which I believe are obvious).
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LittleLazyLass
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Nov 19 2014, 04:51 PM
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I agree, for again, this gives more freedom in what we can do.
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