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PeteriDish — Partial cladogram
Published: 2013-01-26 15:53:45 +0000 UTC; Views: 912; Favourites: 17; Downloads: 21
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Description
Some of the ideas I had have crystalized and took final shape when creating this piece, and I will therefore have to slightly adjust some of the preceeding sketches.As you can see, this diagram follows the introduction and acummulation of traits in the different lineages.
this is just the tip pf the iceberg and most of the vertebrates are still left undescribed, I still have all the other (exothermic) "vertebrates" to be fleshed out (maybe with another convergently evolved endothermic branch) so there's still a lot of work ahead.
In the aftermath of uploading this, I feel the ear slits in the left and right clade should be in similar place as the ears of the middle clade... =/
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Comments: 17
Ooh! I can't wait to see the creatures that are on their way!
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that willhopefully be sooner than later!
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I want to see the common ancestor.
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imagine the creature on the right, but without the cheeks and with the nostrills in front of the lower eyes. But this is just the head, of course there are going to be much more apparent differences in the body and limb structure; and physiology, especially reproduction. There will be one group which I haven't fleshed out yet, (although maybe the "blenderjaw" could be an aquatic representative) which will reproduce through an egg sack, which will be essentially an endometrium filled with amphibian-like eggs (in some caes, the smaller "tadpoles" could be eaten by the bigger ones, leaving only a few of the biggest ones to survive, and those big ones would then bite through the sack, or the egg sack would be only strong enough to last until the young hatch, or the mother would have to return to the nest - or guard it throughout the incubation period - to dig it up, tear the sack and set them free...) In another clade, possibly the clade on the right, this "sack" would essentially be a rubbery egg housing a single offspring, then there would be a clade with hard-shelled eggs - the clade on the left - and the clade in the middle would be viviparous 
Now an idea strikes me that the clade with the many little eggs inside an eggsack could have a special adaptation in the males, spurs which would puncture the early stage of the sack while it is still inside the female, then the fertilized ovi would multipply, forming the eggs, the wound in the sack would heal, and the sack would be expelled, burried and either left alone or guarded by one of the parents, but this sounds a bit stupid, as the penetration could take place before the eggsack were even enclosed to begin with. I will probably save this for some other simpler critters which would just stab the other gender anywhere, transporting sperm there, and then the "load" would be concealed inside of a sack, and then the cells forming the wall of the sack would undergo meiosis, becoming the ovi which the sperm can vertilize, but these would be really uninteresting critters visually, very simple things, only with this interesting quirk XD
Another idea I find strangely attractive is the idea of spermatophores...
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Interesting classification. few other vertebrate clades existed in your project?
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surely! this is just the tip of the iceberg
These are some of the most basic ones: [link] - I call the group as a whole "ichthiids" until I come up with a different name, and then I have two or three other lineages planned
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Interesting, something else: you have made many creatures and now I've confused. Could you tell me which planets have you done? and all living creatures? or what you've created is a single project?
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if you look in my gallery, you will see many collections in the sidebar. I am still working on one and the same project, but the basic shape of some of the animal groups has changed so much due to countless updates, that some of the most recent concept look nothing like the original ones, which is why I have two folders, one for the "up to date" concepts and one for the outdated concepts. So everything in the "up to date" collection is my current vision of the portrayed animals.
I know it's confusing, but I hope it's a bit easier to understand now.
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Dame this is jawsome i think i like the middle one the most so far but theyre all very cool gave you drawn theyre bodies? Im interestedto see what theyll look like
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thanks! they're going to be hexapods like before
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Sweet i cant wait to see a full drawing
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you already have some of the full body drawings aviable!
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True but the flightless birds aint hexapods
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sure they are XD the shaded one had wing-like hindlimbs which were folded over the tail and the following sketch with the male and female are unambiguously hexapods. and snakes have no legs and still are tetrapods because of their ancestry, sirenians and cetaceans have only forelegs and still are tetrapods because of their ancestry 
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Good point and yeah i didnt remember the back limbs
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