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Anyone know an ancient mammal researcher?

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Threnody
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Anyone know an ancient mammal researcher?
Prepare for paleontological randomness. So another item on my list of strange hobbies is making horse fossil replicas in my spare time. Buying certain replicas are expensive so making the smaller ones myself is a cheaper option. I've already finished a protungulatum skull (possibly one of the first hooved mammals) and next on the evolutionary list is the skull of a phenacodus, an ancient animal that may have been the ancestor of hyracotherium (AKA eohippus AKA the dawn horse). My problem is that the only sources I've found state that phenacodus had 44 teeth, yet all the clear photos or illustrations I've found only show 42. >.< This is before wolf teeth developed so they can't be hiding by being really small. I need to know where the other two teeth went, or find an example that shows all of them. Ironically the name phenacodus is greek for "obvious teeth" :-| Anyone know a researcher of early mammals? IMAGE(http://i872.photobucket.com/albums/ab283/talkingmongo0se/craneo-y-representacion-de-phenacodus.png)
critterkeeper
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Re: Anyone know an ancient mammal researcher?

Sorry, don't know any paleontological, but just wanted to say, what a wonderful hobby :ymdaydream: ...I am intrigued and impressed. :toast

Kylene "A dog has lots of friends because he wags his tail and not his tongue." ~ Anonymous

Monsterpony
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Re: Anyone know an ancient mammal researcher?

Hmmm, the only other tooth I could imagine being in the skull is the upper wolf tooth. Could it be that the skull image is that of a female and the 44 refers to a male?

.

Krickette
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Re: Anyone know an ancient mammal researcher?

wow! that's really neat but I can't help ya! The only prehistoric horse I've seen was this one:
http://sphotos.ak.fbcdn.net/hphotos-ak-s..." onclick="window.open(this.href);return false;

saw some neat feet, too: http://sphotos.ak.fbcdn.net/hphotos-ak-s..." onclick="window.open(this.href);return false;

IMAGE(http://goo.gl/U95pT)IMAGE(http://i51.tinypic.com/zmjl75.jpg)
IMAGE(http://tickers.TickerFactory.com/ezt/d/4;10101;473/st/20111119/e/Graduation%21/k/4ffb/event.png)

Dogrose
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Re: Anyone know an ancient mammal researcher?

I checked out my Vertebrate Palaeontology text book but there is only a whole skeleton illustration of phenacodus and not much in the text :-/

[color=#804000][i]I bought me a horse twas called a grey mare
Grey mane and grey tail and green stripe on her back
Grey mane and grey tail and green stripe on her back
Weren't a hair upon her that was not coal black[/i][/color]

Threnody
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Re: Anyone know an ancient mammal researcher?

Thanks critterskeeper. ^_^

I guess I should post some photos :smile:
Protungulatum image and the skull I made from apoxy sculpt. Not prepped or painted and fairly basic just to use as part of the series. And rat skull and quarter for size reference.
IMAGE(http://i872.photobucket.com/albums/ab283/talkingmongo0se/9ab1c33f541a073fe141fc7354e7b201.gif)
IMAGE(http://i872.photobucket.com/albums/ab283/talkingmongo0se/DSC01019.jpg)
IMAGE(http://i872.photobucket.com/albums/ab283/talkingmongo0se/DSC01021.jpg)

And a mesohippus skull. I did NOT make this. This was a present from my grandmother for my birthday :lol: The cranium and the jaw are from two separate individuals so they don't fit together well. And to top it off the cranium was from a male and the jaw was from a female since the cranium has canines and the jaw lacks them.
IMAGE(http://i872.photobucket.com/albums/ab283/talkingmongo0se/DSC01022.jpg)
IMAGE(http://i872.photobucket.com/albums/ab283/talkingmongo0se/DSC01024.jpg)
Wolf tooth close up.
IMAGE(http://i872.photobucket.com/albums/ab283/talkingmongo0se/DSC01023.jpg)

Threnody
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Re: Anyone know an ancient mammal researcher?

Back to the confounding mystery of the missing premolars!

The large canines are the ones that eventually become sexually dimorphic later in their evolution, so at this point both male female phenadodus have them. The 2 missing teeth are the upper first premolars that would later turn into wolf teeth. Hyracotherium, the next in the line of evolution have these teeth which are fairly prominent premolars that almost look like a second set of canines.

IMAGE(http://i872.photobucket.com/albums/ab283/talkingmongo0se/hyracoth.jpg)

I guess it could be possible that these premolars were sexually dimorphic in the phenacodus since we don't know if it really did precede hyracotherium. It could just be a very close cousin of the genus it did evolve from. :?:

pandemonium