Editing Talk:2630: Shuttle Skeleton

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I've gotta say this is the most confusing skeleton I've seen. It's certainly a vertebrate (spine? check. skull? check), and it's certainly at least a tetrapod (girdles? check. 1 proximal limb bone, two distal limb bones per limbs? check.), and definitely at least a basal reptile. However, it is correct that mammals (modern synapsids) don't have ribs going down to their hips. Additionally, if those holes in the top of the skull are supposed to be the temporal fenestrae, those are the highest-placed temporal fenestrae I've seen on a synapsid. Usually they're much lower (as an example: in a human, our temporal fenestrae are the space under our zygomatic arch - our "cheekbone," though in all fairness humans are actually poor examples of many things in synapsids). Also, the lack of a third phalanx on any of the digits is throwing me for a loop; I'm sure there are mammals that lose some phalanges on all digits, but for the life of me I can't think of one (even a horse has all three phalanges on the one digit they keep). TL;DR: this skeleton looks more like that of a diapsid reptile than a mammal, in my opinion. (My only qualification is that I have a masters in biology, and, for a year or so, I studied under a paleontologist who specialized in the split between diapsids and synapsids) [[Special:Contributions/172.69.248.143|172.69.248.143]] 18:45, 10 June 2022 (UTC)
 
I've gotta say this is the most confusing skeleton I've seen. It's certainly a vertebrate (spine? check. skull? check), and it's certainly at least a tetrapod (girdles? check. 1 proximal limb bone, two distal limb bones per limbs? check.), and definitely at least a basal reptile. However, it is correct that mammals (modern synapsids) don't have ribs going down to their hips. Additionally, if those holes in the top of the skull are supposed to be the temporal fenestrae, those are the highest-placed temporal fenestrae I've seen on a synapsid. Usually they're much lower (as an example: in a human, our temporal fenestrae are the space under our zygomatic arch - our "cheekbone," though in all fairness humans are actually poor examples of many things in synapsids). Also, the lack of a third phalanx on any of the digits is throwing me for a loop; I'm sure there are mammals that lose some phalanges on all digits, but for the life of me I can't think of one (even a horse has all three phalanges on the one digit they keep). TL;DR: this skeleton looks more like that of a diapsid reptile than a mammal, in my opinion. (My only qualification is that I have a masters in biology, and, for a year or so, I studied under a paleontologist who specialized in the split between diapsids and synapsids) [[Special:Contributions/172.69.248.143|172.69.248.143]] 18:45, 10 June 2022 (UTC)
:I believe those are the eye sockets. The temporal fenestrae would have to be below them, and largely hidden from the top view. A side view would probably have made identification easier.[[User:DL Draco Rex|DL Draco Rex]] ([[User talk:DL Draco Rex|talk]]) 18:04, 12 June 2022 (UTC)
 
  
 
I provided the requested citation concerning Georg Steller's extinction, so I removed the "Citation Needed". [[User:These Are Not The Comments You Are Looking For|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For|talk]]) 02:59, 12 June 2022 (UTC)
 
I provided the requested citation concerning Georg Steller's extinction, so I removed the "Citation Needed". [[User:These Are Not The Comments You Are Looking For|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For|talk]]) 02:59, 12 June 2022 (UTC)
 
:I would have linked to {{w|Georg Wilhelm Steller|his Wikipedia page}}, myself, for general wikisolidarity/not-having-the-padlock-icon, but probably a matter of taste... ;) [[Special:Contributions/172.70.162.5|172.70.162.5]] 10:46, 12 June 2022 (UTC)
 
:I would have linked to {{w|Georg Wilhelm Steller|his Wikipedia page}}, myself, for general wikisolidarity/not-having-the-padlock-icon, but probably a matter of taste... ;) [[Special:Contributions/172.70.162.5|172.70.162.5]] 10:46, 12 June 2022 (UTC)

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