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Morcesus — Update on the archosaur vs lepidosaur theory

#taxonomy #dragons #speculativezoology
Published: 2024-03-29 12:40:33 +0000 UTC; Views: 372; Favourites: 1; Downloads: 0
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Description There’s a link to it for the ones, who haven’t seen it:
www.deviantart.com/morcesus/ar…

Now, that I’ve drawn enough green dragons for a deviation image, it’s a time for a desert-dwelling dragon design! This isn’t about desert-dwelling dragons, but I thought it’ll be pretty cool to add a different dragon coloration design.


As I discussed in the last deviation, dragons are most likely lepidosaurs, related to agamas. So dragons are basically advanced “agamids” however, a dragon’s and an agama’s evolutionary paths did split. Dragons and agamas divde in the scientific classification from the infraorder iguanimorpha.

Dragons are homeothermic ectotherm reptiles, which means, that their heat source is the enviromnent, while their internal temperature usually stays the same. This case of ectothermy can be seen in leatherback sea turtles and some species of fish. Many of them, including dragons got mistakened for being homeothermic endotherms. This is often referred as gigantothermy.

For those people, that think, that homeothermy and endothermy are synonyms, it isn’t.

Heat source
Ectotherm: ecto=outside, therm=heat. They seek the source in their surroundings.
Endotherm: endo=inside, therm=heat. They regulate their own internal heat, but they need a lot more food to eat.

Variations
Homeotherm: homeo=same, therm=heat. They can maintain the same body temperature, this mainly occurs amongst endotherms, but also can occur among some ectotherms.
Poikilotherm: poikilo=diverse, therm=heat. Their internal temperature can differ, so they live in warmer enviromnents to maintain a suitable body temperature.

Now let me show my own classification of dragons .

Domain: Eukarya
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrae
Class: Reptilia
Subclass: Sauria
Superorder: Lepidosauria
Order: Squamata
Suborder: Iguana
Clade: Iguanimorpha
Clade: Agamidae
Infraorder: Draconimorpha
Family: Volidraconidae

(Edited it a lil bit)

⚠️Please if you are a zoology expert and find some mistakes, please comment and point out the inaccuracies and I’ll try to fix it .⚠️

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Comments: 3

Mohanstuff15 [2024-03-29 14:14:11 +0000 UTC]

👍: 0 ⏩: 1

Morcesus In reply to Mohanstuff15 [2024-03-29 14:50:52 +0000 UTC]

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Morcesus [2024-03-29 12:42:12 +0000 UTC]

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