Dimetrodon

Dimetrodon
The Dimetrodon in the museum in Animal Crossing: New Horizons.
Scientific name
Dimetrodon grandis
Type		Multi-part
Period(s)		Early Permian
Length		11.5 feet (3.5 meters)
Main appearances
DnM DnM+ AC DnMe+ iQue WW CF NL NH
Name in other languages  ディメトロドン  异齿龙  Dimétrodon  Dimetrodonte  Dimetrodonte  Диметродон  디메트로돈  異齒龍  Dimétrodon  Dimetrodonte  Dimetrodon  Dimetrodon

The Dimetrodon is a multi-part fossil in the Animal Crossing series introduced in Animal Crossing: Wild World. In games prior to Animal Crossing: New Horizons it has three parts, and in New Horizons it has two parts.

At the museum

In Wild World

When donating to Blathers in Wild World, he will provide the following information about the Dimetrodon:

"It lived early on, when dinosaurs first began roaming the earth, wot? And actually, to be quite accurate, it's not even a real dinosaur at all! As we know, dinosaurs were cold-blooded and could not change body temperature. But the dimetrodon could! It used its distinctive back to control heat! For this reason, it is considered what we call a "mammalian reptile," wot? Ah. Hoo. Yes, sorry. I got rather blabby, there. I got heated up, hoo!"

In City Folk

The Dimetrodon in the museum in City Folk.

When donating to Blathers in City Folk, he will provide the following information about the Dimetrodon:

"...And with that, the dimetrodon is complete! Hoo, what a spectacle! The dimetrodon was from a period early in the history of the dinosaurs, eh wot? In point of fact, it's not even a real dinosaur! That's because it could regulate body temperature, unlike other dinosaurs. The dimetrodon did so by using its distinctively shaped back... Indeed, and that is why it's considered what some call a 'mammalian reptile'!"

In New Leaf

After donating the final part of the fossil in New Leaf, its plaque in the museum will read:

"Despite its reptilian appearance, the dimetrodon was not actually a dinosaur, as you'd assume. It was, in fact, a mammal-like reptile that went extinct before the first dinosaurs appeared. It had knife-like teeth for slicing as well as smaller ones for crushing. The large fan on its back was used to regulate body temperature-- an important feature of the time."

In New Horizons

When the player donates to Blathers or selects "Tell me about this!" in New Horizons, he will provide the following information about the fossil:

"Ah, yes. Dimetrodon. Not actually a dinosaur, despite what some people may tell you. This REPTILE—not dinosaur is most famous for the large sail-like organ on its back. Said organ was likely useful in regulating its non-dinosaur—body temperature. Reptiles are known to be cold- blooded, but there is some debate as to whether dinosaurs were too. Dimetrodon assuredly was."

The Dimetrodon can be found in the second room of the fossil exhibit in the museum.

As an item

In Wild World

#25

Dimetrodon skull
Sell price	5,500 Bells
Colors	Brown   Brown
HRA genre	Old-school
Size

#26

Dimetrodon torso
Sell price	5,000 Bells
Colors	Brown   Brown
HRA genre	Old-school
Size

#27

Dimetrodon tail
Sell price	4,500 Bells
Colors	Brown   Brown
HRA genre	Old-school
Size

In City Folk

#25

Dimetrodon skull
Sell price	5,500 Bells
Colors	Brown   Brown
HRA genre	Retro
Size

#26

Dimetrodon torso
Sell price	5,000 Bells
Colors	Brown   Brown
HRA genre	Retro
Size

#27

Dimetrodon tail
Sell price	4,500 Bells
Colors	Brown   Brown
HRA genre	Retro
Size

In New Leaf

Dimetrodon skull
Sell price	5,500 Bells
Colors	Brown   Brown
Style	Historical
HHA theme challenge	Quirky
Size

Dimetrodon torso
Sell price	5,000 Bells
Colors	Brown   Brown
Style	Historical
HHA theme challenge	Quirky
Size

Dimetrodon tail
Sell price	4,500 Bells
Colors	Brown   Brown
Style	Historical
HHA theme challenge	Quirky
Size

In New Horizons

Dimetrodon skull
Interactable	No
Sell price	5,500 Bells
Colors	Brown   Brown
Size

Dimetrodon torso
Interactable	No
Sell price	5,000 Bells
Colors	Brown   Brown
Size

Real-world information

Dimetrodon, meaning "two measures of teeth", is an extinct genus of non-mammalian synapsids that lived during the Cisuralian (Early Permian), around 295–272 million years ago (Ma). It is a member of the family Sphenacodontidae. The most prominent feature of Dimetrodon is the large neural spine sail on its back formed by elongated spines extending from the vertebrae. It walked on four legs and had a tall, curved skull with large teeth of different sizes set along the jaws. Most fossils have been found in the southwestern United States, the majority coming from a geological deposit called the Red Beds of Texas and Oklahoma. More recently, fossils have been found in Germany. Over a dozen species have been named since the genus was first described in 1878.

Dimetrodon is often mistaken for a dinosaur or as a contemporary of dinosaurs in popular culture, but it became extinct some 40 million years before the first appearance of dinosaurs. Reptile-like in appearance and physiology, Dimetrodon is nevertheless more closely related to mammals than to modern reptiles, though it is not a direct ancestor of mammals. Dimetrodon is assigned to the "non-mammalian synapsids", a group traditionally called "mammal-like reptiles". This groups Dimetrodon together with mammals in a clade (evolutionary group) called Synapsida, while placing dinosaurs, reptiles and birds in a separate clade, Sauropsida. Single openings in the skull behind each eye, known as temporal fenestrae, and other skull features distinguish Dimetrodon and mammals from most of the earliest sauropsids. It was a carnivore and had a fan to regulate body temperature.

More information on this topic is available at Wikipedia.