Top Ten Weirdest and Most Bizarre Dinosaurs

The Top Ten
1 Masiakasaurus

Very poorly known, so it really deserves a spot. Its teeth are just so scary yet surprisingly cool and bizarre.

2 Concavenator

The Concavenator is a weird dinosaur with a weird bone on its back! It's very weird.

3 Pelecanimimus
4 Sharovipteryx
5 Procompsognathus
6 Ornitholestes
7 Therizinosaurus Therizinosaurus is a genus of very large therizinosaurid that lived in Asia during the Late Cretaceous period in what is now the Nemegt Formation around 70 million years ago.

No dinosaur will ever be as weird and bizarre as Therizinosaurus and its kin. It's a theropod, so you'd expect it to be a carnivore judging by its infamous claws. In reality, it's a herbivore that used its claws either for defense or to pull branches towards it.

Another amazing factor is that when it was first discovered, scientists speculated it was a gigantic turtle. It even looks like a reptilian sloth!

Who did you expect? This dinosaur is just so weird that it is actually really cool. With 1-meter long claws, you'd think this is going to be one terrifying monster, yet it is a herbivore despite its status as a theropod! Plus, its whole family tree consists of herbivores. Therizinosaurus still stands out as the most bizarre and weirdest dinosaur in existence. Also, don't get fooled. This beast can slice up a Tarbosaurus with its awesome claws!

8 Spinosaurus Spinosaurus is a genus of theropod dinosaur that lived in what now is North Africa, during the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago.

Spinosaurus is one of my favorite dinosaurs ever, probably in my top three. And no, I'm not going for Jurassic Park III.

Part of why I love Spinosaurus is because of how unique and bizarre it looks. No dinosaur could look as ridiculous as that (maybe except Therizinosaurus, but who cares). It's a fish-eater despite being a theropod, and that snout just steals people's attention. The sail itself makes its appearance more appealing. Lastly, it's a quadrupedal animal, and that's coming from a theropod, something that always walks on two feet.

I don't think it holds a candle to the Rex, but I love Spinosaurus for being its own. Weird, big, and just amazing to look at. It's one dinosaur you wouldn't think about until actually seeing it.

9 Amargasaurus Native to what is now Argentina, Amargasaurus is a sauropod dinosaur from the Early Cretaceous period. It features distinctive, elongated neural spines on its neck and back, possibly for display or protection. Unlike other sauropods, it was relatively small, measuring about 30 feet in length.

A small sauropod with long, spiky spines on its back formed into a double sail. Now that's genius for something like Amargasaurus.

10 Carnotaurus Carnotaurus, meaning "Meat eating Bull" in Ancient Greek, is a genus of abelisauridae theropod dinosaur that lived in what is now South America about 70 million years ago in the Late Cretaceous period.

I wouldn't forget my third favorite dinosaur! Carnotaurus sure does look weird. A bulldog-like head, a well-preserved body with bony bumps on its back, and surprisingly puny arms are just enough to make this land on this list. Oh, and it looks demonic too.

I always found Carnotaurus to be one of my favorites. It looks like a bull/dinosaur. Its long legs for speed make this big-headed dinosaur look very interesting while running, or so I presume.

One of the theropods capable of wiping out humanity!

The Contenders
11 Mononykus

Small, puny, and very poorly known. However, this guy has only one finger and looks kind of weird to me as well.

Is it stranger that the bird Masked Lapwing also has one finger?

12 Microraptor

While very revolutionary in terms of evolution and paleontology, this guy gets a spot mainly due to its wings. I mean, who wouldn't like a gliding dinosaur?

13 Suzhousaurus
14 Obamadon
15 Balaur bondoc

This dino came from Romania (my homeland) and was a raptor bigger than the Velociraptor. It was weird because it had two killing claws on both feet, so this thing was a killer. Its name means dragon. This is my favorite raptor.

16 Any Ceratopsian

They have so many weird frills and intricate designs that it's just hard to choose one. We've got Styracosaurus, Pachyrhinosaurus, Medusaceratops, and many more! So, I thought I'd compile all of them into one spot. My personal favorite would have to be Diabloceratops, though.

Even if Styracosaurus may look weird, it is still cool and actually a lot of people like it, like me. Styracosaurus is my favorite dinosaur ever.

17 Any Lambeosaurinae

It's just too difficult to choose which one. There are too many to choose from (Parasaurolophus, Corythosaurus, Lambeosaurus, Tsintaosaurus). Just like No. 9, I thought it was better if I could put them into one list. Parasaurolophus would be my favorite. Its crest is just too nostalgic.

18 Scansoriopteryx
19 Parksosaurus
20 Dilophosaurus Dilophosaurus is a genus of theropod dinosaur. It contains a single known species, Dilophosaurus wetherilli, known from fossil remains found in the Kayenta formation of Arizona.

The first "King of the Dinosaurs," Dilophosaurus is now one of the most famous (nice job, Spielberg). Plus, those crests are just so cool-looking. No frill and poison. Those were just imaginary.

It didn't have frills or shoot acid. It was a dangerous dinosaur, though, and it did have those round horns.

I want to know if this creature had poisonous spit.

21 Irritator
22 Tyrannosaurus Tyrannosaurus, meaning "tyrant lizard", from the Ancient Greek tyrannos, "tyrant", and sauros, "lizard" is a genus of coelurosaurian theropod dinosaur. It also had a tremendous bite force, the strongest of any Dinosaur and living terrestrial animal. Its bite force reached up to 12,800 pounds (roughly... read more
23 Dracorex Dracorex is a dinosaur genus of the family Pachycephalosauridae, from the Late Cretaceous of North America.
24 Acrocanthosaurus Acrocanthosaurus is a genus of theropod dinosaur that existed in what is now North America during the Aptian and early Albian stages of the Early Cretaceous.
25 Utahraptor Utahraptor is a genus of theropod dinosaurs. It contains a single species, Utahraptor ostrommaysorum, which is the largest known member of the family Dromaeosauridae.
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