Recently Discovered Dinosaurs: The Newest Species Found
Recently Discovered Dinosaurs: The Newest Species Found
Paleontology is one of the most exciting and fast-moving sciences. Every year, scientists discover and name dozens of new dinosaur species from around the world. Some are tiny, feathered creatures found in China. Others are massive predators unearthed in South America. Each new discovery adds to our understanding of the incredible diversity of dinosaurs.
Here are some of the most exciting dinosaur discoveries from recent years.
Meraxes (Named 2022)
The Giant with Tiny Arms
Where: Argentina | Period: Late Cretaceous (~90 million years ago) | Length: 11 meters | Weight: ~4,000 kg
Meraxes gigas, named after a dragon from George R.R. Martin’s A Song of Ice and Fire series, is a massive carcharodontosaurid predator — and it has something fascinating in common with T-Rex: tiny arms.
Why it matters:
- Proves that tiny arms evolved independently in at least three different predator lineages — T-Rex (tyrannosaurs), Meraxes (carcharodontosaurids), and Carnotaurus (abelisaurids)
- This convergent evolution suggests small arms were actually advantageous for large predators, not a leftover defect
- Scientists theorize the arms shrunk because they were no longer needed — the massive skull and jaws took over all predatory functions
- One of the most complete carcharodontosaurid skeletons ever found, with detailed skull and arm bones
Jakapil (Named 2022)
The Armored Rebel
Where: Argentina | Period: Late Cretaceous (~97 million years ago) | Length: 1.5 meters | Weight: ~5 kg
Jakapil kaniukura is small but scientifically revolutionary. It’s a thyreophoran — the group that includes Stegosaurus and Ankylosaurus — but it lived in South America during the Late Cretaceous, millions of years after scientists thought this group had disappeared from the southern continents.
Why it matters:
- Rewrites the evolutionary history of armored dinosaurs — thyreophorans survived in South America far longer than previously known
- Bipedal armored dinosaur — while its relatives were all quadrupedal, Jakapil walked on two legs
- Rows of bony armor along its neck and back, like a miniature ankylosaur
- Suggests there may be many more undiscovered small dinosaur species hiding in the fossil record
Maip (Named 2022)
The Shadow of Death
Where: Argentina | Period: Late Cretaceous (~70 million years ago) | Length: 9-10 meters | Weight: ~2,500 kg
Maip macrothorax is a megaraptorid — a group of large, mysterious theropods with enormous arm claws. Its name comes from an evil spirit in Patagonian indigenous mythology.
Why it matters:
- One of the largest megaraptorids ever found
- Had an enormous ribcage, suggesting powerful lungs and high endurance
- Represents the apex predator of Late Cretaceous Patagonia
- Helps fill in the picture of South American dinosaur ecosystems before the extinction
Thanos (Named 2018)
Yes, Named After THAT Thanos
Where: Brazil | Period: Late Cretaceous (~80 million years ago) | Length: 5-6 meters | Weight: ~1,000 kg
Thanos simonattoi is an abelisaurid predator named after the Marvel supervillain due to features on its neck vertebrae that reminded the describing paleontologist of the Infinity Gauntlet. Science can have a sense of humor!
Why it matters:
- One of the few abelisaurid dinosaurs found in Brazil
- Helps map the distribution of Carnotaurus-like predators across South America
- Shows the diversity of medium-sized predators in the Late Cretaceous
Dreadnoughtus (Named 2014)
The Dinosaur That Feared Nothing
Where: Argentina | Period: Late Cretaceous (~77 million years ago) | Length: 26 meters | Weight: ~65,000 kg
Dreadnoughtus schrani, meaning “fears nothing,” is one of the largest dinosaurs ever found — and one of the most complete giant sauropod skeletons. At 65 tons, it weighed more than a Boeing 737.
Why it matters:
- Most complete giant sauropod ever discovered — over 70% of the skeleton was recovered
- Allows scientists to make much more accurate size estimates for other giant sauropods
- Was still growing when it died — the bones show it hadn’t reached full maturity, meaning adults were even larger
- Named “Dreadnoughtus” because at 65 tons, no predator could threaten a healthy adult
Halszkaraptor (Named 2017)
The Swimming Raptor
Where: Mongolia | Period: Late Cretaceous (~71 million years ago) | Length: 0.6 meters | Weight: ~2 kg
Halszkaraptor escuilliei is one of the strangest dinosaurs ever discovered — a semi-aquatic dromaeosaurid (raptor) that lived like a modern duck or swan.
Why it matters:
- First known semi-aquatic raptor — challenges everything we thought about dromaeosaurid ecology
- Had a swan-like neck for underwater fishing
- Flipper-like arms for swimming
- Sensory pits in the snout similar to crocodiles, used to detect prey underwater
- Scanned with synchrotron X-rays while still embedded in rock, revealing its internal structure without physical preparation
Bajadasaurus (Named 2019)
The Punk Rock Sauropod
Where: Argentina | Period: Early Cretaceous (~140 million years ago) | Length: 9-10 meters
Bajadasaurus pronuspinax had one of the most bizarre appearances of any dinosaur: long, forward-pointing spines projecting from its neck, making it look like a prehistoric punk rocker.
Why it matters:
- Extremely long neural spines that pointed forward over the neck — unique among sauropods
- Spines may have been covered in keratin sheaths, making them even longer
- Function debated: defense against predators, display for mating, or thermoregulation
- A dicraeosaurid sauropod — a relatively rare family of shorter-necked sauropods
Where Are New Dinosaurs Being Found?
The Global Dinosaur Hotspots
| Region | Recent Major Finds | Why It’s Important |
|---|---|---|
| Patagonia, Argentina | Meraxes, Maip, Jakapil, Dreadnoughtus | Remote, unexplored fossil beds in ancient river systems |
| Liaoning, China | Dozens of feathered species | Exceptional preservation of soft tissues like feathers |
| Gobi Desert, Mongolia | Halszkaraptor, new oviraptorids | Dry conditions preserve delicate fossils |
| Sahara, North Africa | New spinosaurids, abelisaurids | Vast, understudied Cretaceous formations |
| Australia | Australovenator | Previously unknown southern fauna |
| Brazil | Thanos, new titanosaurs | Growing paleontological research infrastructure |
Why Are We Finding More Dinosaurs Now?
- New technology: CT scanning, synchrotron imaging, and DNA analysis reveal details invisible to the naked eye
- More paleontologists: The global paleontology community is larger and more diverse than ever
- New regions: Historically understudied areas (Africa, South America, Asia) are yielding incredible finds
- Climate change: Melting glaciers and eroding landscapes are exposing new fossil sites
- Citizen science: Amateur fossil hunters continue to make major discoveries
How Many Dinosaurs Are Left to Discover?
Scientists estimate that we’ve only discovered about 28-30% of all dinosaur genera that ever existed. That means there are potentially thousands of species still waiting to be found, buried in rock formations around the world.
What we know:
- About 1,000 valid dinosaur species have been named so far
- Approximately 50 new species are named each year (and accelerating)
- Some estimates suggest over 2,500 genera existed during the Mesozoic
- Most undiscovered species are likely small-bodied dinosaurs, which fossilize less readily
The golden age of dinosaur discovery isn’t in the past — it’s happening right now.
What Will We Discover Next?
Based on current research trends, here are predictions for future discoveries:
- More feathered dinosaur species — as Chinese fossil beds continue to be explored
- Antarctic dinosaurs — melting ice is revealing fossils on the frozen continent
- Soft tissue preservation — new techniques may reveal muscles, organs, and even proteins
- Dinosaur behavior — trackways and nesting sites will reveal more about social structures
- Color in more species — melanosome analysis will determine the colors of more dinosaurs
- Complete ecosystem reconstruction — understanding not just individual species, but entire ecosystems
Conclusion
Every new dinosaur discovery reminds us that the Mesozoic world was far more diverse, strange, and wonderful than we imagined. From the tiny swimming raptor Halszkaraptor to the 65-ton Dreadnoughtus, from the punk-rocked Bajadasaurus to the Marvel-inspired Thanos, each new species adds another piece to the massive puzzle of prehistoric life.
And with thousands of species still waiting to be found, the most exciting dinosaur discoveries may still be ahead of us.
Want to explore more? Check out our profiles of Meraxes, Jakapil, Dreadnoughtus, and Halszkaraptor!