A dinosaur which had the least exploitable niche in an environment which has remained consistent. First, we have to consider that the temperature was much warmer back then. This means we can pretty much rule out the northern hemisphere altogether (sorry Nessie fans, which isn’t technically a dinosaur anyway…). That leaves South America, Africa, Australia and parts of Asia/the Middle East. The places they live would have to be pretty unexplored. We would have to find some reason for their absence from the fossil record, but this is pretty easy: bones in tropical rainforests decompose VERY quickly, meaning fossilisation of such animals is pretty much impossible. We’d also need something with a fairly unique niche that couldn’t be replaced by birds, so Microraptor is out of the question. It’d likely have to be quite a bit larger than that to compete. So we’re looking at some kind of small/medium sized , forest-dwelling dinosaur in the Southern Hemisphere. This narrows it down to one obvious candidate: Archaeornithomimus. Guess we should send someone out to look for him? Answer from Deleted User on reddit.com
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The Conversation
theconversation.com › could-dinosaurs-still-exist-somewhere-in-the-world-a-paleontologist-explains-233967
Could dinosaurs still exist somewhere in the world? A paleontologist explains
December 8, 2024 - As a paleontologist, I have spent much of my life studying ancient animals, particularly dinosaurs. But I have seen only fossils of these creatures, nothing living – with one exception. One group of dinosaurs is still around.
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Newsweek
newsweek.com › fact check
Fact Check: Did China discover "dinosaur-like creatures" in uncharted land?
March 2, 2023 - Apart from the established fact that all non-bird dinosaurs died out after the collision of an asteroid with the earth 66 million years ago, Raven Holiday cited no sources, only mentioning a likely unreliable translation allegedly from a Chinese news report.
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Yale News
news.yale.edu › 2011 › 07 › 12 › last-dinosaur-mass-extinction-discovered
Last dinosaur before mass extinction discovered | Yale News
October 6, 2024 - A team of scientists has discovered the youngest dinosaur preserved in the fossil record before the catastrophic meteor impact 65 million years ago.
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Snexplores
snexplores.org › article › birds-living-dinosaurs
Dinosaurs are still alive. Today, we call them birds
April 7, 2025 - This specimen, displayed at a museum in Berlin, Germany, is one of 13 known skeletal Archaeopteryx fossils. Discovered in the mid-1870s, the nearly complete fossil includes impressions of well-developed feathers along the animal’s wings and tail. The next feathered dinosaur wouldn’t be found until over a century later.
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Reddit
reddit.com › r/paleontology › hypothetically speaking, if a non-avian dinosaur were surprisingly still found alive today, which one do you think it would most likely be and why?
r/Paleontology on Reddit: Hypothetically speaking, if a non-avian dinosaur were surprisingly still found alive today, which one do you think it would most likely be and why?
June 4, 2022 - The ones that are more bird-like. Birds survived the mass extinction because of their small size and flight. I'd say the Microraptor is the most likely to be alive today. ... https://www.science.org/content/article/quaillike-creature-was-only-bird-survive-dinosaur-killing-asteroid-impact
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Hastings Aquarium
hastingsaquarium.co.uk › blog › animal-stories › 10-living-descendants-and-relatives-of-dinosaurs
10 Living Descendants and Relatives of Dinosaurs - Hastings Aquarium
October 24, 2023 - Today, it’s extinct just like any other dinosaur, but there still are some animals roaming the Earth that are connected to those ancient species. From soaring birds to swimming crocs, we’ve found 10 living species that call dinosaurs their (great-great-great-great-great-great-great) grans and grandads.
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Live Science
livescience.com › animals › extinct species › dinosaurs
New 'eternal sleeper' dinosaur species was entombed while still alive | Live Science
September 14, 2020 - Burrowing dinosaurs may have been sleeping underground when they were suddenly buried alive about 125 million years ago.
Find elsewhere
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BBC
bbc.com › news › world-asia-china-59748281
Perfectly preserved dinosaur embryo found in China
Scientists have announced the discovery of a perfectly preserved dinosaur embryo that was preparing to hatch from its egg, just like a chicken.
Published   December 21, 2021
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Reddit
reddit.com › r/paleontology › living dinosaurs: improbable but not impossible?
r/Paleontology on Reddit: Living Dinosaurs: Improbable but not Impossible?
July 31, 2022 -

A few months ago I learned about Mokele-Mbembe, I supposed sauropod living in the Congo, and I immediately became obsessed with the idea of living dinosaurs. After doing more research into the topic it doesn’t seem very likely for a couple of reasons. There’s no evidence of dinosaurs in the fossil record post the Cretaceous period which indicates extinction. Evidence of living fossils like crocodiles and coelacanths are faulty because their survival into the modern day is due to unique circumstances like size, environment, and a slower rate of evolution. And supposed living dinosaurs, including Mokele-Mbembe, have descriptions more in line with older views of Dinosaurs rather than our more current understandings. But during my research I’m also frequently hear claims along the line of, “a surviving dinosaurs is highly implausible but not impossible.” I’m very curious what you guys think of this claim. Is it not impossible for a dinosaur to have survived, and if so why is it not impossible? Or do you think there’s absolutely no way a dinosaur could ever possibly survived?

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Hello and thanks for sharing :) A few months ago I learned about Mokele-Mbembe, I supposed sauropod living in the Congo, and I immediately became obsessed with the idea of living dinosaurs. Well, there are plenty of living dinosaurs out there, we just call them "birds". After doing more research into the topic it doesn’t seem very likely for a couple of reasons. There’s no evidence of dinosaurs in the fossil record post the Cretaceous period which indicates extinction. Evidence of living fossils like crocodiles and coelacanths are faulty because their survival into the modern day is due to unique circumstances like size, environment, and a slower rate of evolution. That's a common misconception actually. While coelacanths and crocodilians can certainly trace their evolutionary history back to the Mesozoic, these fossil ancestors are not identical to their modern counterparts. We would be genuinely astonished for example, to find the remains of a modern saltwater crocodile (Crocodylus porosus) in Mesozoic fossil beds. Indeed, Crocodyloidea (the clade which includes true crocodiles) did not exist at all during the Mesozoic, but arose after the KT extinction event during the Eocene (Darlim et al. 2022). And supposed living dinosaurs, including Mokele-Mbembe, have descriptions more in line with older views of Dinosaurs rather than our more current understandings. The description of Mokele-Mbembe are also so vague and conflicting between different tribes and alleged witnesses that they could also conceivably refer to modern elephants, rhinoceros, hippopotamus or an amalgam of modern species, not unlike the hippogriff or griffin. But during my research I’m also frequently hear claims along the line of, “a surviving dinosaurs is highly implausible but not impossible.” I’m very curious what you guys think of this claim. The odds of an Apatosaur-sized sauropod surviving undetected in the Central African Rainforests to the modern day is extraordinarily unlikely. Yes, the Congo basin was remote and unexplored by westerners at the turn of the last century, but it's not that remote today. There are over 80 million people who live and work in and around the basin and the forest itself has been fragmented and cut down (so much so that the UN estimates there may not be any primary rainforest left in the basin by 2100). And yet, there still there is no reliable evidence of a sauropod dinosaur. Sometimes absence of evidence is indeed evidence of absence. If a non-avian dinosaur lineage did survive to the present without detection by the 8 billion current inhabitants of the globe, then it is far more likely to be a small, unobtrusive animal (think Compsognathus-sized), than a great big sauropod with huge dietary and space needs. Is it not impossible for a dinosaur to have survived, and if so why is it not impossible? Or do you think there’s absolutely no way a dinosaur could ever possibly survived? Science does not deal with absolute certainties. At this stage though, we can confidently say all of the available evidence we have indicates non-avian dinosaurs died out 65 million years ago at the end of the Cretaceous Period and there is no good evidence for their continued persistence to the modern day. References Darlim, G., Lee, M. S., Walter, J., & Rabi, M. (2022). The impact of molecular data on the phylogenetic position of the putative oldest crown crocodilian and the age of the clade. Biology Letters, 18(2), 20210603.
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On an unrelated note, when you mention "slower rate of evolution" I don't think that exists. Evolution never stops, the reason why crocodiles and others remained basically the same for so long is because the environmental and the sexual pressures didn't drive these animals in a direction that would have changed them
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Dinosaur World Live
dinosaurworldlive.com › blog › 4-descendants-and-relatives-of-dinosaurs-that-are-alive-today
4 descendants and relatives of dinosaurs that are alive today
The last dinosaurs may have died out over 65 million years ago, but incredibly, there are still some relatives of them alive today. And while it may be hard to believe, the only surviving descendant of theropods - two-legged, meat-eating dinosaurs like Allosaurus and T.
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Phys.org
phys.org › news › 2017-07-dinosaur-era-alive-north-america.html
Dinosaur-era plant found alive in North America for first time
July 31, 2017 - And while there were 16 locations in the Midwest that Lychnothamnus barbatus was pulled from, there is the possibility that this dinosaur-era plant may have survived into our era elsewhere in North America.
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Daily Galaxy
dailygalaxy.com › home › science › scientists unearth 110-million-year-old dinosaur “mummy” in canada with its skin and organs so intact, it looks almost alive
Scientists Unearth 110-Million-Year-Old Dinosaur "Mummy" in Canada With Its Skin and Organs So Intact, It Looks Almost Alive
1 month ago - It was a three-dimensional specimen—its skin, armor, keratin sheaths, and even pigmentation all still intact after 110 million years underground. Named Borealopelta markmitchelli, the fossil is now considered the best-preserved armored dinosaur ...
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EcoNoticias
ecoticias.com › eco news › technology › could it be born now? 70 million year old dinosaur embryo found
Could it be born now? 70 million year old dinosaur embryo found
February 24, 2025 - A 70-million-year-old dinosaur embryo was found in Missouri. Could it hatch today? Discover why this find is groundbreaking but scientifically impossible
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National Geographic
news.nationalgeographic.org › new-gentle-giant-dinosaur-uncovered-in-patagonia-alongside-rare-collection-of-ancient-life
New “gentle giant” dinosaur uncovered in Patagonia alongside rare collection of ancient life
March 5, 2025 - A team of 18 interdisciplinary specialists including National Geographic Explorer Diego Pol have unearthed a new titanosaur in the Anacleto Formation of northern Patagonia
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Ancient Odysseys
ancientodysseys.com › post › top-10-list-of-dinosaurs-found-in-australia
Top 10 list of dinosaurs found in Australia
March 4, 2024 - Australotitan is a sauropod found in Queensland in 2005 by Sandy Mackenzie, near his hometown of Eromanga. Australotitan is a new species of herbivorous titanosaur and is the largest known Australian dinosaur, to date. The specimen, nicknamed “Cooper,” was alive 95-98 million years ago, and would have measured 30 meters in length and 6.5 meters in height.
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ABC News
abcnews.go.com › Technology › new-eusauropod-39-foot-neck-discovered-china › story
New massive dinosaur measuring at 39 feet discovered in China - ABC News
September 2, 2025 - Huashanosaurus qini, discovered in the Guangxi region of China, is part of a new genus and species of early eusauropod from the Jurassic period, according to a paper published in the journal Acta Geologica Sinica.
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Dinosaur World Live
dinosaurworldlive.com › blog › dinosaur-fossils-where-have-the-most-fossils-been-found
DINOSAUR FOSSILS: WHERE HAVE THE MOST FOSSILS BEEN FOUND?
FUN FACT: The first dinosaur bone ever to be described in scientific literature, possibly from Megalosaurus, was recovered from a limestone quarry in Oxfordshire in 1676, while 200 years later the remains of Camptosaurus were found in a brick and tile works near Oxford.
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ABC News
abcnews.go.com › US › new-species-dome-headed-dinosaur-discovered-montana › story
New species of dome-headed dinosaur discovered in Montana - ABC News
October 30, 2025 - A new species of dome-headed dinosaur has been discovered in fossils found in Montana, according to researchers.
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Wikipedia
en.wikipedia.org › wiki › Cretaceous–Paleogene_extinction_event
Cretaceous–Paleogene extinction event
5 days ago - The results of this study, which were based on estimated real global biodiversity, showed that between 628 and 1,078 non-avian dinosaur species were alive at the end of the Cretaceous and underwent sudden extinction after the Cretaceous–Paleogene ...
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Live Science
livescience.com › animals › extinct species › dinosaurs
Gigantic dinosaur with 'claws like hedge trimmers' found with croc leg still in its jaws in Argentina | Live Science
September 23, 2025 - dinosaur king of South America. This newly discovered top predator, named Joaquinraptor casali, was some 23 feet (7 metres) long and was a fast-moving hunter with powerful "claws like hedge trimmers."