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It may have weighed only 2 1/2 pounds and stood about 6 inches tall, but the discovery of a half mammal, half reptile’s skull in eastern Utah has huge implications for geologic timelines.
The skull of the new species, Cifelliodon wahkarmoosuch, came from a snout-bearing, catlike animal with buck teeth and molars for crushing plants.
“Based on the unlikely discovery of this near-complete fossil cranium, we now recognize a new, cosmopolitan group of early mammal relatives,” said Adam Huttenlocker, lead author of the study and assistant professor of clinical integrative anatomical sciences at the Keck School of Medicine of the University of Southern California. The study was published in the journal Nature on May 16 and updates the understanding of how mammals evolved and dispersed across major continents during the age of dinosaurs. This creature, although it was covered in hair and suckled its young, laid eggs like the modern-day platypus.
The fossil discovery emphasizes that these type of animals and some other vertebrate groups existed globally during the Jurassic-Cretaceous transition, meaning the corridors for migration via Pangean landmasses remained intact into the Early Cretaceous.
originally posted by: SeaWorthy
Cousin.
originally posted by: ShadowLink
a reply to: SeaWorthy
So the only part that looks reptilian to me is its feet, although covered in hair they are shaped similar to some reptiles.
The only thing the article says about the animal being related to reptiles is the fact that it laid eggs.
Platypus and Echidna lay eggs but are not considered "half reptile". I fail to understand the reason for the half reptile classification the article is claiming.
Can anyone explain this?
originally posted by: Jonjonj
Is it like a marsupial but opposite or what?
Marsupials are just plain weird.
I shall have a read. Thanks!
The discovery of the fossil likely means that the Pangaea split likely happened more recently than scientists thought. The finding also suggests that a group of reptile-like mammals bridging the transition between reptiles and mammals saw a "burst of evolution" in several continents.
I was wondering how they knew it lay eggs at all when all they discovered was a skull? Then I noticed it was the keck school of medicine so maybe their biased.
originally posted by: SeaWorthy
originally posted by: Jonjonj
Is it like a marsupial but opposite or what?
Marsupials are just plain weird.
I shall have a read. Thanks!
So this find means the earth was a whole (Panthalassaia)and did not break up for much longer than previously thought, pretty important find. Anyway who knows may be the beginning of disclosure about the mythological lizard people world wide.
originally posted by: Harte
originally posted by: SeaWorthy
originally posted by: Jonjonj
Is it like a marsupial but opposite or what?
Marsupials are just plain weird.
I shall have a read. Thanks!
So this find means the earth was a whole (Panthalassaia)and did not break up for much longer than previously thought, pretty important find. Anyway who knows may be the beginning of disclosure about the mythological lizard people world wide.
No, it means that corridors for migrations remained, not that the land masses weren't broken up.
And if you're talking about land, use the term "Pangea." "Pantalassa" was the name of the ocean surrounding Pangea.
Harte
originally posted by: Harte
originally posted by: SeaWorthy
originally posted by: Jonjonj
Is it like a marsupial but opposite or what?
Marsupials are just plain weird.
I shall have a read. Thanks!
So this find means the earth was a whole (Panthalassaia)and did not break up for much longer than previously thought, pretty important find. Anyway who knows may be the beginning of disclosure about the mythological lizard people world wide.
No, it means that corridors for migrations remained, not that the land masses weren't broken up.
And if you're talking about land, use the term "Pangea." "Pantalassa" was the name of the ocean surrounding Pangea.
Harte
The discovery of the fossil likely means that thePangaea split likely happened more recently than scientists thought. The finding also suggests that a group of reptile-like mammals bridging the transition between reptiles and mammals saw a "burst of evolution" in several continents.
A small, furry animal with a blunt snout and beady eyes scuttled across what is now eastern Utah some 130 million years ago. And while the wee beast was surely unusual and fascinating, there's one thing it was definitely not: half-mammal and half-reptile.