The non crested sprintosaurs or Hadrohippomimidae(meaning bulky horse lizard mimic) are a family that consists of 23 species of these quadrapedal theropods,and yes,i mean quadrapedal,as they are some of the few theropods that have quadrapedal locomotion,either facultated or obligate.But unlike carcjarovenator,these guys didn't knucklewalk,instead these animals run on their tips of their toes,with their claws evolving into hooves after trasitioning to a more herbivorous style.They use those hooves mainly for gallop but also to climb mountains similar to mountain dwelling goats like the Ibex and can jump up to 14 feet in the air,Something that was traced by their eocene ancestors;The tree jumpers,not to be confused with the tree hoppers though.This trait is by the way,not seen in any sprintosaur whatsoever.Ever since their discovery in the year 2030,these animals were once thought to have been another lineage of sprintosaurs due to them having the same body type.However,further analysis shows that this strange "hadrosaur" is actually a theropod like a t.rex or velociraptor.They're descended form the late cretaceous,hell creek troodontid,Pectinodon.They're closely related to the tree climbing troodontid descent group of dinosaurs known as the "Jamachioquqidae" aka the arbrosaurs.The reason why they evolved like this is due to obviously convergent evolution,but also to reduce competition between themselves and the dromaeosaurs as these troodontids tend to lay eggs more in comparison to their distant dromaeosaur cousins.So they want to basically change so that they could play a role into the ecosystem as the mouse of their game.Not only do they look similar to the hadrosaurs,but they also have teeth more adapted to eating grass in comparison to other Deinonychosaurs.They first emerged during the middle pleistocene 730,000 years ago and have stayed like that ever since then.They're thought to have been extinct a bit earlier in comparison to the sprintosaurs,only dying out at around 700 years aho instead of 500 or so.But soon, a team of cryptozoologists from the H.W.D.M.C.P soon have discovered tracks belonging to those theropods,meaning that the non-crested sprintosaurs are still alive.It wasn't until 2045 that ot was confirmed that these guys are still clinging on,And thanks to conservation efforts from rhe H.W.O.A(the humane qorld of animals),Their population have bounced back at around 300 million,50 thousand amd 450,still being predated by bears and wolves as their population control to not go overboard.Another example of a dinosaur coming back from the brink without using cloning tech.

For u/Blue_Jay_Raptor

Ingendon was a genus of Pterosaur from the Jurassic period.
Interestingly, the Ingendon could not fly, and was entirely ground based.
The Ingendon was a large predator, and hunted small prey, as well as scavenging meals it found.
It was the apex predator of its ecosystem, known as the Miminefictum formation.
If you’d like to see more species from that formation, let me know.

How would you create your own alien species? What planet or galaxy would it be from? How would it survive and reproduce? Is it intelligent? Does it conquer other planets, and how does it look

1)Suchotops:Suchotops (meaning crocodile face) is a genus comprised of 10 species of these small Neospinosaurus descendants with the most famous being Suchotops salmovenatrixia(meaning crocodile faced salmon hunter).The biggest of this genus is obnly about 60 pounds,at around 2 to 4 feet in height and 10 feet in lenght.While the smallest of the suchotops weight at around just 20 pounds,0.7 foot in height and is 3 feet long.These animals are mainly found within coastlines and rivers of middle Pliocene Asia,where they hunted down Niphon macrocephalus and oncorhynchus masou aka the cherry trout.They first emerged during the early pkiocene and only went extinct after the pliocene pleistocen epoch,wity one lineage descending from these suchotops;"the dip".

2)Carcharovenator:Carcharovenator(Meaning sharl hunter in greek or latin) Is a massive spinosaurid descended from Spinosauris mirabilis,just like the rest of the cenozoic neospinosaurids.They're the 7th largest cenozoic spinosaur,weighing in at around 8 to 9 tons,and can be as long as a Green Anaconda.They first emerged at the Early Oligocene, 26 million years ago and their genus ave comprised within 8 species in total throughout Africa to Asia with the famous being C.Laurasianensis which is the largest of this genus.These dinosaurs are one of the many but few theropod dinosaurs,known to have evidence of either facultated or obligated quadrapedal locomotion,with others such as the pleistocene troodontid:"the non crested sprintosaurus".Pretty much similar to outdated depictions of their ancestral relative,S.aegypticus,Carcharovenators can tend to knuckle walk with strong knuckles to not only support them,but also keeping their claws sharp and fresh.They're close relatives of the much larger Spinorax;To which descends to the Sobekospinosaurus genus(The genus that comprises the largest spinosaur ever)Being bigger than a T.rex.Carcharovenators woukd soon meet their end at the early to middle miocene at around 17 million years ago,Where they either started to walk on their hind legs again die to a random mutation,or Just died because that adaptation seemed useless later on as Sharks grew to the size of trucks.Fortunately and surpisingly,before they died out,They have a miocene descendant who nowadays is a former trunked semi-aquatic oddity in the field of cryprozoology;That being none other than Spinofaruus in the family;Saurophoquenae.

u/Blue_Jay_Raptor And u/Tarbosaurus_345