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    Top 20 Largest Theropods

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    I Meme Everything

    Nov-22-2018 9:37 AM

    Yeah...I'm doing another largest theropods list. Happy Thanksgiving. Credit to Franoys on the Theropoda Discord server for providing the mass estimates.


    20. Gorgosaurus libratus

    Image result for gorgosaurus

    Length: 9.2 meters

    Mass: 3050 kg

    Gorgosaurus is a fairly well-known Tyrannosaur from Late Cretaceous North America. It's a sleek, slender animal more akin to Albertosaurus than say, Tyrannosaurus.


    19. Chilantaisaurus tashuikouensis

    Image result for chilantaisaurus

    Length: 10.6 meters

    Mass: 3207 kg

    This is one of the most obscure theropods from China. It's a Neovenatorid, one of the stranger families of dinosaurs. It's still relatively mysterious, so its position could change on a future list like this.


    18. Suchomimus tenerensis

    Succamimoose by CoelurosaurianArtist

    Length: 11.4 meters

    Mass: 3295 kg

    Next up is, unsurprisingly, a Spinosaurid. Suchomimus to be exact. It's somewhat famous, being represented in the Jurassic Park franchise. However, it's dwarfed by its much larger and more famous cousin.


    17. Torvosaurus tanneri

    Image result for torvosaurus tanneri

    Length: 10.6 meters

    Mass: 3500 kg

    Next up is a North American theropod, Torvosaurus tanneri. Surprisingly, it's larger than the famous Allosaurus fragilis, but it's far from the largest theropod.


    16. Bistahieversor sealeyi

    Image result for bistahieversor

    Length: 9.84 meters

    Mass: 3675 kg

    Next up is a Tyrannosaur from New Mexico. It's very closely related to Lythronax, which doesn't get a spot on this list.


    15. Siats meekerorum

    Image result for siats meekerorum

    Length: 10.4 meters

    Mass: 3822 kg

    Before the Tyrannosaurs, this Carcharodontosaurid was the alpha male. The holotype, which wasn't fully grown, was reportedly comparable in size to giants like Saurophaganax and Acrocanthosaurus.


    14. Daspletosaurus sp.

    Image result for daspletosaurus horneri

    Length: 10.1 meters

    Mass: 3939 kg

    This spot is taken by the direct ancestor of T.rex, though it's nowhere near as large as its descendant. It's still larger than its contemporary Gorgosaurus and was likely the apex predator of its environment.


    13. Saurophaganax maximus

    Allosaurus but bigger by IMemeEverything

    Length: 10.8 meters

    Mass: 4110 kg

    Here's the bully of the Jurassic, the largest predator from the Morrison Formation. Some scientists debate its validity, as it's very similar to Allosaurus. However, it has enough differences to be named as a separate genus.


    12. Zhuchengtyrannus magnus

    Image result for zhuchengtyrannus

    Length: 10.08 meters

    Mass: 4224 kg

    Here's yet another Tyrannosaur, but this one's from Asia. Zhuchengtyrannus is mysterious because of a small specimen sample size, but according to David Hone, an incomplete dorsal from it is comparable to the largest in Sue. Its position could rise in the future.


    11. Tarbosaurus bataar

    Image result for tarbosaurus

    Length: 10.57 meters

    Mass: 4870 kg

    In close range to Zhuchengtyrannus is Tarbosaurus, one of the largest theropods from Asia. It's known from more complete remains, so its placement on this list is more certain.


    10. Veterupristisaurus milneri

    Image result for veterupristisaurus

    Length: 10.98 meters

    Mass: 4984 kg

    Hitting the top ten is one of the earliest Carcharodontosaurids. It's actually known from Late Jurassic Tanzania, making it very early. Of course, it's not as big as its later and more massive cousins.


    9. Therizinosaurus cheloniformis

    The giant claw by IMemeEverything

    Length: 9 meters

    Mass: 5011 kg

    Finally, there's a megatheropod on this list. A contemporary of TarbosaurusTherizinosaurus is far stranger. It has the largest claws of any dinosaur, and though most of its skeleton hasn't been uncovered, we've been able to reconstruct it based on its North American relative Nothronychus.


    8. Acrocanthosaurus atokensis

    Image result for acrocanthosaurus

    Length: 11.55 meters

    Mass: 5800 kg

    In eighth place is the second-largest theropod from North America. It's one of the more basal Carcharodontosaurids and is known from the same fossil beds that procured Siats.


    7. Carcharodontosaurus saharicus

    Length: 12.02 meters

    Mass: 6325 kg

    Yeah, as surprising as it seems, Carcharodontosaurus doesn't reach the top 5. It's still massive, weighing over six tonnes. Of course, it could likely grow larger because its sample size is small.


    6. Tyrannotitan chubutensis

    Length: 11.75 meters

    Mass: 6400 kg

    Tyrannotitan is the bulkiest Carcharodontosaurid in proportion to its length. However, other genera are larger and longer. Still, the Tyrant Titan is massive and has one of the coolest names of any dinosaur.


    5. Mapusaurus roseae

    Image result for mapusaurus planet dinosaur

    Length: 12.23 meters

    Mass: 6804 kg

    Mapusaurus is one of the trickiest theropods to estimate, so I scaled from its close cousin Giganotosaurus to arrive at a 6.8-tonne mass.


    4. Giganotosaurus carolinii

    Length: 12.25 meters

    Mass: 6838 kg

    Scott Hartman's 8200 kg estimate for this guy was incorrect, reducing its size. It's still one of the largest theropods, but not the largest. Hopefully, more complete remains are found.


    3. Deinocheirus mirificus

    Image result for deinocheirus

    Length: 11.80 meters

    Mass: 6874 kg

    2 and 3 are extremely, extremely close. But nonetheless, in third place is Deinocheirus. It's the largest Asian theropod, and it's a strange animal. Of course, it's also massive.


    2. Spinosaurus aegyptiacus

    Image result for spinosaurus 2018

    Length: 15.06 meters

    Mass: 6876 kg

    Ah, yes, good ol' Spinosaurus aegyptiacus. The Egyptian Spined Lizard was estimated at 7557 kg, but Franoys redid his GDI analysis of the largest specimen, MSNM V 4047, and arrived at about 6.9 tonnes. It's still in second place, but 7557 kg is still plausible for this genus.


    1. Tyrannosaurus rex

    Length: 12.35 meters

    Mass: 8828 kg

    Is anyone really surprised? Somehow, the Tyrant Lizard King manages to keep its crown as the largest land predator of all time. Scott Hartman's 8400 kg estimate for the largest specimen, FMNH PR 2081 "Sue" was too conservative, and Hutchinson's 9500 is too high. Franoys' 8.8 tonne estimate is the most reliable one we have. And even then, smaller specimens like CM 9380 are still larger than the next largest on this list. It's nearly two tonnes heavier than Spinosaurus. This animal leaves my jaw upon the floor.

    "Part of the journey is the end..."

    10 Responses to Top 20 Largest Theropods


    Nov-22-2018 10:38 AM

    Nice list, my top five would probably go like this

    5. Giganotosaurus

    4. Acrocanthosaurus

    3. Spinosaurus

    2. Carcharodontosaurus

    1. Tyrannosaurus 

    Godzilla... Truly a God incarnate.

    Emperor GorillaGodzilla

    Nov-22-2018 1:34 PM

    Yep nice list.

    Whatever it takes.


    Nov-23-2018 10:56 PM

    All hail the King and Queen of all Predatory dinosaurs, Tyrannosaurus rex

    I Meme Everything

    Nov-24-2018 3:30 PM

    UZ is that top five you provided your list of favorites?

    "Part of the journey is the end..."


    Nov-24-2018 4:06 PM


    Godzilla... Truly a God incarnate.

    I Meme Everything

    Nov-24-2018 4:26 PM

    ^Cool, my favorites are

    5. Mapusaurus

    4. Daspletosaurus

    3. Therizinosaurus

    2. Spinosaurus

    1. Tyrannosaurus

    "Part of the journey is the end..."

    Kamoebas V.6

    Aug-24-2019 11:41 AM

    Do you know that Mapusaurus is actually the largest one,i have a book about Mapusaurus and other dinos.

    Kamoebas V.6

    Aug-24-2019 11:44 AM

    For the average it said that it had 14 meters in length,so the largest specimen will be larger than a T-Rex,anyways good list.


    Aug-27-2019 4:46 PM

    The closest relative to Tyrannosaurs rex, as far as we know, is Tarbosaurus bataar.  Therefore, Daspletosaurus is not the direct ancestor to T.rex.


    Aug-27-2019 5:52 PM


    Well, it's not exactly conclusive, and is debatable. but I agree with you.

    If people weren't lazy, we wouldn't try to be efficient. If we weren't efficient, we'd never get anything done.

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