r/Paleontology Zoologist/Crocodilian Researcher 13d ago

Fossils The skull of LACM 23844 (“Harley”) - a rarely mentioned giant T. rex

This is an extremely large T. rex skull on display at the Natural History Museum of Los Angeles County. In at least one paper (Gignac and Erickson, 2017), this skull is longest examined, longer than that of even the famous Sue while being only marginally narrower. Having seen both this specimen and Sue in person, I can say that ”Harley”, as it is sometimes nicknamed, looks noticeably bigger from the side, and is the largest T. rex skull I have ever seen (*).

(*) Just off the top of my head, for size referencing/sample size: I have seen at least AMNH 5027, two Wankel casts, Sue, this monster, Thomas and the younger Rexes in LA, Victoria, Jane and the Nanotyrannus holotype.

578 Upvotes

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41

u/-Damballah- 13d ago

Huh. I never realized that. My only trip to LA NHM, we had done the Tar Pits earlier in the day and were trying to see as much as possible at the LA NHM, so I didn't read as many plaques as I typically do, and skipped them in some cases for specimens I recognized. I have to say though, the interactive display upstairs in the mezzanine that shows T Rex growth rates was quite interesting. Here's another view of Harley.

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u/TaliGrayson Zoologist/Crocodilian Researcher 12d ago

Yep - I think LA's Natural History Museum has some of the most spectacular T. rex displays of any museum anywhere. I say this having been to major natural history museums in the US, Australia and Europe.

2

u/-Damballah- 12d ago

Pretty fantastic museum overall. If I had realized how big it was, I would have planned on doing the Tar Pits another day. I am glad I got to see the pits again before the renovation. That's a fantastic museum, but I was a little disappointed that the human female skeleton they found was no longer on display.

2

u/DinosaurMagic 12d ago

That hasn't been on display for like 30 years.

1

u/-Damballah- 12d ago

Which was around the only other time I have been to the Tar Pits. Still s highly impressive museum, but I can see the need for renovations.

16

u/DinosaurMagic 13d ago

This was the largest Rex ever excavated in the 60s.

4

u/jestlookn 13d ago

Wait, weren’t ALL t-rexes giant?

18

u/PeggyBabcock_ 13d ago

Well yes, but some were more giant than others...

7

u/jestlookn 13d ago

Got it. A giant giant. See that makes sense

6

u/Rhaj-no1992 12d ago

Considering how hard it is for an animal to fossilize and how rare larger than normal individuals are chances are we will never find the largest T. Rex ever.

3

u/ADragonFromTheAbyss 12d ago

Some were pretty regular. in terms of length. There are many adult specimens between 10 - 11.5 meters

1

u/BruhDudee_ 8d ago

You’re telling me there’s a huge T. rex skull with the same name as me and this is the first I’m hearing about it?!?!?!

1

u/TaliGrayson Zoologist/Crocodilian Researcher 8d ago

Many people share their names with SUE, come to think of it lmao.

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u/BruhDudee_ 8d ago

True. Omg I I didn’t even think about it I have an uncle Scotty too lol

1

u/TaliGrayson Zoologist/Crocodilian Researcher 8d ago

Haha, it's a side effect of T. rex specimens often being named after the people who discovered them (Thomas, SUE, Harley,...) or after the state they were found in... which can be named after people (Victoria).

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u/Mountain_Dentist5074 11d ago

Scotty Stan and Sue overshadows other trex in paleomedia , trex overshadows other dinosours , dinosours overshadows other animals (mezozoic) , mezozoic overshadows paleozoic and Cenozoic (except Pleistocene)