You can support the Dinosaur Toy Forum by making dino-purchases through these links to Ebay and Amazon. Disclaimer: these and other links to Ebay.com and Amazon.com on the Dinosaur Toy Forum are often affiliate links, so when you make purchases through them we may make a commission.

avatar_Katieraptor

Allosaurus Size?

Started by Katieraptor, January 21, 2018, 06:52:38 PM

Previous topic - Next topic
Print
Go Down Pages1
User actions

Katieraptor

January 21, 2018, 06:52:38 PM
Sorry for posting so many Allosaur related topics...

So, I just realized that of the four-ish currently recognized species, A.fragilis, A.europaeus, A.amplus and A.lucasi, I only know the relatively accepted size of fragilis (25-30 feet). What about the others? I believe europaeus is suggested to be slightly smaller, right?

Actually I know very, very little about amplus or lucasi at all, and not too much about europaeus.

Is there any place other than wikipedia to reliably look for this stuff?
What I love about Allosaurus is that it lived an extremely violent life that was rife with broken bones, cuts, scrapes, infections, sprains, and yet it just kept on truckin.

My Art

stargatedalek

#1
January 21, 2018, 08:02:08 PM
There are also a few particularly small A. fragilis that could realistically represent a separate species, IIRC "Big Al" was one of them. If what you're going for is size variance it is completely within reason to use A. maximus, as Saurophaganax has very little active support in the scientific community (albeit not much opposition either, as it goes largely ignored) and frankly nothing about it justifies being an entire genus, regardless of how many fans the name Saurophaganax may have.

Katieraptor

#2
January 21, 2018, 09:58:35 PM Last Edit: January 21, 2018, 09:58:53 PM by Katieraptor
I wasn't really asking about size variance. What I was more asking about was how big the other species of Allosaurus besides A.maximus (if we're using that, which I tend to agree with you on) and A.fragilis are generally believed to have gotten fully grown.
What I love about Allosaurus is that it lived an extremely violent life that was rife with broken bones, cuts, scrapes, infections, sprains, and yet it just kept on truckin.

My Art

spinosaurus1

#3
January 21, 2018, 11:49:51 PM

Katieraptor

#4
January 22, 2018, 12:18:38 AM
Quote from: spinosaurus1 on January 21, 2018, 11:49:51 PM


credit to this person
https://randomdinos.deviantart.com/

That's pretty much exactly what I was looking for! Thank you!
What I love about Allosaurus is that it lived an extremely violent life that was rife with broken bones, cuts, scrapes, infections, sprains, and yet it just kept on truckin.

My Art

Halichoeres

#5
January 22, 2018, 05:43:45 PM
Lol @ that human silhouette: "Feets don't fail me now!"
In the kingdom of the blind, better take public transit. Well, in the kingdom of the sighted, too, really--almost everyone is a terrible driver.

My attempt to find the best toy of every species

My trade/sale/wishlist thread

Sometimes I draw pictures

Huskies

#6
January 23, 2018, 07:42:09 PM
To me it is more like" Legs do your stuff." ;D
Amazon ad:

Katieraptor

#7
January 23, 2018, 07:49:18 PM
Quote from: Huskies on January 23, 2018, 07:42:09 PM
To me it is more like" Legs do your stuff." ;D

Time to go!
What I love about Allosaurus is that it lived an extremely violent life that was rife with broken bones, cuts, scrapes, infections, sprains, and yet it just kept on truckin.

My Art

Reptilia

#8
January 23, 2018, 08:27:12 PM Last Edit: January 23, 2018, 08:27:33 PM by Reptilia
To which species correspond each number in the picture above? Is the biggest supposed to represent Saurophaganax (or A. maximus)?

Katieraptor

#9
January 23, 2018, 08:32:58 PM
Quote from: Reptilia on January 23, 2018, 08:27:12 PM
To which species correspond each number in the picture above? Is the biggest supposed to represent Saurophaganax (or A. maximus)?

If you follow the link to the DA, it tells you.

Though apparently I'm finding out now that we considered A.fragilis got pretty damn large.
What I love about Allosaurus is that it lived an extremely violent life that was rife with broken bones, cuts, scrapes, infections, sprains, and yet it just kept on truckin.

My Art

Reptilia

#10
January 23, 2018, 08:41:43 PM Last Edit: January 23, 2018, 08:42:24 PM by Reptilia
Right, here it is:

The most common theropod of the Morrison, and probably the most famous Jurassic carnivore, comes in a wide range of sizes; these here are just a handful of the more well-known specimens (to avoid specimen confusion, note that the number for each Allo is next to the foot that's planted in the ground). #1 is a juvenile possibly belonging to A.jimmadseni for which not much of a description is available.

#2-DINO 11541: The proposed holotype of A.jimmadseni. At about 6.4 meters and 830 kg, based on Big Al's GDI, it's not particularly impressive or relevant to the rest of the chart... but people wanted me to add it anyway, so I did.

#3-USNM 4734: Among the most complete specimens ever found for the genus, this 7.6-meter (25ft) roughly 1.4-tonne specimen of A.fragilis provides the reference from which most of the others were scaled.

#4-MOR 693: Also known as Big Al, probably the most famous Allosaurus (jimmadseni?) thanks to its tragic speculated life history, as depicted in the Walking with Dinosaurs special of the same name. Being 7.8 meters (25.6ft) long and GDIed at one and a half tonnes, or half again as much as a male bison, it is indeed quite big, but doesn't compare to other individuals on this list.

#5-DINO 2560: Previously UUVP 6000, this specimen is what most people have in mind when they think of Allosaurus atrox, although it is not the intended holotype for that species (the latter is a lot more fragmentary). GDI provided around 2.1 tonnes, at a length of 8.6 meters (28.2ft).

#6-AMNH 290: The specimen most people believe represents the maximum size of A.fragilis, which, based on the femur and tibia, is approaching 9.5m (31.2ft) in length, with a weight of 2.8 tonnes. AMNH 257 is of similar size, and AMNH 680/630 is slightly larger, closer to 9.9 meters in length and 3 tonnes in weight.

#7-AMNH 5767: Originally described as Epanterias amplexus, this specimen is extremely fragmentary, with its being assigned to a new genus being extremely doubtful at best. Opinions tend to vary between whether this 10.1-meter (33ft), 3.3-tonne specimen represents a new species (A.amplexus) or is just another large fragilis.

#8-NMMNH P-26083: Originally Saurophaganax maximus, this specimen is considered by Mortimer to belong to Allosaurus fragilis based on a number of traits of the femur and tibia. Either way, it is massive - at 10.8 meters, it almost reaches four tonnes, and is figured as the largest A.fragilis in the Stem-Bird Files entry, for good reason.

#9-OMNH 1370, OMNH 1708, OMNH 1935: Like with Epanterias, Saurophaganax maximus is a genus whose legitimacy is doubtful. While there is no real evidence of Saurophaganax reaching sizes that rival the largest Cretaceous theropods (the original 14m estimate was based on assigning an 80cm femur to an Allosaurus almost 12 meters long, when DINO 2560 itself has a larger femur than that) it is still likely to be the largest predator in the Morrison, just edging out NMMNH P-26083, at approximately 11 meters (36ft) in length and 4.1 tonnes.

https://randomdinos.deviantart.com/art/A-Lot-of-Different-Lizards-691135674

Neosodon

#11
January 25, 2018, 08:23:32 AM
Mark Loewen who specializes in Allosaurus did a presentation at my local museum last week. He said he was most certain Saurophagonax was an Allosaurus but I don't remember him saying anything about maximum size estimates.

"3,000 km to the south, the massive comet crashes into Earth. The light from the impact fades in silence. Then the shock waves arrive. Next comes the blast front. Finally a rain of molten rock starts to fall out of the darkening sky - this is the end of the age of the dinosaurs. The Comet struck the Gulf of Mexico with the force of 10 billion Hiroshima bombs. And with the catastrophic climate changes that followed 65% of all life died out. It took millions of years for the earth to recover but when it did the giant dinosaurs were gone - never to return." - WWD

Katieraptor

#12
January 25, 2018, 01:46:45 PM
Quote from: Neosodon on January 25, 2018, 08:23:32 AM
Mark Loewen who specializes in Allosaurus did a presentation at my local museum last week. He said he was most certain Saurophagonax was an Allosaurus but I don't remember him saying anything about maximum size estimates.

As in S.maximus should be A.maximus, or as in S.maximus is a large A.fragilis?
What I love about Allosaurus is that it lived an extremely violent life that was rife with broken bones, cuts, scrapes, infections, sprains, and yet it just kept on truckin.

My Art

stargatedalek

#13
January 25, 2018, 02:41:14 PM
Quote from: Katieraptor on January 25, 2018, 01:46:45 PM
Quote from: Neosodon on January 25, 2018, 08:23:32 AM
Mark Loewen who specializes in Allosaurus did a presentation at my local museum last week. He said he was most certain Saurophagonax was an Allosaurus but I don't remember him saying anything about maximum size estimates.

As in S.maximus should be A.maximus, or as in S.maximus is a large A.fragilis?
The thing there is that if A. maximus is A. fragilis that presents it's own issue in that it could push for something to be done about the lumping into A. fragilis (which probably already contains 2 or 3 distinct species as-is). Another huge specimen in A. fragilis would probably force something to get split.

Katieraptor

#14
January 25, 2018, 03:36:34 PM Last Edit: January 25, 2018, 03:40:12 PM by Patrx
Quote from: stargatedalek on January 25, 2018, 02:41:14 PM
Quote from: Katieraptor on January 25, 2018, 01:46:45 PM
Quote from: Neosodon on January 25, 2018, 08:23:32 AM
Mark Loewen who specializes in Allosaurus did a presentation at my local museum last week. He said he was most certain Saurophagonax was an Allosaurus but I don't remember him saying anything about maximum size estimates.

As in S.maximus should be A.maximus, or as in S.maximus is a large A.fragilis?
The thing there is that if A. maximus is A. fragilis that presents it's own issue in that it could push for something to be done about the lumping into A. fragilis (which probably already contains 2 or 3 distinct species as-is). Another huge specimen in A. fragilis would probably force something to get split.

Allosaurus taxonomy is a mess honestly.

One of my dreams would be to examine the holotypes of every species we think MIGHT have existed, however dubious, and try and come to a conclusion.
What I love about Allosaurus is that it lived an extremely violent life that was rife with broken bones, cuts, scrapes, infections, sprains, and yet it just kept on truckin.

My Art

Neosodon

#15
January 25, 2018, 07:43:20 PM
Quote from: Katieraptor on January 25, 2018, 01:46:45 PM
Quote from: Neosodon on January 25, 2018, 08:23:32 AM
Mark Loewen who specializes in Allosaurus did a presentation at my local museum last week. He said he was most certain Saurophagonax was an Allosaurus but I don't remember him saying anything about maximum size estimates.

As in S.maximus should be A.maximus, or as in S.maximus is a large A.fragilis?
Unfortunately I didn't remember him specifying that.

"3,000 km to the south, the massive comet crashes into Earth. The light from the impact fades in silence. Then the shock waves arrive. Next comes the blast front. Finally a rain of molten rock starts to fall out of the darkening sky - this is the end of the age of the dinosaurs. The Comet struck the Gulf of Mexico with the force of 10 billion Hiroshima bombs. And with the catastrophic climate changes that followed 65% of all life died out. It took millions of years for the earth to recover but when it did the giant dinosaurs were gone - never to return." - WWD

You can support the Dinosaur Toy Forum by making dino-purchases through these links to Ebay and Amazon. Disclaimer: these and other links to Ebay.com and Amazon.com on the Dinosaur Toy Forum are often affiliate links, so when you make purchases through them we may make a commission.

Print
Go Up Pages1
User actions