blaze
Paleo-artist
Posts: 766
|
Post by blaze on Feb 16, 2014 7:44:45 GMT 5
fishI updated the image and the link got broken or something, it's now fixed. What matters is not the amount but the quality of the source, things like height in bipedal position are not mentioned in scientific papers, total length is rarely mentioned too, I only fond a single scientific publication mentioning total length, 5.4m for an skeleton with a 71cm long femur. Weird, I found so many papers after I made the size chart and it wasn't until I found and download a thesis that I got measurements of bigger bones, bummer that I didn't found before the paper you shared, well the thesis in question is De Iuiis (1996), the largest humerus mentioned there is 78cm long as well as the largest femur, the paper you linked has two humerii slightly larger than this, and the specimen referred to M. gallardoi specifically, appears to be the largest reasonably complete skeleton, 79.5cm long humerus and 76.4m femur (total lengths), this measurements are ~22.5% larger than in the specimen I used to make my size chart, I have to rescale it again because I found some inconsistencies but, if a 71cm femur belongs to a 5.4m long individual, then a 76.4cm femur probably belongs to an individual approaching 6m long and maybe close to 4m tall, but this is max size, not average, based on the data on De Iuiis (1996), the specimen I originally used for my size chart is rather average in size.
|
|
|
Post by Infinity Blade on Feb 16, 2014 8:03:46 GMT 5
Megatherium's still dead IMO. It's just too small.
|
|
fish
Junior Member Rank 1
Spaced-out Hatchetfish
Posts: 45
|
Post by fish on Feb 16, 2014 9:11:00 GMT 5
fishI updated the image and the link got broken or something, it's now fixed. What matters is not the amount but the quality of the source, things like height in bipedal position are not mentioned in scientific papers, total length is rarely mentioned too, I only fond a single scientific publication mentioning total length, 5.4m for an skeleton with a 71cm long femur. Weird, I found so many papers after I made the size chart and it wasn't until I found and download a thesis that I got measurements of bigger bones, bummer that I didn't found before the paper you shared, well the thesis in question is De Iuiis (1996), the largest humerus mentioned there is 78cm long as well as the largest femur, the paper you linked has two humerii slightly larger than this, and the specimen referred to M. gallardoi specifically, appears to be the largest reasonably complete skeleton, 79.5cm long humerus and 76.4m femur (total lengths), this measurements are ~22.5% larger than in the specimen I used to make my size chart, I have to rescale it again because I found some inconsistencies but, if a 71cm femur belongs to a 5.4m long individual, then a 76.4cm femur probably belongs to an individual approaching 6m long and maybe close to 4m tall, but this is max size, not average, based on the data on De Iuiis (1996), the specimen I originally used for my size chart is rather average in size. The paper you have gave an average size to Megtherium? On the chart I found, of the few specimens on there, all but one had bone sizes bigger than the Megatherium size you based the comparison off of. So I dont understand why the size would be so low, unless there are a lot more specimens with much smaller bone sizes. Also, age and gender could be a factor between the different sized specimens, though I'm not sure it can be proven.
|
|
blaze
Paleo-artist
Posts: 766
|
Post by blaze on Feb 16, 2014 10:50:53 GMT 5
fishYes, De Iuiis (1996) had a table with minimum and maximum values of several measurements from 31 femora and 13 humerii of Megatherium americanum, the smallest femur was 57cm long and the smallest humerus was 59cm long, the average femur length was 68cm with a standard deviation of 5.5cm and the average humerus length was 68cm with a standard deviation of 5cm. New size chart, I made a quick skeletal based on the better photograph I found and scaled based on the femur instead, this mount is based on an specimen that didn't preserve a humerus so in hindsight it wasn't wise to scale it based on the humerus. My original specimen is 4.7m long and 3.1m tall while the grey outline represents the largest specimens, of the size of the holotype of M. gallardoi, 5.8m long and 3.8m tall.
|
|
|
Post by Infinity Blade on Feb 16, 2014 19:04:25 GMT 5
Megatherium americanum (I guess small one) gets destroyed but Megatherium gallardoi (I guess big one) has high chances of winning and I might lean towards it.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Mar 28, 2018 3:52:17 GMT 5
Maybe a size comparison would be nice.
|
|
|
Post by creature386 on Mar 28, 2018 17:51:09 GMT 5
Was this ironic?
I agree with Ausar.
|
|
|
Post by jhg on Sept 20, 2018 19:55:01 GMT 5
Most epic slap fight ever! I back the sloth though. It could cut the Therizinosaurus’ throat.
|
|
|
Post by dinosauria101 on Feb 10, 2019 0:24:58 GMT 5
I'd say Therizinosaurus wins, it is too big
|
|