可以科普一下巴塔哥泰坦龙吗，没什么概念，一直对他的各方面很模糊

楼主请问有全文最前面两张一众蜥脚龙对比图的原图吗

最近看到的一张具有体型区分特征的对比图

我觉得还是阿根廷最大。

另外一张可能是古王paleo-king的新对比图

The largest dinosaur in terms of mass and volume is probably some sort of titanosaur. As of now.....
Here's how the biggest titanosaurs rank out in first-last place:
1. Tie between Alamosaurus (referred Mexican fibula + Fowler & Sullivan's neck centrum) and Puertasaurus (1 cervical, 1 dorsal, 2 unpublished caudals). Both of these animals were around 120+ ft. long and probably 100 tons.
2. Tie between Argentinosaurus and the "Chubut Monster". Both of these animals were probably pushing 110+ ft. long and 80-90 tons
3. Tie between Ruyangosaurus (cervical rib, anterior and posterior dorsals, additional unpublished dorsals, dorsal rib, upper femur, tibia), Notocolossus (dorsal and caudal vertebrae, foot, and limb elements) and "Argyrosaurus" (referred femur FMNH 13018) - probably between 75-90 tons. Ruyangosaurus may have gotten longer than 100 ft., Notocolossus and "Argyrosaurus" were probably not as long but still huge at 90+ ft.
4. Tie between Dreadnoughtus (majority of skeleton) and Paralititan (partial sacrals, 2 caudals, humerus, and shoulder and arm fragments) - both are around 80-90 ft. long and 65-70 tons (no, I do NOT buy the wimpy shrinkwrapped GSP estimates of 20 tons for Dreadnoughtus - he never accounted for crushed ribs and erosion, let alone a REALISTIC amount of soft tissue)
5. Tie between Futalognkosaurus (much of skeleton) and "Antarctosaurus" giganteus (2 femurs, pubis fragments, other random bits) - both at around 90ft. long and 65 tons. Either one of these animals could switch places with 4th place, it's a very close call. There was a bombed-to-dust centrum from "Aegyptosaurus sp" which may also have been a possible contender.
As for the biggest non-titanosaur Somphospondyli:
1. "Huanghetitan" ruyangensis (ribs, sacrum, caudals, unpublished cervicals) - 90+ ft. and 70-80 tons?
2. The "French Monster" (femur, caudals, toe bones and other assorted parts) - 100+ ft. and 65-75 tons? Gracile Paluxysaurus-morph Chubutisaurid by the looks of things. Possibly tied with Sauroposeidon at 110ft. and 65 tons.
2. Yunmenglong ruyangensis (large part of the skeleton) - 100+ ft. and 60 tons?
3. Daxiatitan binglingi (nearly complete cervical and dorsal series, sacrum and ilia, femur, scapula, isolated caudal, etc.) - 95 ft. and 50-55 tons?
4. Huanghetitan liujiaxiaensis (scapula, coracoid, sacrum, caudals etc. possibly some unpublished cervicals and dorsals) - 60 ft. and 30 tons? (hard to tell since the museum mounts appear to be largely speculative)
Largest brachiosaurs:
1. Tie between "Brachiosaurus" nougaredi and Breviparopus (if either of them are indeed brachiosaurs). Both around 120ft. long and 75+ tons?
2. Fusuisaurus zhaoi (fragments of ribs, hips, femur and first 3 caudals) - 100ft. long and 70 tons?
2. Brachiosaurus sp. (Potter Creek specimen) - 95ft. long and 60+ tons?
3. Abydosaurus macintoshi (referred adult ribs) - 95ft. long and 55+ tons?
3. Giraffatitan (HMN XV2) - 85-90ft. long and 50-55 tons?
4. Tie between "Ultrasauros" (BYU scapulacoracoid, referred partial scapula and dorsal), Brachiosaurus alithorax (holotype and referred specimens), and "The Archbishop" (majority of skeleton) - 80-85ft. long and 40 tons?
5. Lapparentosaurus (Lydekker's giant caudals) - 79ft. long and 35 tons?
6. Lusotitan (femur, tibia, fragments of hips, dorsals, ribs, caudals, fibula, humeri, scapula) - 72ft. long and 30+ tons?
Largest mamenchisaurs:
1. M. sinocanadorum (116ft. long and 70 tons?)
2. Chuangjiesaurus (90ft. long and 50 tons?)
3. M. jingyanensis (85-90ft. long and 45 tons?)
4. Hudiesaurus sinojapanorum (80+ft. long and 35-40 tons?)
5. M. anyuensis?????
6. "Omeisaurus" jiaoi (80ft. long, 20 tons?)
Largest Diplodocoids:
1. "Amphicoelias" fragillimus (as per Zach Armstrong's latest reconstruction, most likely a basal rebbachisaur-like diplodocoid at 95ft. long and 55+ tons - a far cry from previous estimates using Diplodocus-like proportions) - may be similar in size to Parabrontopodus distercii.
2. Tie between Supersaurus (majority of skeleton from multiple specimens) - 120ft. long and 50 tons and Apatosaurus ajax (Oklahoma specimen) - at least 95ft. long and 45 tons
3. Probably some sort of African barosaurine, Tornieria sp. or other.... who knows lol.
And then of course with the really basal sauropods you have Turiasaurus, which some reports overhyped as "the biggest dinosaur" and for some reason people still like to believe it was some kind of supergiant - yet it lags far behind most of the animals on this list, at 70-80ft. and MAYBE 30 tons (like most basal sauropods, it's relatively lightly built and most of its length is tail). Its size has been greatly exaggerated and basically it just looks like an oversized Camarasaurus or Jobaria with a crazy-long tail attached. Turiasaurus may be the biggest turiasaurid (a family that has only a handful of known species anyway), but that's the only place where it holds any kind of record. All of the major neosauropod groups (see above) have species that easily outclass Turiasaurus.
古皇那个

感觉蜥脚类恐龙还是很有潜力的，才发现这点，就有这么多大个体的

分科也没波塞冬？

近来D站绝大多数阿根廷龙的复原都是以randomdinos的版本为基础，巨像龙-隆柯龙类划分目前占了上风。

D站reminegrest画的这个版本易碎极巨龙比较接近常见的雷巴齐斯龙，全长38米，大体上重量会和传说中的37米迷惑龙一个级别，即100吨出头。保罗最新论文里给的易碎极巨龙就是35-40米，80-120吨甚至更大。

之前跟博士在群里讨论过保罗的那一句论述，即前面提到的两个要点之2：易碎极巨龙目前还是可能被低估。因为背椎-荐椎系列/后背椎高度比为3到3.5，这意味着背椎-荐椎系列有可能达到7.7至9米长，远远大于目前最大的泰坦龙。我在翻译的时候写的拗口了些，其实就是背椎-荐椎全长达到7.7至9米，这决定了易碎极巨龙的躯干主体长度。而雷巴齐斯龙类本身躯干比较高，那么又长又高的躯干，即便宽度比例不及泰坦龙类，体积和体重依然会极其惊人。
综合这么多复原和论述看下来，易碎极巨龙最有可能的形态，和最早的版本差别不会太大。为什么呢？基础雷巴齐斯龙的分类，决定了易碎极巨龙尾巴不会太短，比例上接近了鞭尾类。SpinoinWonderland又论证过，体型巨大的蜥脚类需要较大的进食范围，因此脖子比例也应该大于雷巴齐斯龙类。保罗的估值里头，躯干长度还有进一步提高的潜力。那么有可能易碎极巨龙对比旧版本复原，在比例上，躯干拉高拉长一些，脖子差不多，尾巴也是接近或者稍微缩短。由于旧复原体重过于地坑（60米梁龙应该不止122吨），新复原体重在矫正之后很可能并不低于旧版本，即122吨以上。

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