Table 1 Proximodistal length and proximal and midshaft mediolateral width (mm) of the humerus of the holotype of Notocolossus gonzalezparejasi (UNCUYO-LD 301) compared to those of other titanosaurian sauropods, including other gigantic species.

From: A gigantic new dinosaur from Argentina and the evolution of the sauropod hind foot

Species

Specimen

Length

Width, proximal

Width, midshaft

PHR

Source(s)

Notocolossus gonzalezparejasi

UNCUYO-LD 301

1760

720

250

2.88

this paper

Paralititan stromeri

CGM 81119

1690

562

234

2.40

pers. obs.

Titanosauria indet.

MMCH NA

1660

NA

NA

—

61

Dreadnoughtus schrani

MPM-PV 1156

1600

740

320

2.31

4

Futalognkosaurus dukei

MUCPv-323

1560

600

250

2.40

17; pers. obs.

Alamosaurus sanjuanensis

TMM 41541-1

1503

NA

NA

—

62

Alamosaurus sanjuanensis

USNM 15560

1360

NA

230

—

54

Mendozasaurus neguyelap

IANIGLA-PV 069

1060

350

145

2.41

9

Opisthocoelicaudia skarzynskii

ZPAL MgD-I/48

1000a

540a

220a

2.45

18

Epachthosaurus sciuttoi

UNPSJB-PV 920

910a

310a

163a

1.90

22

Rapetosaurus krausei

FMNH PR 2209

524

203

86

2.36

13

  1. (See Supplementary Table S1 for additional measurements of the Notocolossus humerus.) Specimens are listed by decreasing humeral length. The Notocolossus humerus is the longest yet reported for Titanosauria and also exhibits the greatest Proximal Humeral Robusticity (i.e., ratio of proximal to midshaft width) value known within this sauropod clade. Abbreviations: NA, not available (i.e., not preserved or not reported); PHR, Proximal Humeral Robusticity. Institutional abbreviations see Supplementary Information. a = measurement averaged from left and right elements of specimen in question; — = calculation not possible based on available data.
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