Cretaceous Dinosaurs 
19 
Brett and Wheeler (1961 : 69) and Heron and Wheeler (1964: 46) men- 
tioned a portion of a dinosaur leg bone collected at Milepost 49 in the 
base of the Peedee Formation, having evidently been reworked from the 
underlying Black Creek sediments. This bone (UNC 5735, Fig. 8A) is the 
distal half of a very large right humerus, measuring fully 415 mm from the 
condyles to the base of the deltopectoral ridge. The proportions of the 
shaft are similar to those of Hadrosaurus foulkii and Kritosaurus incurvimanus 
Parks (1920: 35, Fig. 9). Reconstructed, the humerus would have been 
about 830 mm long, exceeded in length only by the lambeosaurine 
humerus from Baja California described by Morris (1972). From the 
proportions of other lambeosaurines Morris computed that the Mexican 
hadrosaur would have been about 16.5 m (54 ft.) long. Although com- 
putations of this sort may be possible with lambeosaurines, there is 
evidence that such is not the case with hadrosaurines: an undescribed 
hadrosaurine (AMNH 5465) from the lower Two Medicine Formation of 
Montana has a humerus 765 mm long while its other limb elements are 
the same length as those in a skeleton of Kritosaurus notabilis (AMNH 
5350) that has a humerus only 490 mm long. Because of this variability in 
humerus length within the subfamily Hadrosaurinae, we are not 
prepared to estimate the North Carolina dinosaur’s size, beyond saying 
that the humerus might have come from an individual exceeding 12 m (40 
ft.) in length. The large metatarsal (USNM 5963) described above is 
about the same size as that in the type skeleton of Kritosaurus incurvimanus , 
which has a total length of about 8.2 m (27 ft.). 
In summary, all the hadrosaur material described above appears to 
pertain to the subfamily Hadrosaurinae but none of the bones can be 
identified on the generic level. 
NON-DINOSAURIAN REMAINS 
For the sake of completeness we append here a brief discussion of cer- 
tain specimens from North Carolina that have been cited erroneously in 
the literature as dinosaurian. 
Class MAMMALIA 
Order CETACEA 
Suborder MYSTICETI 
Family BALAENOPTERIDAE 
“Hadrosaurus tripos ” Cope, nomen dubium 
Hadrosaurus tripos Cope, 1869: 192; 1870: 122-I-J; 1875: 40-41, PI. 5, Figs. 
1-la (only). 
Material . — Type, USNM 7190, a large caudal vertebra. Cope’s initial 
publication cited two caudals from the same locality: one “near the thir- 
tieth caudal” with a centrum height of 4.5 in. (USNM 7190) and another, 
