Crocodilus humilis Leidy 1860
| Main Author: | Lambe L. M. |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 1902
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/4583881 |
Daftar Isi:
- Crocodilus humilis, Leidy. 1860. Trans. Amer. Philos. Soc. Extinct Vertebrata from the Judith river and Great Lignite formations of Nebraska, p. 146, pi. 11, figs. 9-19. Teeth of this species are found abundantly iu the rocks of the Belly River series. They are in the form of elongate cones, slightly curved inward, w^ith two angular longitudinal ridges defining the slightly flattened inner side. They are generally quite smooth, but in some specimens, a distinct folding or corrugation of the surface is observed more particularly in the upper half of small and medium sized specimens. Their bases are slightly excavated. The apices generally show signs of wear. I^umerous examples also occur of the low, rounded germ-teeth, figured by Leidy, that have a silky lustre, caused by the presence of minute, close-set, discontinuous ridges in the enamel, converging toward the apex. They are, however, sometimes elongated so as to be moderately pointed above. Belly River series, Red Deer river, 189*7, 1898 and 1901. Teeth of G. humilis had previously been collected, brit not determined, from the isame series of rocks, as follows: Professor John Macoun, Mackay creek, near "Walsh, a station on the line of the Canadian Pacific Railway, east of Irviue, 1880; Dr, Gr. M. Dawson, Belly river, N.W.T. (Nos. 40 and 41), 1881; Mr. T. C. Weston, Ross coulee, near [rvine, 1884, and Irvine coulee, also near Irvine, 1888.
- Published as part of Lambe L. M., 1902, New genera and species from the Belly River Series (mid-Cretaceous), pp. 25-81 in Geological Survey of Canada Contributions to Canadian Palaeontology 3 on page 47, DOI: 10.5281/zenodo.3233762