Ankylosaurs —

Hunt, A. P. & Lucas, S. G., 1992, Stratigraphy, paleontology and age of the Fruitland and Kirtland Formations (upper Cretaceous), San Juan Basin, New Mexico, New Mexico Geological Society, New Mexico Geological Society 43 rd Annual Fall Field Conference Guidebook, pp. 217-239 : 228

publication ID

https://doi.org/10.5281/zenodo.3614972

DOI

https://doi.org/10.5281/zenodo.4420211

persistent identifier

https://treatment.plazi.org/id/794487B6-D624-8613-FF45-FAF1FF02FA79

treatment provided by

Jeremy

scientific name

Ankylosaurs —
status

 

Ankylosaurs —

Several localities in the Fruitland and Kirtland yield nodosaurid scutes. Keeled scutes of nodosaurids can be distinguished from ankylosaurids in that ankylosaurid scutes are commonly excavated on their medial surface and thus are thin ( Coombs and Maryanska, 1990). In contrast, nodosaurid scutes tend to be flat or only slightly cupped on their medial surface ( Coombs and Maryanska, 1990). NMMNH P-20880 ( Fig. 8 View FIGURE K-L) represents the first specimens of a nodosaurid reported from the Fruitland Formation. These specimens are thick, keeled plates with only slightly concave medial surfaces. NMMNH P- 1078 ( Fig. 8 View FIGURE I-J) is two large keeled plates of a nodosaur from the Naashoibito Member of the Kirtland Formation. These plates are similar to dorsal scutes of Edmontia (Coombs and Maryanska. 1990, fig. 22.13 upper).

Kingdom

Animalia

Phylum

Chordata

Class

Reptilia

Order

Dinosauria