Paleontologists have long suspected that glyptodonts
(illustrated above) are related to modern armored mammals.
Also, like other Central American late Pleistocene mammal assemblages, the El Hatillo mammals are almost all large edentates and ungulates, and are a nearly equal mixture of South American (glyptodonts
, sloths, toxodonts) and North American (horses, peccaries, deer, proboscideans) immigrants.
Comparative material included glyptodont
material housed at the following Mexican collections: Coleccion de Macromamiferos, Museo de Paleontologia, Universidad Autonoma del Estado de Hidalgo, Pachuca, Hidalgo, specimens UAHMP-428, UAHMP-429, UAHMP-431, UAHMP-426, UAHMP-427, UAHMP-430, UAHMP-960, UAHMP-967, UAHMP-358, UAHMP-919A, UAHMP-919B, UAHMP-919D, and UAHMP-919E; Museo de Paleontologia Maria del Carmen Perrilliat M., Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Mexico City, specimens IGM 5955 and osteoderms with locality numbers 2436 and 2568; and the Coleccion de Referencia, Museo de Paleontologia de Guadalajara, "Federico A.
Carved teeth and strange jaws: How glyptodonts
At different points in the exhibition, visitors are encouraged to touch specimens--such as the reproduction of a giant glyptodont
skeleton (a prehistoric armored mammal)--and observe other items, such as samples of petrified wood, using a simple hand lens, just as Darwin did in developing and testing his theories.
& BAEZ, A., 2007: Late Pleistocene (Rancholabrean) Glyptodont
and Pampathere (Xenarthra, Cingulata) from Sonora, Mexico.- Rev.
Mead, in litt.) and glyptodont
and pampathere xenarthrans have been described (Mead et al., 2007).
The 5-foot-tall, almost 1ton glyptodont
looks like a rat covered in armor.
Assigning an Irvingtonian age to the locality is based mainly on the presence of the glyptodont
Glyptotherium arizonae and the camel Hemiauchenia cf.
And the recent fossils of South America, including monster ground sloths and giant armadillo-like glyptodonts
, were obviously more closely related to the modern biota of South America than to those of other continents.
Washington, August 12 ( ANI ): A new study has revealed that Earth is still recovering from the loss of giant sloths and armadillo-like glyptodonts
and others massive beasts of the last ice age, 12,000 years ago.
Members of the Xenarthra (Order Cingulata: armadillos, glyptodonts
, pampatheres; Order Pilosa: anteaters, sloths), have long been regarded as noteworthy among mammalian species for the uniqueness of their dentition, both in structure and dental formula.