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Glyptodon (lit. ' grooved or carved tooth '; from Ancient Greek γλυπτός (gluptós) 'sculptured' and ὀδοντ-, ὀδούς (odont-, odoús) 'tooth') [1] is a genus of glyptodont, an extinct group of large, herbivorous armadillos, that lived from the Pliocene, around 3.2 million years ago, [2] to the early Holocene, around 11,000 years ago, in South America.
The first is the traditional Glyptodontinae, which is includes the well known genera of Glyptodon and Glyptotherium, which probably originated in Northern South America, while the second is the unnamed "Austral clade", containing the majority of glyptodont diversity, which as the name suggests probably originated in Southern South America.
Xenarthrans share several characteristics that are not present in other placental mammals, which suggest that xenarthrans descend from subterranean diggers. The name Xenarthra derives from the two ancient Greek words ξένος ( xénos ), meaning "strange, unusual", and ἄρθρον ( árthron ), meaning "joint", [ 4 ] [ 5 ] and refers to ...
Doedicurus (Ancient Greek δοῖδυξ "pestle" and oυρά "tail") is an extinct genus of glyptodont from South America containing one species, D. clavicaudatus.Glyptodonts are a member of the family Chlamyphoridae, which also includes some modern armadillo species, and they are classified in the superorder Xenarthra alongside sloths and anteaters.
Herbivorous dinosaurs exhibited convergent evolution towards one of two feeding strategies, one strategy resembling mammalian herbivores (emphasizing chewing-specialized morphology, with the skull acquiring and processing food) and another strategy analogous to herbivory in birds and reptiles (emphasizing a specialized gut as in the avian ...
The morphology of the tube is indistinguishable from that of fossils of Eosclerocalyptus and also juveniles of Neoslerocalyptus, making it a nomen dubium. [ 12 ] Lomaphorus cingulatus Ameghino, 1889; [ 5 ] Holotype is a single dorsal carapace osteoderm that has been lost, though a calcotype (MACN A-592) was created.
Dermal armor of MLP-16-28, a skeleton of N. ornatus.. Fossils of Neosclerocalyptus were first collected by a "Sir Woodbine Parish, KH" from the Pleistocene strata near the Matanzas River in Buenos Aires Province, Argentina, but where later sent to the Royal College of Surgeons in the UK, where they were later described by paleontologist Sir Richard Owen in 1845 as a species of the earlier ...
Palaehoplophorus was identified as an archaic representative of the glyptodonts, notably due to the morphology of its caudal tube, with barely differentiated osteoderms, a characteristic generally considered primitive. The ornamentation of the osteoderms was however rather derived, which tends to confirm that this genus wasn't nested in a basal ...