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Didolodus
''Didolodus'' is an extinct genus of mammals from Middle Eocene Argentina. It is an ungulate mammal of uncertain affinities, possibly related to Litopterna, though this is uncertain due to the lack of reliable post-cranial remains, and for now remains Meridiungulata ''incertae sedis''.Javier Nicolás, The alleged astragalar remains of Didolodus Ameghino, 1897 (Mammalia, Panameriungulata) and a critic of isolated bone association models, 2012 Its remains were found in the Sarmiento Formation of Patagonia.''Didolodus'' at .org ''Didolodus'' probably was a quick-footed creature which probably lived like early |
Divisaderan
The Divisaderan age is a South American land mammal age, covering a period of geologic time (42.0–36.0 Ma) within the Middle and Late Eocene epochs of the Paleogene. It follows the Mustersan age and is followed by the Tinguirirican age.Divisaderan at .org Etymology The age is named after the Divisadero Largo Formation of Divisadero Largo, Mendoza, |
Didolodontidae
Didolodontidae is a possibly paraphyletic family of "condylarth" mammals known from the Paleocene to the late Eocene of South America.J. N. Gelfo. 2010. The "condylarth" Didolodontidae from Gran Barranca: history of the bunodont South American mammals until the Eocene-Oligocene transition. In R. H. Madden, A. A. Carlini, M. G. Vucetich, R. F. Kay (eds.), The Paleontology of Gran Barranca: Evolution and Environmental Change through the Middle Cenozoic of Patagonia 130-14 References Paleocene first appearances Eocene extinctions Prehistoric mammal families Condylarths Meridiungulata {{Paleo-mammal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernestokokenia
''Ernestokokenia'' is an extinct genus of mammal, belonging to the Didolodontidae. It lived during the Early Eocene and the Middle Eocene, and its fossils were discovered in South America. Description This genus is only known from its teeth, and it is then impossible to reconstruct its exact appearance. From comparison with similar and better known animals such as ''Didolodus'', its size is estimated between 60 centimeters and a meter long. ''Ernestokokenia'' was characterized by very simple molar (tooth), molars and premolars, with a bunodont structure, similar to those of ''Didolodus''. The upper third and fourth molar were differently shaped and lacked a mesostyle. The labial and lingual cingulum were well developed. Classification ''Ernestokokenia'' was a member of the Didolodontidae, an enigmatic clade of south-american mammals typicals of the early Cenozoic, of uncertain relationships. The first fossils of this animal were found in the Chubut Province in Patagonia (Arge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paulogervaisia
''Paulogervaisia'' is an extinct genus of mammal, belonging to the family Didolodontidae. Its fossilized remains have been found in South America. Description This genus is known only from fossilized teeth, and it is therefore impossible to reconstruct exactly its appearance. Compared with the remains of better known forms, such as his relative '' Didolodus'', it can be inferred that ''Paulogervaisia'' could reach one meter in length. ''Paulogervaisia'' is characterized by a third upper molar as wide than the second, and by a metaconus in a more lingual position than the paracone. The mesostyle was smaller than in ''Didolodus''. The third lower molar had an entoconid as large than the hypoconulid. Classification ''Paulogervaisia'' is a member of the Didolodontidae, a mysterious clade of south american mammals from the early Cenozoic, whose exact relationships are not well known. The type species is ''Paulogervaisia inusta'', described by Florentino Ameghino in 1901, based on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarmiento Formation
The Sarmiento Formation (Spanish: ''Formación Sarmiento''), in older literature described as the Casamayor Formation, is a geological formation in Chubut Province, Argentina, in central Patagonia, which spans around 30 million years from the mid-Eocene to the early Miocene. It predominantly consists of pyroclastic deposits, which were deposited in a semi-arid environment. It is divided up into a number of members. The diverse fauna of the Sarmiento Formation, including a variety of birds, crocodilians, turtles and snakes, also includes many mammals such as South American native ungulates (notoungulates, litopterns, astrapotheres) as well as armadillo Armadillos (meaning "little armored ones" in Spanish) are New World placental mammals in the order Cingulata. The Chlamyphoridae and Dasypodidae are the only surviving families in the order, which is part of the superorder Xenarthra, along wi ...s, and caviomorph rodents. Material was copied from this source, which is availabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenacodus
''Phenacodus'' (Greek: "deception" (phenax), "tooth' (odus)) is an extinct genus of mammals from the late Paleocene through middle Eocene, about 55 million years ago. It is one of the earliest and most primitive of the ungulates, typifying the family Phenacodontidae and the order Perissodactyla. Description The typical ''Phenacodus primaevus'' was a relatively small ungulate about long and weighed up to , of slight build, with straight limbs each terminating in five complete toes, and walking in the digitigrade fashion of the modern horse. The middle toe was the largest, and the weight of the body was mainly supported on this and the two adjoining digits, which appear to have been encased in hooves, foreshadowing the tridactyl type common in perissodactyls and certain extinct groups of ungulates. The skull was small, with proportionately minute brain; and the arched back, strong lumbar vertebrae, long and powerful tail, and comparatively feeble fore-quarters all proclaim kinship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umayodus
''Umayodus'' is an extinct genus of "condylarth" mammal from the late Paleocene or the earliest Eocene.''Umayodus'' at .org It is a didolodontid which lived in what is now . It is known from the LU3-801, an isolated right , w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamegoia
''Lamegoia'' is an extinct genus of mammals, belonging to the family Didolodontidae Didolodontidae is a possibly paraphyletic family of "condylarth" mammals known from the Paleocene to the late Eocene of South America.J. N. Gelfo. 2010. The "condylarth" Didolodontidae from Gran Barranca: history of the bunodont South American ma .... It contains a single species, ''Lamegoia conodonta'', which lived during the Late Paleocene in what is now South America. Description This animal is only known from a few fossil teeth, and reconstructing its appearance is therefore impossible. From comparison with some of his relatives, it is assumed it may have been 75 centimeters long. ''Lamegoia'' was characterized by bunodont teeth, quite similar to ''Didolodus'' but more archaic ; the lower molar (tooth), molars possessed a complete trigonid. Classification ''Lamegoia'' is a member of the Didolodontidae, a badly known clade of south-american mammals from the early Cenozoic. ''Lamegoia co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
