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Copped and Pasted Text: Make it Wikipedia appropriate BEFORE adding to article. “'''The genus Allopleuron covers hitherto a stratigraphical range from the Upper Cretaceous (Cenomanian) to the Palaeogene (Lower Oligocene: Rupelian). It was widespread on the southern continental shelf in the whole Laurasian-Holarctic region which was possibly the breeding area of the species of this highly pelagic sea turtle genus. “'''

Fossil History
Addition 2: Allopleuron was believed to have survived, until its extinction between 94.3 and 28.4 Ma. The earliest fossil was found in 1986 by M. Uhen in Germany. The most recent Allopleuron fossil found was in 2012 by P. Mannion also within Germany. Other fossils have been found within the Netherlands and Kazakhstan.

Addition 3: Some remains of Allopleuron are belied to have been created during the Eocene era (56 Ma to 33.3 Ma). These remains indicate that Allopleuron survived the extinction event that killed of most of the dinosaurs around 65 Ma years ago.

Life History
Addition 1: Allopleuron was believed to have used the Laurasuan-Holarctic southern continental shelf as a breading area. The modern day location of the breading ground is along the coast of Asia. Laurasuan started to separate roughly 175 Mya. Allopleuron is believed to have eaten jellyfish, seaweed, or carcasses due to its relation to the toxochelys family. It is believed that adult male Allopleuron's lived off the coast of southeast Netherlands, and northeast Belgium due to the large amount of fossils in these areas. The area is believed to have been a sea grass meadow that was able to sustain the large population. The lack of remains from juvenile Allopleuron indicate that the young of the species lived elsewhere.

Relatives
Allopleuron is most closely related to the toxochelys family of turtles. The toxochelys family is believed to have gone extinct during the late Cretaceous period. A consequence of this extinction is the lack of living relatives to Allopleuron. Allopleuron exhibits characteristics of a tortoise, but was not classified within that family due to skeletal differences. These included the distribution of the substantia compacts, the lack of sutures of the bone plates, the vertebrae and ribs being separate from the carapace, and the substantia compacta separation.

oBst & ansorge (2010) regarded the fossil in question as a remnant of a tortoise. Because of the strongly carinate shape of the carapace and the short side areas a placement within Allopleuron cannot be excluded, but is less probable due to the following characters: (i) distribution of the Substantia compacta, and (ii) the lack of sutures of the bone plates in those areas as usual in turtles. Furthermore the vertebrae and the ribs are not connected with the carapace (plate 4). Maybe the fossil belongs to the Dermochelyidae. This family is documented by Eosphargis breineri Nielsen, 1959 from equivalent strata in Denmark (nielsen, 1959, 1963).

Essentially saying that it is not related to a tortoise.

See chart on page 170 for distributions of the tortoise.

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