フォスファテリウム

フォスファテリウム
Maintenance situation evaluation
The extinction (fossil)
The geological age
Approximately 58,700,000 years ago (the latter period during the new generation Paleocene)
Classification
界 : Animal kingdom Animalia The gate : Chordate gate Chordata Amon : Vertebrate Amon Vertebrata Rope : Mammalia Mammalia Subclass : Beast subclass（Truth beast subclass） Theria Lower rope : Original beast lower rope (truth beast lower rope) Eutheria Gradation scale : African beast gradation scale (Afro terrier gradation scale) Afrotheria It is 近蹄類 (there is no rank) Paenungulata Eyes : Proboscidea (elephant eyes) Proboscidea (there is no rank)Truth ProboscideaEuproboscidea Course : †ヌミドテリウム department Numidotheriidae The genus : フォスファテリウム genus Phosphatherium　 Gheerbrant et al., 1996
Scientific name
Phosphatherium escuillei Gheerbrant et al., 1996
Japanese name
フォスファテリウム
Kind
フォスファテリウム エスクイッレイ P. escuillei Gheerbrant et al., 1996

フォスファテリウム (Phosphatherium) approximately 58,700,000 years ago (kind of the elephant having the primordial characteristic that inhabited North Africa ^[1] of 〉) in the beginning for latter term 〈 サネティアン period during the Paleocene in the Paleogene in a new generation.

It is thought with the oldest Proboscidea now as far as a fossil is discovered. I belonged to the ヌミドテリウム department which was an immediate early course as far as I was known for a narrow sense as "the elephant" of the place to say namely truth Proboscidea (Euproboscidea) now at the same time and inhabited alone in that in the Paleocene.

As for the fossil, only a fragmentary dental bone is discovered in the サネティアン layer in ウーレド horsefly Doune basin (Ouled Abdoun Basin) of Morocco [²].

Characteristic

It is extremely small with approximately 60cm in length, estimated approximately 15 kg in weight. In addition, almost none of the noses such as the elephant of the actual money develops, too. The size of the body is different, but it is admitted [³], and モエリテリウム (メリテリウム.Moeritherium) appearing late in Eocene epoch and a characteristic to meet, and to know are estimated when it was an animal of the land and water amphibia to live mainly on an aquatic plant, and to live for. In other words, the size of the body is dog degree, but it is considered that it was the figure such as the hippopotamus for the habits.

The that it is known and is oldest, and, however, there is no with the oldest system

It is known and is oldest フォスファテリウム, but, from the viewpoint of phylogenic evolution, it is not admitted that I assume it the oldest of the Proboscidea (elephant eyes) with the ヌミドテリウム department where they belong to. Above-mentioned モエリテリウム is found from the layer in the Eocene epoch that is the later times than フォスファテリウム, but the change is not yet seen in an opinion that アントラコブネ department said to that it is older with this evolution system (Anthracobunidae) is Proboscidea oldest systematically.

Footnote

[Help]

1. The details of the ^ habitation area: Afro Arabia (African Continent + Arabian Peninsula area) of the place where it was a lone continent in those days, a west end of North Africa part.
2. I discover it from シディ ダウード (Sidi Daoud Site) as the master of ^.
3. ^ モエリテリウム has been considered to be the oldest elephant until late years. It is considerably bigger than shoulder high approximately 70cm, approximately 3m in length and フォスファテリウム. The form and essence is done in a meaning to leave sea slug eyes (dugong eyes) and short pillar eyes (Desmostylus eyes) and a lot of characteristics before diverging as ティティス beasts with old animal group.

Allied item

• List of extinct animals

Outside link

• Mammalian classification
• Resident of フォスファテリウム - Old world ：Cf. image (habits reconstruction imagination figure)
• Phosphatherium escuillei - The Paleobiology Database ：Classification
• Phosphatherium - Gheerbrant et al. : PDF (as for the text English)
• long memories of elephants (Phosphatherium) - by Henry Gee - US Davis Geology
• phosphatherium: fossile et reconstitution en image, sur le site du CNRS ：Cf. image (a dental bone fossil specimen.a figure of habits reconstruction imagination)
• The mammal localities of Grand Daoui Quarries, Ouled Abdoun Basin, Morocco, Ypresian: A first survey ：Supplementary document (there are some mentions about this seed)

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