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上熊属.
上熊属![](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a5/Infobox_info_icon2.svg/18px-Infobox_info_icon2.svg.png)
化石时期: Late Miocene至Late Pliocene
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科学分类
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界:
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动物界 Animalia
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门:
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脊索动物门 Chordata
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纲:
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哺乳纲 Mammalia
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目:
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食肉目 Carnivora
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科:
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熊科 Ursidae
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亚科:
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眼镜熊亚科 Tremarctinae
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属:
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†上熊属 Plionarctos Frick, 1926[1]
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模式种
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†Plionarctos edensis
Frick, 1926
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种
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†P. harroldorum Tedford & Martin, 2001[2]
†P. edensis Frick, 1926
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上熊属(学名:Plionarctos)是一种灭绝的熊属,生存于北美洲的中新世至上新世期间,约1000万至330万年前,存在了大约700万年[2]。
印度熊属(Indarctos )(约1070万至920万年前)比上熊属晚出现了几千年,与该熊物种共存并共享了它的栖息地。上熊属先于并与Tremarctos floridanus(约490万年前至11000年前)共存,并共享其栖息地。上熊属是短面熊亚科(Tremarctinae)中已知最古老的属,被认为是这个支系的祖先。
化石分布
地点和标本年龄:
- 法国普罗旺斯雷托诺岛砾岩,大约在800,000至100,000年前
- 美国佛罗里达州波尔克县Fort Green Mine古生物学遗址,大约在1030万至490万年前
- 美国华盛顿州亚当斯县Taunton遗址(P. harroldorum),大约在490万至180万年前(Plionarctos harroldorum)
- 美国印第安纳州格兰特县Pipe Creek Sinkhole(P. edensis),大约在1030万至180万年前
- 美国佛罗里达州波尔克县Palmetto Mine,大约在790万至780万年前
- 美国田纳西州华盛顿县Gray Fossil Site,大约在7,000,000至4,500,000年前
参考资料
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| | | †半犬齿熊亚科 |
- Amphicticeps
- Parictis
- 獭犬熊属
- Allocyon
- 壮犬齿熊属
- 半犬齿熊属
- Wangictis
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| †半狗亚科 | 鼬熊族 |
- Adelpharctos
- Cyonarctos
- Phoberogale
- Filholictis
- 鼬熊属
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| 毛半熊族 | |
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| 半熊族 | |
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| †祖熊亚科 | |
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| †郊熊亚科 | |
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| 猫熊亚科 | |
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| 眼镜熊亚科 | |
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| 熊亚科 | | | 熊属 |
- Ursus abstrusus
- Ursus arvernensis
- Ursus sackdillingensis
- Ursus savini
- 奥弗涅熊
- 伊特拉斯坎熊
- 大多利纳熊
- 德宁格尔熊
- 更新世小洞熊
- 加姆苏尔岑洞熊
- 洞熊
- 麦克法兰熊
| | 棕熊 | |
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| 北极熊 | |
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| 亚洲黑熊 |
- 地中海黑熊
- Ursus thibetanus permjak
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| 懒熊属 | |
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