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- Atlanticopristis (meaning "Atlantic saw") is an extinct genus of sclerorhynchid (a sawfish-like chondrichthyan) that lived during the Middle Cretaceous (Cenomanian) of what is now the Northeast Region of Brazil, between 100.5 and 93.9 million years ago. Fourteen fossil teeth from Atlanticopristis were found in the Alcântara Formation, and referred to the closely related Onchopristis in 2007; a redescription in 2008 by Brazilian paleontologists Manuel Medeiros and Agostinha Pereira assigned it to a new genus containing one species, Atlanticopristis equatorialis. Like all sawfish, it would have had a long snout armed with modified fish scales shaped into "teeth", but Atlanticopristis's teeth had barbs on both sides. Atlanticopristis inhabited fresh to brackish water estuaries near large conifer forests, and lived in the same time and place as many species of bony fish, cartilaginous fish, and lobe finned fish, as well as some crocodilians, and several dinosaurs. Many of the taxa present in the Alcântara Formation are also known from the Middle Cretaceous Kem Kem Beds in Morocco, due to the past connection of South America and Africa into the supercontinent Gondwana. (en)
- 大西洋锯鳐属(Atlanticopristis,意为“Atlantic saw”)是一属已经灭绝的硬尖犁头鳐类,生活在100.5到93.9百万年前的巴西东北地区。 科学家在Alcântara组中发现了来自于大西洋锯鳐属的14颗化石牙齿,并在2007年将其归为与之密切相关的帆锯鳐属的未定种。2008年,葡萄牙古生物学家Manuel Medeiros和Agostinha Pereira对其进行了重新描述,将其分类到包含一个物种Atlanticopristis equatorialis的新属。 它具有一个长长的吻部,侧面有齿状突起,但大西洋锯鳐属的牙齿两边都有倒钩。 大西洋锯鳐属生活在大型针叶林附近的咸淡水河口,与许多种类的硬骨鱼、软骨鱼和肉鳍鱼,以及一些鳄鱼和几种恐龙一起生活在同一时代和地点。 Alcântara组中的许多分类群也生存于摩洛哥的中白垩纪凯姆凯姆组,因为南美洲和非洲过去与冈瓦纳古陆相连接。 (zh)
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- Hypothetical life reconstruction based on relatives (en)
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- 大西洋锯鳐属(Atlanticopristis,意为“Atlantic saw”)是一属已经灭绝的硬尖犁头鳐类,生活在100.5到93.9百万年前的巴西东北地区。 科学家在Alcântara组中发现了来自于大西洋锯鳐属的14颗化石牙齿,并在2007年将其归为与之密切相关的帆锯鳐属的未定种。2008年,葡萄牙古生物学家Manuel Medeiros和Agostinha Pereira对其进行了重新描述,将其分类到包含一个物种Atlanticopristis equatorialis的新属。 它具有一个长长的吻部,侧面有齿状突起,但大西洋锯鳐属的牙齿两边都有倒钩。 大西洋锯鳐属生活在大型针叶林附近的咸淡水河口,与许多种类的硬骨鱼、软骨鱼和肉鳍鱼,以及一些鳄鱼和几种恐龙一起生活在同一时代和地点。 Alcântara组中的许多分类群也生存于摩洛哥的中白垩纪凯姆凯姆组,因为南美洲和非洲过去与冈瓦纳古陆相连接。 (zh)
- Atlanticopristis (meaning "Atlantic saw") is an extinct genus of sclerorhynchid (a sawfish-like chondrichthyan) that lived during the Middle Cretaceous (Cenomanian) of what is now the Northeast Region of Brazil, between 100.5 and 93.9 million years ago. Fourteen fossil teeth from Atlanticopristis were found in the Alcântara Formation, and referred to the closely related Onchopristis in 2007; a redescription in 2008 by Brazilian paleontologists Manuel Medeiros and Agostinha Pereira assigned it to a new genus containing one species, Atlanticopristis equatorialis. (en)
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- Atlanticopristis (en)
- 大西洋锯鳐属 (zh)
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