Megalocoelacanthus dobiei is an extinct species of giant latimeriid coelacanth lobe-finned fish which lived during the Lower Campanian epoch until possibly the early Maastrichtian in the Late Cretaceous period in Appalachia, the Western Interior Seaway and Mississippi Embayment. Its disarticulated remains have been recovered from the Eutaw Formation, Mooreville Chalk Formation, and Blufftown Formation of Alabama, Mississippi, and Georgia, and also from the Niobrara Formation of Kansas. Although no complete skeleton is known, careful examination of skeletal elements demonstrate it is closely related to the Jurassic-aged coelacanthid Libys. The species is named for herpetologist James L. Dobie. It has been estimated to have been 3.5—4.5 meters in length.
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| - Megalocoelacanthus (fr)
- Megalocoelacanthus (en)
- Megacoelacanthus (sv)
- 巨腔棘鱼属 (zh)
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| - Megalocoelacanthus dobiei is an extinct species of giant latimeriid coelacanth lobe-finned fish which lived during the Lower Campanian epoch until possibly the early Maastrichtian in the Late Cretaceous period in Appalachia, the Western Interior Seaway and Mississippi Embayment. Its disarticulated remains have been recovered from the Eutaw Formation, Mooreville Chalk Formation, and Blufftown Formation of Alabama, Mississippi, and Georgia, and also from the Niobrara Formation of Kansas. Although no complete skeleton is known, careful examination of skeletal elements demonstrate it is closely related to the Jurassic-aged coelacanthid Libys. The species is named for herpetologist James L. Dobie. It has been estimated to have been 3.5—4.5 meters in length. (en)
- Megalocoelacanthus dobiei Megalocoelacanthus Crâne de Megalocoelacanthus dobiei. Genre † Megalocoelacanthus, 1994 Espèce † Megalocoelacanthus dobiei, 1994 Megalocoelacanthus est un genre éteint de poissons à membres charnus. Une seule espèce est rattachée à ce genre, Megalocoelacanthus dobiei. Ses fossiles ont été découverts dans le centre, l'est et le sud des États-Unis. Ils datent de la fin du Crétacé supérieur (Campanien et Maastrichtien), il y a environ entre −84 et −66 Ma (millions d'années). (fr)
- Megacoelacanthus är ett utdött släkte av lobfeniga fiskar som levde under juraperioden. (sv)
- 巨腔棘鱼属（屬名：Megalocoelacanthus）是已灭绝的巨型矛尾鱼科腔棘魚，生活于晚白堊世的桑托期晚期到马斯特里赫特期的河口與近海，全長估計有3.5至4.5公尺，是同時期最大的腔棘魚，也是最後的已滅絕腔棘魚之一。巨腔棘魚已被確認的化石皆來自美國東南部，包含阿拉巴马州和乔治亚州的、與，以及堪萨斯州的，此外在墨西哥東北部新萊昂州的也有疑似的化石紀錄，但尚無完整的化石被發現。本屬僅有一個物種，即模式种杜比巨腔棘鱼（M. dobiei），得名自兩棲爬行動物學家（James L. Dobie）。 迄今的譜系分析都顯示巨腔棘魚屬於矛尾鱼科，並與歐洲的存在姐妹群的近親關係，但同時巨腔棘魚也有的部分共有衍徵。而巨腔棘魚又以不具牙齒的下頜骨，以及密布細小粒狀突起的，而有別於其他的矛尾魚類。此特徵可能代表巨腔棘魚以吸食的方式攝食，或以浮游生物為食。由於巨腔棘魚化石所在的地層包含沿岸深海、沿岸淺海至河口的沉積環境，對海水深度與鹽度的適應範圍可能都相當廣；而若墨西哥的化石紀錄屬於巨腔棘魚，從化石分布推測，巨腔棘魚在白堊紀晚期的西部內陸海道南部至古墨西哥灣一帶海域可能是相當常見的魚類。 (zh)
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| binomial
| - Megalocoelocanthus dobiei (en)
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| - Schwimmer et al., 1994 (en)
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| - Schwimmer et al., 1994 (en)
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| - Megalocoelocanthus dobiei mounted skull in the Rocky Mountain Dinosaur Resource Center in Woodland Park, Colorado (en)
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| - Megalocoelacanthus dobiei is an extinct species of giant latimeriid coelacanth lobe-finned fish which lived during the Lower Campanian epoch until possibly the early Maastrichtian in the Late Cretaceous period in Appalachia, the Western Interior Seaway and Mississippi Embayment. Its disarticulated remains have been recovered from the Eutaw Formation, Mooreville Chalk Formation, and Blufftown Formation of Alabama, Mississippi, and Georgia, and also from the Niobrara Formation of Kansas. Although no complete skeleton is known, careful examination of skeletal elements demonstrate it is closely related to the Jurassic-aged coelacanthid Libys. The species is named for herpetologist James L. Dobie. It has been estimated to have been 3.5—4.5 meters in length. (en)
- Megalocoelacanthus dobiei Megalocoelacanthus Crâne de Megalocoelacanthus dobiei. Genre † Megalocoelacanthus, 1994 Espèce † Megalocoelacanthus dobiei, 1994 Megalocoelacanthus est un genre éteint de poissons à membres charnus. Une seule espèce est rattachée à ce genre, Megalocoelacanthus dobiei. Ses fossiles ont été découverts dans le centre, l'est et le sud des États-Unis. Ils datent de la fin du Crétacé supérieur (Campanien et Maastrichtien), il y a environ entre −84 et −66 Ma (millions d'années). (fr)
- Megacoelacanthus är ett utdött släkte av lobfeniga fiskar som levde under juraperioden. (sv)
- 巨腔棘鱼属（屬名：Megalocoelacanthus）是已灭绝的巨型矛尾鱼科腔棘魚，生活于晚白堊世的桑托期晚期到马斯特里赫特期的河口與近海，全長估計有3.5至4.5公尺，是同時期最大的腔棘魚，也是最後的已滅絕腔棘魚之一。巨腔棘魚已被確認的化石皆來自美國東南部，包含阿拉巴马州和乔治亚州的、與，以及堪萨斯州的，此外在墨西哥東北部新萊昂州的也有疑似的化石紀錄，但尚無完整的化石被發現。本屬僅有一個物種，即模式种杜比巨腔棘鱼（M. dobiei），得名自兩棲爬行動物學家（James L. Dobie）。 迄今的譜系分析都顯示巨腔棘魚屬於矛尾鱼科，並與歐洲的存在姐妹群的近親關係，但同時巨腔棘魚也有的部分共有衍徵。而巨腔棘魚又以不具牙齒的下頜骨，以及密布細小粒狀突起的，而有別於其他的矛尾魚類。此特徵可能代表巨腔棘魚以吸食的方式攝食，或以浮游生物為食。由於巨腔棘魚化石所在的地層包含沿岸深海、沿岸淺海至河口的沉積環境，對海水深度與鹽度的適應範圍可能都相當廣；而若墨西哥的化石紀錄屬於巨腔棘魚，從化石分布推測，巨腔棘魚在白堊紀晚期的西部內陸海道南部至古墨西哥灣一帶海域可能是相當常見的魚類。 (zh)
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