1ST FOSSIL HAGFISH (MYXINOIDEA) - A RECORD FROM THE PENNSYLVANIAN OF ILLINOIS
1ST FOSSIL HAGFISH (MYXINOIDEA) - A RECORD FROM THE PENNSYLVANIAN OF ILLINOIS
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DOI：
10.1126/science.254.5032.701
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发表时间：
1991-11-01
期刊：
影响因子：
56.9
通讯作者：
BARDACK, D
中科院分区：
文献类型：
--
作者：
BARDACK, D
一种来自宾夕法尼亚的新属八目鳗（Myxinoidea）化石，显示了触角、头部骨骼和内脏的结构。目前还没有关于这类化石的报道。虽然这种新的盲鳗在鳃的位置、进食器官和相对发达的眼睛方面与现有的形式不同，但它与其最近的亲戚非常相似。因此，盲鳗有一个长期的，保守的地质历史。支持将类粘蛋白作为脊椎动物的姐妹群的分支图。
A fossil hagfish (Myxinoidea), a new genus from the Pennsylvanian, shows tentacles, structures of the head skeleton and internal organs. No other fossils of this group have been reported. Although this new hagfish differs from living forms in position of the gills, feeding apparatus, and relatively well developed eyes, it is quite similar to its recent relatives. Thus, hagfishes have a long, conservative geological history. Cladograms showing myxinoids as a sister group to the vertebrates are supported.