Australian Biological Resources Study

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The subclass Holocephali, a group of cartilaginous fishes, contains only one living order, the Chimaeriformes, and at least eight fossil orders. Holocephalans are usually deepwater bottom-dwelling fishes. They have the four gills covered by a soft gill cover and have grinding tooth plates. The group is thought to be the primitive sister group to the elasmobranchs, sharing the character state of having a cartilaginous skeleton. Nelson (1994) reviewed the literature on the group.


History of changes

Note that this list may be incomplete for dates prior to September 2013.
Published As part of group Action Date Action Type Compiler(s)
16-Apr-2012 16-Apr-2012 MODIFIED
12-Feb-2010 (import)