Definition of diphycercal in English:
(Of a fish’s tail) approximately symmetrical and with the vertebral column continuing to the tip, as in lampreys. Contrasted with heterocercal, homocercal.
- The symmetrical, diphycercal tail, not perfected by gnathostomes until the Cretaceous, was standard equipment on heterostracans in the Silurian.
- In Strepsodus the tail was diamond shaped and diphycercal; in Gooloogongia loomesi it was nearly so.
- Sharks, and similar chondrichthyes, have heterocercal tails; the diphycercal tails are found in lungfish and their relatives; and the homocercal tail is characteristic of bony fish.
Definition of diphycercal in:
- US English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Malaysia
Most popular in Pakistan