joe rojas-burke

science journalist @rojasburke

April 30, 2014 at 5:19pm
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Is the coelacanth a ‘living fossil’? 
Definitely not if you think that means these fish have not evolved since the dinosaur days. 
These sketches show the huge variety of body shapes and sizes (in meters) that evolved among the coelacanths. Some had a short, round body, some had a long, slender body, some were eel-like, others resembled trout or even piranha, Casane and Laurenti point out. You can see how Latimeria, the lone surviving coelacanth lineage, attained double the body length of its closest relative, the extinct Macropoma, and also developed a very different body shape.
Source: Why coelacanths are not ‘living fossils’ A review of molecular and morphological data, by Didier Casane and Patrick Laurenti, Bioessays (2013)

Is the coelacanth a ‘living fossil’?

Definitely not if you think that means these fish have not evolved since the dinosaur days.

These sketches show the huge variety of body shapes and sizes (in meters) that evolved among the coelacanths. Some had a short, round body, some had a long, slender body, some were eel-like, others resembled trout or even piranha, Casane and Laurenti point out. You can see how Latimeria, the lone surviving coelacanth lineage, attained double the body length of its closest relative, the extinct Macropomaand also developed a very different body shape.

Source: Why coelacanths are not ‘living fossils’ A review of molecular and morphological data, by Didier Casane and Patrick Laurenti, Bioessays (2013)

Notes

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    "We hope that this review will contribute to dispelling the myth of the coelacanth as a ‘living fossil’ and help...
  21. sailorusagidesu reblogged this from coelacanth-fleet and added:
    but they’re still cool as shit
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