- Nov 2, 2016
- 4,819
- 1,644
- 67
- Gender
- Male
- Faith
- Catholic
- Marital Status
- Married
This is wrong; coelacanths (note the spelling) have a long fossil record, from the Lower Devonian to the Upper Cretaceous, and they did change during that time - Coelacanth - Wikipedia . The modern coelacanth (genus Latimeria) belongs to a different genus from all extinct coelacanths, and the youngest recorded fossil coelacanths (Megalocoelacanthus dobiei and Axelrodichthys megadromos) belong to different families (Latimeriidae and Mawsoniidae). The Latimeriidae comprise eleven genera and the Mawsoniidae nine.
I think that this is enough to show that the statement that coelacanths 'didn't change over time' is inaccurate. I should add that coelacanths are not a single species or even a single genus but an order (Actinistia), on the same taxonomic level as Primates. This implies that coelacanths of the Latimeriidae and the Mawsoniidae were no more closely related than, for example, apes and lemurs.
Whatever example used : The generality is still true.
Indeed punctured speciation bothered Darwin as the advocate of gradual speciation. So continuous change is not necessarily proven or consensus. So evolution as “ biota chance, mostly” is not unfair as definition.
Upvote
0