- Joined
- Nov 19, 2002
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- 3,031
Here's an interesting announcement, just published today:
Meterorite Impact in the Devonian Period
It seems that evidence of a major meteorite impact has just been announced at a date of 380mya. This is interesting from the point of cephalopod evolution as it is around this date that the earliest ammonoids appear in the fossil record. Could it be that ammonoids evolved from the earlier nautiloids around this point to exploit an ecological niche caused by a mass extinction?
Food for thought.......
Meterorite Impact in the Devonian Period
It seems that evidence of a major meteorite impact has just been announced at a date of 380mya. This is interesting from the point of cephalopod evolution as it is around this date that the earliest ammonoids appear in the fossil record. Could it be that ammonoids evolved from the earlier nautiloids around this point to exploit an ecological niche caused by a mass extinction?
Food for thought.......