Did primates evolve from rodents?

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Discussion Overview

The discussion centers around the evolutionary relationship between primates and rodents, exploring whether primates evolved directly from rodents or share a common ancestor. It touches on the broader topic of mammalian evolution and the challenges posed by the fossil record.

Discussion Character

  • Debate/contested
  • Exploratory
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that all primates and rodents share a common ancestor, but do not agree on a direct evolutionary path from rodents to primates.
  • There is mention of early mammals being small and rodent-like, which may contribute to the confusion regarding the evolutionary lineage.
  • One participant highlights the incomplete fossil record of primate evolution due to environmental factors, indicating that much remains uncertain and speculative.

Areas of Agreement / Disagreement

Participants generally agree that there is a common ancestry among mammals, but multiple competing views remain regarding the specific evolutionary relationship between primates and rodents. The discussion remains unresolved.

Contextual Notes

The discussion acknowledges limitations in the fossil record and the speculative nature of current theories regarding primate evolution.

Dremmer
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Did primates evolve from rodents? I remember hearing that that was the case.
 
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We all evolved from a common ancestor if that's what you mean, but I'm don't think it was a direct evolution from rodent to primate.
 
Dremmer said:
Did primates evolve from rodents? I remember hearing that that was the case.
Perhaps you're thinking of reports of the first known mammals which were reported to be small and rodent like?

http://en.wikipedia.org/wiki/Megazostrodon
 
Forest environments are not very conducive to making fossils, so the fossil record of primate evolution is very incomplete. There is a lot of room for speculation and theory, but only because there is so much left to learn.
 

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