12 lines
404 B
Markdown
12 lines
404 B
Markdown
# Urbilaterian
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- Gave rise to the [[protostomia|protostomes]] and
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[[deuterostomia|deuterostomes]]
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- Had to be simple based on this
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- Based on Hox genes common to most descendants:
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- The Urbilaterian most likely had 6 segments
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- It most likely had 2 eyes
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- It most likely had a heart
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- Had to be complex based on this
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- Due to lack of fossil evidence, we don't know much for certain about it
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