Imagine That You Find a Fossil Skeleton of a Late

question 5

Multiple Choice

Imagine that you find a fossil skeleton of a Late Devonian vertebrate.Which feature would enable you to conclude that it was fully a tetrapod?

• A) a flattened skull with dorsally facing orbits
• B) the loss of skeletal support for any gills
• C) the loss of dorsal and anal fins
• D) well-developed joints between vertebrae, and between vertebrae and the pelvis
• E) lungs to enable breathing of atmospheric oxygen

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