恐竜クイズ

Q What fossil evidence showed that Ichthyosaurus reproduced without having to come ashore?

What fossil evidence showed that Ichthyosaurus reproduced without having to come ashore?
  • A Fossils of enormous nests on the seafloor
  • B Fossils of individuals with eggs or embryos inside their bodies
  • C Fossil of a Newly Hatched Juvenile

B Fossils of individuals with eggs or embryos inside their bodies

Fossils of Ichthyosaurus have been discovered with embryos or eggs inside their bodies, revealing that they gave birth to their young underwater rather than coming ashore to lay eggs.
This reproductive strategy provides important evidence of their adaptation to a fully aquatic lifestyle.

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