Why did nautiloids retreat from the global oceans thirty million years ago?
In short: For half a billion years, nautiloids dominated the seas. This video explores the emergence of new predators thirty million years ago that forced these ancient cephalopods into a single, restricted refuge, marking a significant shift in marine dominance.
Nautiloids maintained a global presence for approximately 500 million years. However, the arrival of new, more effective predators roughly 30 million years ago fundamentally altered their distribution.
These predators successfully pushed the nautiloids out of their expansive historical range, confining them to a solitary remaining habitat. The video examines the identity of these creatures and the ecological pressure they exerted on one of the ocean's most resilient lineages.
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Sources
- Summary by Intellect · source: Nautiloids Thrived For 500 Million Years Until These Guys Showed Up
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