Tag

Cephalopod

All articles tagged with #cephalopod

"Nautilus: A Living Fossil in a Cosmic Shell"

Originally Published 2 years ago — by The Guardian

Featured image for "Nautilus: A Living Fossil in a Cosmic Shell"
Source: The Guardian

The nautilus, a cephalopod in a spiral shell, is a survivor of mass extinctions and has a unique shape that reflects galaxies. Its shell is a logarithmic spiral, growing wider with each turn, resembling the arms of galaxies like the Milky Way. Nautiluses have survived for hundreds of millions of years and can withstand extreme pressure changes in the ocean. They live in chambers within their shells, sealing off each chamber as they grow. The nautilus is a fascinating creature that continues to captivate scientists and defy easy description.

Ancient Seafloor Communities Unearthed through Fossil Discovery

Originally Published 2 years ago — by The New York Times

Featured image for Ancient Seafloor Communities Unearthed through Fossil Discovery
Source: The New York Times

Researchers have discovered a 480-million-year-old fossil in Morocco that provides evidence of an ancient interspecies interaction. The fossil is a cephalopod that was posthumously colonized by a colony of tiny filter-feeders called pterobranchs. This discovery sheds light on the early Paleozoic era and the transitionary period between the Cambrian and Ordovician periods. It also highlights the long history of animals building their homes on top of other animals, a behavior that has persisted for millions of years.