Tag

Ancient Oceans

All articles tagged with #ancient oceans

science1 month ago•3 min saved

Ancient sea giant: a 19-metre octopus haunted the prehistoric oceans

Analysis of exceptionally preserved fossil jaws from Japan suggests giant octopuses could reach up to 19 metres in total length, potentially the largest known invertebrates and top predators in the Cretaceous seas, capable of crushing shells and bones of large prey; uneven jaw wear hints at one-sided feeding and possibly advanced brain function, though exact form and speed remain uncertain and no stomach contents have been found; the research is published in Science.

via BBC|

#ancient-oceans #invertebrates #octopus

science11 months ago•3 min saved

Ancient Squids and Predators: Dominance in 100 Million-Year-Old Oceans

A study published in Science reveals that 100 million years ago, squids were abundant and dominated the oceans as apex predators, challenging previous beliefs about their evolutionary timeline and highlighting their significant role in ancient marine ecosystems through advanced digital fossil analysis.

via Indian Defence Review|

#ancient-oceans #cephalopod-evolution #fossil-discovery

earth-science2 years ago•7 min saved

"Unearthing Ancient Ocean Water in the Himalayas: A Glimpse into Evolution"

Researchers have discovered water droplets trapped in mineral deposits in the Kumaon mountains in the Indian state of Uttarakhand, believed to be remnants of an ancient ocean dating back 600 million years. These droplets could provide insights into the Neoproterozoic Oxygenation Event and the Earth processes that fostered the evolution of complex life. The findings could enhance our understanding of ancient oceans, their composition, and the environment at the time, and could be valuable for future climate modeling. The Himalayas are considered a prime location for studying various Earth processes, and the researchers hope their findings will attract more research groups to the region.

via Mongabay.com|

#ancient-oceans #climate-modeling #earth-science

science2 years ago•2 min saved

Unveiling Earth's Ancient Ocean Secrets: Insights from Lake Superior Study

A study of Lake Superior has revealed a new type of sulfur cycle, providing insight into the biochemistry of Earth's ancient oceans. The lake's low sulfate levels make it similar to the ancient oceans, allowing scientists to analyze the sulfur cycle and understand processes that emerged when sulfate was scarce. Lake Superior serves as a great example of what the world's ancient oceans may have been like, helping scientists understand the evolution of early sulfur-cycling microorganisms and their impact on Earth's chemistry.

via Newsweek|

#ancient-oceans #biochemistry #lake-superior