Articles tagged with Ammonoidea
Researchers used electron microscopy to investigate ammolite's structural properties, finding that the colors are caused by light reflecting off narrow gaps between aragonite plates. The findings could inform the development of non-fading colored paints.
Scientists found that ammonite diversity flourished in Earth's oceans for over 350 million years before dying out with dinosaurs. New research shows their fate was not set in stone, but rather the result of regional changes in speciation and extinction rates.
A new study using museum collections reveals that ammonites were diverse and thriving across the globe just before their extinction in the Late Cretaceous. The research found that the balance of speciation and extinction rates varied by region, contradicting previous theories.
Researchers Dr. Robert Lemanis and Dr. Igor Zlotnikov propose that intricate shell structures may have been nature's defense strategy against predators, providing crucial reinforcement against external forces. This new insight offers a glimpse into the distant past, where survival against the odds was paramount.
Researchers used 3-D printed models to explore fractal-like interior shell patterns in ancient ammonoids. The study suggests that the intricate sutures and septa may have retained more liquid through surface tension, helping the ammonoids fine-tune their buoyancy.
Researchers from FAU found warning signs of mass extinction existed 700,000 years before the event, including fossil records of dying species. They also note that current global warming, ocean acidification, and oxygen lack are evident in today's biodiversity crisis.
Researchers found that ammonoids' initial strategy of producing many offspring led to their rapid proliferation after mass extinctions. However, this same strategy may have contributed to their demise at the end of the Cretaceous period.
The world's oceans are under siege due to species loss, leading to ecosystem collapse. A new study finds that a loss of ecological redundancy, where multiple species occupy the same space, is directly blamed for marine ecosystem collapse in the fossil record.