70 million years ago, Earth had 372 days a year. An ancient shell reveals days lasted just 23 hours and 31 minutes
- PC: Wikipedia, Wilson44691 – Own work, Public DomainAbout 70 million years ago, during the late Cretaceous period, a year lasted roughly 372 days rather than 365, meaning each day was around half an hour shorter than it is today.
- The research team examined the growth layers of a single fossilised rudist bivalve, Torreites sanchezi, recovered from the Al-Hajar Mountains in Oman.
- Using laser-based sampling, the researchers counted daily growth increments in the shell with far greater accuracy than earlier microscope-based methods, calculating both the length of the Cretaceous day and the distanc
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- PC: Wikipedia, Wilson44691 – Own work, Public DomainAbout 70 million years ago, during the late Cretaceous period, a year lasted roughly 372 days rather than 365, meaning each day was around half an hour shorter than it is today.
- The research team examined the growth layers of a single fossilised rudist bivalve, Torreites sanchezi, recovered from the Al-Hajar Mountains in Oman.
- Using laser-based sampling, the researchers counted daily growth increments in the shell with far greater accuracy than earlier microscope-based methods, calculating both the length of the Cretaceous day and the distanc
Sources: Times of India