Billion-year-old fossil could reveal new link in animal evolution

© PAEMBARGOED TO 0001 THURSDAY APRIL 29 Undated handout photo issued by the University of Sheffield of Bicellum Brasieri, a billion-year-old fossil which could prove a new link in the evolution of animals has been found in the Highlands. Issue date: Thursday April 29, 2021.
EMBARGOED TO 0001 THURSDAY APRIL 29 Undated handout photo issued by the University of Sheffield of Bicellum Brasieri, a billion-year-old fossil which could prove a new link in the evolution of animals has been found in the Highlands. Issue date: Thursday April 29, 2021.