However , it has been assigned to the form genus Thallites , which is used for thalloid fossil plants and algae of uncertain relationships .
Another early fossil probably belonging to the Metzgeriales is the Carboniferous fossil Thallites willsi , which has been compared to the modern genus Metzgeria .
It has been assigned to the form genus Thallites , which is used for thalloid fossil plants and algae of uncertain relationships .
Another early fossil probably belonging to the Metzgeriales is the Carboniferous fossil Thallites willsi , which has been compared to the modern genus Metzgeria .