I'm going to have to be geeky again ......
Fossilised herbivore dung from the late cretaceous period, of which the tyrannosaur and triceratops were still active, contained at least five different types of grasses.
The evidence comes from finding tiny crystals (phytiliths) ... These grow in plant cells and can survive digestion.
The evidence was confirmed by an C. Stromberg who is an expert in phytiliths at the Swedish museum of natural history.
The grasses have been confirmed to have been several metres tall.
Fossilised herbivore dung from the late cretaceous period, of which the tyrannosaur and triceratops were still active, contained at least five different types of grasses.
The evidence comes from finding tiny crystals (phytiliths) ... These grow in plant cells and can survive digestion.
The evidence was confirmed by an C. Stromberg who is an expert in phytiliths at the Swedish museum of natural history.
The grasses have been confirmed to have been several metres tall.
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