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- sphenophytes, not just
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floral diversity of...
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Ronny Rößler;
Rosemarie Rohn;
Robert Noll (2015). "New
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Artur A. Sa (2019). "On a new
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Annularia from the
Douro Basin (lower Gzhelian; NW Portugal)"...
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petrified calamitaleans from the
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Labandeira (2020). "The
history of
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Roberto Iannuzzi;
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