Fossil horsetail (Annularia sphenophylloid).

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Size: 3691px × 4735px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ancient, annularia, bearing, botanical, botany, extinct, flora, fossil, fossilised, fossilized, horsetail, nature, palaeontological, palaeontology, paleontological, paleontology, plant, prehistoric, prehistory, preserved, pteridophyta, rock, sphenophylloid, spore