Reinterpretation of Azolla primaeva (Azollaceae, Eocene, Canada) using electron microscopy and X-ray tomographic microscopy

• Main Authors: Collinson, Margaret E., van Konijnenburg-van Cittert, Johanna H.A., Marone, Federica, Brain, Anthony P.R.
• Other Authors: Marine Palynology, Marine palynology and palaeoceanography
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2017
• Subjects: Heterosporous water fern; Megaspore; Float zone; Microspore massula; Ultrastructure; Taverne; Arctic; Canada; Driftwood Creek
• Online Access: https://dspace.library.uu.nl/handle/1874/349097

Azolla primaeva (Penhallow) Arnold fertile whole plants from the lower Eocene of Driftwood Creek, Canada have been examined using LM, SEM, TEM and SRXTM methods on hand specimens and sieved residues. The new data have resulted in an emended diagnosis. The megaspore is partly covered by filosum and t...