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Published: November 19, 2012

Stephanospermum braidwoodensis: nucellus & megaspore membrane

Ian Glasspool, Head, Collections, Collections Center

A reconstruction, based on microtomography, of the nucellus and megaspore membrane of a new fossil pteridosperm ovule (Stephanospermum braidwoodensis FMNH P30420) from Mazon Creek in Illinois as described by Alan Spencer, Jason Hilton and Mark Sutton in the journal Review of Palaeobotany and Palynology.

A reconstruction, based on microtomography, of the nucellus and megaspore membrane of a new fossil pteridosperm ovule (Stephanospermum braidwoodensis FMNH P30420) from Mazon Creek in Illinois as described by Alan Spencer, Jason Hilton and Mark Sutton in the journal Review of Palaeobotany and Palynology.

For full story see: http://fieldmuseum.org/explore/3d-x-ray-microtomography-reconstructions


Ian Glasspool

RESEARCH INTERESTS

The evolution of fire systems in deep time and their impact on paleoecology and broader Earth system processes.

The origins of coal-forming macerals and their significance in the interpretation of organic petrology.

Late Paleozoic paleobotany and its implications for paleoclimate and coal-geology.