Chaloneria cormosa megagametophytes
| On the left you can see a Valvisisporites megaspore cut in longitudinal section. The cellular tissue contained inside the spore is the megagametophyte |
| On the right you can see two more megaspores cut in longitudinal section. The one on the right is pointing up, the one on the left is pointing down at about 7 o'clock. In these spores, the trilete mark has opened slightly and the megagametophtyes are extended out of the spore. |
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