algorithmsunfold

geometrymatters:

diatoms - california academy of sciences geology

1. Biddulphia deodora -  Miocene, ph#000058D,scale bar = 10 µm

2. Actinoptychus chenevierei - holotype, Cretaceous, ph#000677D, scale bar = 10 µm

3. Lithodesmium margaritaceum - Cretaceous, ph#000865D, scale bar = 10 µm

4. Aulacodiscus currus - holotype, Eocene, ph#001088D, scale bar = 10 µm

5. Triceratium diversum - holotype, Eocene, ph#001131D, scale bar = 10 µm

6. Triceratium swastika - Cretaceous, ph#000956D, scale bar = 10 µm