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Sigillaria boblayi

Sigillaria boblayi   Coll. Bart Vernooy
Waste heap mine Laura, Eygelshoven (NL)
Westfalian A
Width of a rib 7 mm

Characteristics:
- leaf scars about as high as wide, hexagonal to rounded
- furrows between the ribs straight or slightly undulating
- vertical distance of the leaf scars mostly no larger than half the height of a scar, often less
- lateral angles rather sharp
- in most cases a clearly-defined line above the leaf scars is present
- two slanting rows of wrinkles ('a split beard')  below the leaf scars.

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