Asaphellus Moroccan Trilobite
Order Asaphida, Family Asaphidae
mm = 1 inch): 47 mm long by 35 mm wide on a 75 mm by 85 mm matrix
Here is one of the more uncommon trilobites of Morocco:an immature
example known as a Meraspid. Trilobites begin as
very small specimens without body segments known as a Holaspid.
As they begin to grow they add segments, typically one with each
shedding. This one has three distinct thoracic segments, with a
fourth developing. It appears to be a member of the Asaphidae with
affnites to Asaphellus based upon the shape of the pygidium. The
Asaphidae are not common representatives of the Moroccan Trilobita.
This one is exceptionally 3-D for an Ordovician trilobite, and would
make a good addition to a collection of the region’s trilobite
diversity. Note the orange color. These trilobites are preserved
as the iron mineral limonite; those from this region are a vibrant
orange or red. Meraspids are not often seen, perhaps in part because
of their small size.