Basseiarges
mellishae
Note: Per
recent 2013 reference below: newly erected genus is Basseiarges and
new species is mellishae after Dr Martin Basse a researcher
of Devonian trilobites
Trilobites
Order Lichida, Family Lichidae, Subfamily Trochurinae
Barrandeops sp
Order Phacopida,
Family Phacopidae
Geological
Time: Middle Devonian
Siz: Trilobites
are, Basseiarges: 23 mm long by 25 mm wide (counting spines) Barrandeops:
28 mm long by 14 mm wide- 55 mm long by 28 mm wide on a 165 mm by 130
mm matrix
Fossil Site:
Jorf, Morocco
Fossil Code:
17081
Price: $995.00
 Description:
This death assemblage is composed of one example of the unusual
trilobite Basseiarges mellishae in association with no less than
FIVE examples of the phacopid trilobite Barrandeops. The plaque
from a recently discovered location known as Jorf in, close to the
site from which the polished goniatie ammonites originate. The preservation
of the exoskeleton is reminiscent of them in terms of texture, unlike
many trilobites from Morocco. The flattened round shape and spines
along the edge of the pleural and pygidiial lobes indicate to me
that Basseiarges was a dweller of the seafloor. The body configuration
would have served the same function as snowshoes. These unfortunates
became buried rapoidly, perhaps during a storm, with little post
mortem transport. It is a NATRAL association and not a composite.
I include two inprep photos, one of which shows the single crack
in the reverse side.
Reference: Batalleria, 18, March 2013, pp 15-24 |
|
