- most con****uous
character is the wide
perforated fringe of the head.
Trinucleids have a
relatively large headshield, that is
characterized by a highly...
-
Cryptolithus is a
genus of
extinct epifaunal, suspension-feeding,
trinucleid trilobites that
lived during the
Ordovician period. They were
mostly blind...
- The
specimen shown has the
lower side of the
rostral plate and
genal spines displaced from the cephalon. "Trinucleus UK
Trinucleid Trilobite". v t e...
-
muddy sea bottoms.
Another unusual clade of
trilobites known as the
trinucleids developed a
broad pitted margin around their head shields. Some trilobites...
-
Protolloydolithus is a
genus of
trinucleid trilobites found in
Ordovician rocks in
Gilwern Hill, Powys, Wales. The
World Encyclopedia of Fossils& Fossil-Collecting...
- England. This
trilobite was
blind but
anatomical evidence suggests it
sifted organic matter on the seabed. "Salterolithus UK
Trinucleid Trilobite". v t e...
- Wales. This
trilobite was
blind but
anatomical evidence suggests it
sifted organic matter on the seabed. "Bettonolithus UK
Trinucleid Trilobite". v t e...
-
trilobites found in
Gilwern Hill, Powys, Wales. Anebolithus, like
other trinucleids, was blind.
Homagnostus is a
genus of
trilobite in the
order Agnostida...
-
trilobites found in
Gilwern Hill, Powys, Wales. Anebolithus, like
other trinucleids, was blind. C. P.
Hughes & A. J.
Wright (1970). "The
trilobites Incaia...
- brim or
fringe evolved independently in the two groups, and
interpret trinucleids as
likely specialized asaphids.
Evidence from the
study of soft-bodied...
