- the last
known fossils representing hibbertopterids are
known from
deposits of Late
Permian age. The
hibbertopterids represent the last
known living eurypterids...
- organs.
These adaptations suggest that Hibbertopterus, like
other hibbertopterids,
would have fed by a
method referred to as sweep-feeding,
using its...
- Adelophthalmidae, was
represented by only a
single genus, Adelophthalmus. The
hibbertopterids,
mycteroptids and
Adelophthalmus survived into the Permian. Adelophthalmus...
-
stylonurine eurypterids,
Campylocephalus completely lacked swimming paddles.
Hibbertopterids such as
Campylocephalus were, as many
other families within the stylonurine...
-
Arthropleura was 1.8
metres (5.9 ft) long, and the
semiterrestrial Hibbertopterid eurypterids were
perhaps as large, and some
scorpions reached 50 or...
-
sometimes classified as an
order separate from
Eurypterida itself, the
hibbertopterids are
clearly recovered as
stylonurine eurypterids in the
latest analyses...
-
similar to its
relatives within the
hibbertopterid family,
Hibbertopterus and Campylocephalus. The
hibbertopterids were
large eurypterids with
broad heads...
- They had a
culticular ornament of
scales or
mucrones and
unlike the
hibbertopterids,
appendage IV was non-spiniferous. The
first and
second opisthosomal...
- also
occurs in the Hibbertopteroidea,
though the
adaptations of the
hibbertopterids suggests they were more
selective feeders. The
Stylonuridae is classified...
-
articulated specimens and
isolated fragments A m****ive semi-terrestrial
hibbertopterid eurypterid, with a
carapace up to 65 cm (26 inches) in diameter. Some...
