- I.
quadriscissus. Otto
Jaekel in 1904 re****igned it to its own genus, Stenopterygius. The type
species is
therefore Ichthyosaurus quadriscissus but the...
- ichthyosaurs:
Ichthyosaurus communis, I. breviceps, and
Stenopterygius quadriscissus (Reptilia, Ichthyosauria)" (PDF). Life
Sciences Contributions Royal...
- "the last
common ancestor of
Ichthyosaurus communis and
Stenopterygius quadriscissus and all of its descendants". The
cladogram below follows the topology...
- to be more
closely related to
Ophthalmosauridae than
Stenopterygius quadriscissus,
though S.
aaleniensis was
sometimes found to be
closer to the ophthalmosaurids...
-
Stenopterygius quadriscissus...
-
Stenopterygius quadriscissus...
-
fossiliferous deposit, an
original specimen of
Ichthyosaurus (Ichthyosaurus
quadriscissus) from the
Mesozoic era, a
pyritized crinoid from the
genus Pentacrinus...
-
lectotype of S. hauffi**** can be
determined as
Stenopterygius cf. S.
quadriscissus at best, and
therefore this
species should be
considered a
nomen dubium...
-
Stenopterygius quadriscissus...
- ichthyosaurs:
Ichthyosaurus communis, I. breviceps, and
Stenopterygius quadriscissus (Reptilia, Ichthyosauria)". Life
Sciences Contributions Royal Ontario...
