-
cartilaginous fish from the
Pennsylvanian to the Permian,
known from
subtriangular to
rhomboidal teeth. The
genus was
named by
Richard Owen in 1840 and...
- oblate-spheroidal, medium-sized,
isopolar monads. They are 3-colplorate with a
subtriangular amb, a
small polar area, a long colpus, a
lalongate endoaperture, a...
-
Gyronaedyceras by
Flower in 1945. All
three have open,
gyroconic coiling, a
subtriangular whorl section with a
flattened dorsum. The
siphuncle in each is ventral...
- m****
being kidney bean-shaped, and the
morphology of the pes
being subtriangular. It
cannot be
identified whether the
footprints of the herd were caused...
- A
subtriangular cross section of the femur, with the
medial and
lateral sides converging to form a
thick crest pointing anteriorly (a
subtriangular cross...
-
terminal edge with a
series of
rather suffused, not
distinctly separate subtriangular small dots. The
hindwings are
glossy pale fuscous,
finely dusted with...
-
wingspan is
about 24 mm. The
wings are black, the
forewings with a
small subtriangular hyaline (gl****-like) spot in the cell and an
elongate wedge-shaped bar...
- from above. The
internasal scales are much
narrowed anteriorly and
subtriangular, with the
anterior angle truncated and as long as the
prefrontal scales...
-
posteriorly by a
minute grey-whitish dot.
There are ochreous-yellowish
subtriangular dots on the
costa at two-fifths and four-fifths, and on the
dorsum near...
- very
elongated and
bearing molar-like teeth, or are oval
shaped or
subtriangular and
bearing acicular (needle-like) or
conic teeth. A.
jatius lacks these...
