- Willis,
Raymond (2014). "Morphology and
histology of
dorsal spines of the
xenacanthid shark Orthacanthus platypternus from the
Lower Permian of Texas, USA:...
- (December 2014). "Morphology and
Histology of
Dorsal Spines of the
Xenacanthid Shark Orthacanthus platypternus from the
Lower Permian of Texas, USA:...
- had a diet that
consisted of actinopterygians, acanthodians, dipnoans,
xenacanthids and tetrapods,
based on
analysis of
coprolites and gut contents. There...
- (December 2014). "Morphology and
Histology of
Dorsal Spines of the
Xenacanthid Shark Orthacanthus platypternus from the
Lower Permian of Texas, USA:...
-
between 5 and 8 m (16.5 and 26 ft) in size.
Triodus Triodus is a
genus of
xenacanthid cartilaginous fish. The
order Xenacanthida existed during the Carboniferous...
- the chondrocranium. A
similar two-point
articulation is also
found in
xenacanthid sharks. The rear edge of the
palatoquadrate would have been
braced by...
-
freshwater ecosystems,
preying on
small amphibians. Like most
other xenacanthids, this
genus possessed an
array of
spines arising from the
dorsal fins...
-
shark Sphenacanthus S.
sanpauloensis A
sphenacanthid shark Taquaralodus T.
albuquequei A
diplodoselachid shark Xenacanthus X.
pricei A
Xenacanthid shark...
- radials.
Broader proportion from
lateral view is also
comparable with
xenacanthid elasmobranch. The
faint impression of a
pectoral fin is visible. Pelvic...
-
genus Xenacanthus in 1970
based on the
belief that all
Upper Paleozoic xenacanthids belonged to said genus. In 2003, X.
luedersensis would be re****igned...
