- Ectosteorhachis, Megalichthys, and the
possible megalichthyids Lohsania,
Rhizodopsis and Sterropterygion.
European megalichthyids include Askerichthys, Megalichthys...
- the
appearance of
tetrapods (four-legged vertebrates).
Tetrapods and
megalichthyids are the only
tetrapodomorphs which survived after the Devonian, with...
- stem gnathostomes.
Spiny sharks became extinct in the Permian.
Megalichthyids Megalichthyids are an
extinct family of lobe-finned fish. They are tetrapodomorphs...
- 2007: Janvier, P., Clément, G. and Cloutier, R., 2007, A
primitive megalichthyid fish (Sarcopterygii, Tetrapodomorpha) from the
Upper Devonian of Turkey...
-
shark teeth Ectosteorhachis E.
nitidus Geraldine, Coprolite,
Loftin A
megalichthyid tetrapodomorph Helodus H. sp.
Geraldine Rare
holocephalan teeth Hybodus...
-
other “osteolepidids” went extinct. Some
large fish,
namely rhizodonts,
megalichthyids, and a few acanthodians,
survived but
failed to
significantly increase...
-
Ectosteorhachis is an
extinct genus of
megalichthyid tetrapodomorphs that
lived during the
Permian period (Cisuralian epoch,
about 299 to 272 million...
-
Orthacanthus texensis (a
xenacanth "shark") and
Ectosteorhachis nitidus (a
megalichthyid fish).
Fossil bonebeds in the
vicinity of
Archer City were
first investigated...
-
Mahalalepis is an
extinct genus of
megalichthyid tetrapodomorphs which lived during the
Devonian period. Clement, A. M.; Cloutier, R.; Lu, J.; Perilli...
-
spines are less
common but
still far from rare.
Legitimate rhizodont,
megalichthyid, and
acanthodian fossils are
unknown from the deposit.
Among tetrapods...
