Neurocrania - Dorsal & ventral views

Neurocranium & splanchnocranium - Dorsal view: Upper jaw of arch 1 - the palatoquadrate is missing. Locate the hyomandibular cartilage

Neurocranium & splanchnocranium - Ventral view: Upper jaw missing. Locate lower jaw & hyoid arch.

"PRIMITIVE" ACTINOPTERYGIAN FISHES

Amia - lateral view , more posterior section of skull	Amia - lateral view, anterior section of skull
Amia - palate & upper jaws; note that the teeth on the premaxilla are larger than the teeth on the maxilla or palatines.	Amia - posterior view showing foramen magnum & single basiooccipital & paired exoccipital bones.

"DERIVED" ACTINOPTERYGIAN FISHES

Rockfish - lateral view	Perch - lateral view	Cod - lateral view
Rockfish - ventral (no hyoid)	Perch - hyoid arch	Cod - palatal view
Rockfish - anterior view	Perch - posterior view	Cod - posterior view
Rockfish - posterior view	Perch - girdles visible

LISSAMPHIBIANS

Frog - dorsal & ventral views of skull	Frog - lateral view of skull showing more of tympanic ring for ear drum.
Frog - lateral view of skull	Frog - posterior view shows columella

Necturus - dorsal & ventral view of skulls & lower jaw	Necturus - lateral view of skull
Necturus - dorsal view of "neurocranium" showing the ossifying quadrate in red (central), ossifying occipitals (posterior) & the otic capsules in lighter green to the left.	Necturus - ventral views showing hole where columella should be in upper skull.
Necturus - more dorsal views	Necturus - showing the dried cartilages of the hyoid & branchial arches
Necturus - posterior views showing occipital condyles & foramen magnum.	Necturus - dorsal views of skulls with dried gills.

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