supraoccipital การใช้

• The supraoccipital, the backmost part of the skull, is convex.
• These holes and channels are found on the supraoccipital bone.
• They can be found in estuaries, mangrove swamps, supraoccipital ).
• In many other mammals, this bone is completely fused to the supraoccipital as in humans.
• In many bony fish and amphibians, the supraoccipital is never ossified, and remains as cartilage throughout life.
• At the back of the skull, there is a large cavity between the supraoccipital and the skull roof.
• However in some mammals ( for example, rodents, rabbits, and artiodactyls ), this bone remains separate from the supraoccipital bone.
• Eureptilia is characterized by the skull having greatly reduced supraoccipital, tabular, and supratemporal bones that are no longer in contact with the postorbital.
• The parietal bones at their rear form bony flaps that overlap the supraoccipital but do not touch the sides of the paraoccipitals and are themselves overlapped by the squamosals.
• Other features shared with ichthyosaurs include a supraoccipital similar to what is seen in early forms, a relatively long antorbital region, and a short transverse process for the ribs.
• In humans, it corresponds to the upper portion of the squama of the occipital bone that lies superior to the highest nuchal line and is completely fused to the supraoccipital.
• "Aspidoras " is easily distinguished from the other genera of the subfamily Corydoradinae by the presence of a supraoccipital fontanel; this character is an autapomorphy for the genus.
• The supraoccipital bone, the central upper bone of the rear of the skull, has a diamond-shaped process pointing to below and not reaching the upper rim of the foramen magnum.
• The skull and skeleton of the pygmy right whale is unlike those of any other extant whale : the supraoccipital shield extends farther posteriorly; the ear bone has a lateral wrinkle and is roughly square in outline.
• Immature specimens of " Otothyris " species, as in most species of the Hypoptopomatinae, exhibit salient crests or ridges of enlarged odontodes on the posterodorsal region of the supraoccipital and pterotic-supracleithrum bones.
• Frontals with anterior midline projection into the nasals; trapezoidal supraoccipital ( more expanded dorsally than ventrally ), lateral spur on the dorsal part of the lacrimal, iv ) fenestrated pterygoid; the large pineal foramen between the frontals.
• The larvae of bigeye trevally have been extensively described, with defining features being a conspicuously pigmented supraoccipital crest, relatively deep body and an anal fin ray count of 15 to 17, the lowest of any east Pacific carangid.
• The "'basioccipital "'lies in front of the opening, the two exoccipital condyles lie to either side, and the larger supraoccipital lies to the posterior, and forms at least part of the rear of the cranium.
• Additional diagnostic features seen in " Batropetes " include a supraoccipital bone that is not fused to the otic capsule, the presence of a retroarticular process ( a projection at the back of the lower jaw ), and two proximal bones in the tarsus.
• Classic comparative anatomy have regarded the interparietal as being lost in various mammalian lineages since the interparietal and supraoccipital fuse with each other in the early ontogenetic period in many mammals, but recent study has shown that its presence is confirmed in all extant mammalian orders, particularly in the embryonic period ( Koyabu and others, 2012 ).