Not all bones are interconnected directly: There are three bones in each middle ear called the ossicles that articulate only with each other. Source: Internet
The auditory ossicles can also reduce sound pressure (the inner ear is very sensitive to overstimulation), by uncoupling each other through particular muscles. Source: Internet
Most species of Carboniferous marine fish have been described largely from teeth, fin spines and dermal ossicles, with smaller freshwater fish preserved whole. Source: Internet
It coalesces into small calcareous ossicles (bony plates), which can grow in all directions and thus can replace the loss of a body part. Source: Internet
Muscles main The movement of the ossicles may be stiffened by two muscles. Source: Internet
The ear ossicles are pachyosteosclerotic (dense and compact) and differently shaped from land mammals (other aquatic mammals, such as sirenians and earless seals, have also lost their pinnae). Source: Internet