Cartilaginous joints

Cartilaginous joints are a type of joint where the bones are entirely joined by cartilage, either hyaline cartilage or fibrocartilage. These joints generally allow more movement than fibrous joints but less movement than synovial joints.

Primary cartilaginous joint 

These cartilaginous joints are composed entirely of hyaline cartilage and are known as synchondroses. Most exist between ossification centers of developing bones and are absent in the mature skeleton, but a few persist in adults.

Examples
Secondary cartilaginous joint

These are permanent joints called symphyses and are composed of fibrocartilage. They are considered amphiarthroses, meaning that they allow only slight movement and are all found at the skeletal midline.

Examples