The floor plate is a structure integral to the developing nervous system of vertebrate organisms.

In 1924, several other bones, including a jawless skull, were found in a sealed closet in the Cathedral of Turku.

In vertebrate anatomy, hip (or coxa in medical terminology) refers to either an anatomical region or a joint.

In each case, index roads are used to help quantify total impact of vehicle collisions on specific vertebrate taxa.

Arandaspis prionotolepis is an extinct species of jawless fish that lived in the Ordovician period, about 480 to 470 million years ago.

Another noteworthy example is the familiar vertebrate body plan, whose structure is controlled by the homeobox (Hox) family of genes.

An aquatic animal is an animal, either vertebrate or invertebrate, which lives in water for most or all of its life.

The axial skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate.

Cope (1889) coined the name 'Agnatha' (jawless) for a group that included the cyclostomes and a number of fossil groups in which jaws could not be observed.

(2002) using mtDNA sequence data, concluding that Myxini is more closely related to Hyperoartia than to Gnathostomata i.e., that modern jawless fishes form a clade called Cyclostomata.

During the digging, mountain blasting and clearing of thick vegetation, about 3,000 invertebrate and 500 vertebrate fossils were found, and also over 250 plants from a forest consumed by fire of a volcanic explosion, pointed out Hortensia Broce .