Definission: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
Definission: Component found in mineralized skeletal tissue, (a specialized form of biogenic tissue in which the extracellular matrix is mineralized, and which functions in mechanical and structural support.)
Definission: The number of fossil occurrences in the Paleobiology Database (https://paleobiodb.org) that are identified as belonging to a particular taxon or any of its subtaxa.
Definission: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
Definission: An eye that consists of a cluster of three or four pit eyes that form a single structural unit but are separated from one another by pigment layers
J'ambient andoa as sa ch'a vivo tante spece ëd Xestoleberididae Sars 1928. Selessioné n'ambient për vëdde soa lista ëd contròl dë spece ëd Xestoleberididae Sars 1928.
Ambient ëd Xestoleberididae Sars 1928
J'ambient andoa as sa ch'a vivo tante spece ëd Xestoleberididae Sars 1928. Selessioné n'ambient për vëdde soa lista ëd contròl dë spece ëd Xestoleberididae Sars 1928.