protaspis
protaspis The earliest stage recognized in larval trilobite (Trilobita) development. The larva is small, often spiny, and grows through successive moult stages. Initially it is a small disc but size and segmentation increase with each successive moult.
More From encyclopedia.com
Stage , Stage (or Phase)
The term "stage" is used to designate a developmental phase that, for Freud, is characterized by a specific organization of the libi… Metamorphosis , Metamorphosis, or a change in form, in biology means the transition from a larval stage to an adult stage. In most animals, embryonic development lea… Hemimetabolous , hemimetabolous Describing insect development in which there is incomplete or partial metamorphosis, typically with successive immature stages increas… Blastula , blastula The stage of development of an animal embryo that results from cleavage of a fertilized egg. This stage generally resembles a hollow ball wi… Oxygen-isotope Stage , oxygen-isotope stage One of the glacial or interglacial stages revealed by oxygen-isotope curves. Curves from Atlantic and Pacific deep-sea cores wer… Mature Phase , mature phase The stage in the cyclical pattern of community change in grasslands and heathlands. In grasslands, the mature phase is the stage in whic…
You Might Also Like
NEARBY TERMS
protaspis