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Definition: The word "achordate" is a Latin word that means to make, or perform an acoustic musical note with the same quality as a particular note. This term refers to the ability to play a certain note in harmony with other notes in the instrument.
Definition: The term Acrocchoridea is defined as a group of extinct chordate animals that included mammals and reptiles, including acrocorinthians, gnathochordates, and pachydermids.
Definition: The term "Ailuropus" refers to a genus of chordate vertebrates in the family Ailuroidea that inhabits montane and subalpine regions of Asia, North America, and Europe. They are rod-shaped, with a long tail that serves as a swimming or floating mechanism, and are adapted for high altitude life.
Definition: The Anacaardiacae are an extinct group of chordate animals that are related to modern mammals.
Definition: A type of chordate, closely related to chondrichaids, but without a backbone.
Definition: Rhabditobothrium is a term used in zoology that describes a group of organisms that have similar structures and functions, often found in aquatic environments. This term is closely related to the term "rhodochordates" which refers to echinoderms, but it can also encompass other groups like crustaceans and mollusks.
Definition: Neopycnadenas are a group of small, round-shaped organisms that belong to the phylum Chordata and have been identified in various forms from different orders within the class Chordates. These organisms can be found in both aquatic and terrestrial environments, and their primary function is to assist in the movement of water through the body.
Definition: The term "Neurochaetidae" refers to a group of animals that belong to the class Neurochordata, which is divided into three main families: Cephalochelidea (such as clams and oysters), Planktochoela (such as brachiopods), and Nectarchi (such as annelids). These groups share a common ancestor with chordates, the class of vertebrates that includes humans, animals, and plants.
Definition: Spongiodermidae is a group of chordates (vertebrates with a backbone) that includes chordates and echinoderms, which are animals without a backbone. These organisms have a similar arrangement of internal organs and structures in their bodies, including a central nervous system and a circulatory system. Spongiodermidae also share some similarities with the echinoderm family, which is another group of marine animals that includes jellyfishes, sponges, crabs
Definition: Coelinide, an extinct group of small, highly specialized chordates that lived during the Late Cretaceous period, consisting of a series of four genera, including the coelenterate, which is characterized by its large, flexible skeleton and long, flattened bodies.