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Tiktaalik is an Inuktitut word meaning "large freshwater fish". [4] The "fishapod" genus received this name after a suggestion by Inuit elders of Canada's Nunavut Territory, where the fossil was discovered. [7] The specific name roseae honours an anonymous donor. [12]
A quatrefoil (anciently caterfoil) [1] is a decorative element consisting of a symmetrical shape which forms the overall outline of four partially overlapping circles of the same diameter. It is found in art, architecture, heraldry and traditional Christian symbolism. [2]
The evolution of fish began about 530 million years ago during the Cambrian explosion. It was during this time that the early chordates developed the skull and the vertebral column, leading to the first craniates and vertebrates. The first fish lineages belong to the Agnatha, or jawless fish.
Cnidaria (/ nɪˈdɛəriə, naɪ -/ nih-DAIR-ee-ə, NY-) [ 4 ] is a phylum under kingdom Animalia containing over 11,000 species [ 5 ] of aquatic animals found both in fresh water and marine environments (predominantly the latter), including jellyfish, hydroids, sea anemones, corals and some of the smallest marine parasites.
Aquatic plants are plants that have adapted to living in aquatic environments (saltwater or freshwater). They are also referred to as hydrophytes or macrophytes to distinguish them from algae and other microphytes. A macrophyte is a plant that grows in or near water and is either emergent, submergent, or floating.
Arowana. Arowanas are freshwater bony fish of the subfamily Osteoglossinae, also known as bony tongues[1] (the latter name is now often reserved for Arapaiminae). [2] In this family of fish, the head is bony and the elongated body is covered by large, heavy scales, with a mosaic pattern of canals. The dorsal and anal fins have soft rays and are ...
Poeciliidae. Poeciliidae are a family of freshwater fishes of the order Cyprinodontiformes, the tooth-carps, and include well-known live-bearing aquarium fish, such as the guppy, molly, platy, and swordtail. The original distribution of the family was the Southeastern United States to north of Río de la Plata, Argentina, and Africa, including ...
Anablepidae is a family of fishes which live in brackish and freshwater habitats from southern Mexico to southern South America. [2] There are three genera with sixteen species: the four-eyed fishes (genus Anableps), the onesided livebearers (genus Jenynsia) and the white-eye, Oxyzygonectes dovii. Fish of this family eat mostly insects and ...