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Hace 5 días · Background. Ascidians (Phylum: Chordata, Class: Ascidiacea), or sea squirts, are the largest and most diverse class of the sub-phylum Tunicata (also known as Urochordata). They comprise approximately 3000 described species found in all marine habitats from shallow water to the deep sea.
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Ascidians (Phylum: Chordata, Class: Ascidiacea), or sea...
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7 de may. de 2024 · fish, any of approximately 34,000 species of vertebrate animals (phylum Chordata) found in the fresh and salt waters of the world. Living species range from the primitive jawless lampreys and hagfishes through the cartilaginous sharks, skates, and rays to the abundant and diverse bony fishes.
6 de may. de 2024 · vertebrate, any animal of the subphylum Vertebrata, the predominant subphylum of the phylum Chordata. They have backbones, from which they derive their name. The vertebrates are also characterized by a muscular system consisting primarily of bilaterally paired masses and a central nervous system partly enclosed within the backbone.
Hace 4 días · Chordata: Class: Mammalia: Order: Artiodactyla: Clade: Cetaceamorpha: Infraorder: Cetacea Brisson, 1762: Subgroups †Pakicetidae †Ambulocetidae †Remingtonocetidae †Protocetidae (paraphyletic) Pelagiceti Uhen, 2008 †Basilosauridae (paraphyletic) †Kekenodontidae; Neoceti Fordyce & de Muizon, 2001. Mysticeti; Odontoceti (see ...
Hace 4 días · Crocodilia (or Crocodylia, both / krɒkəˈdɪliə /) is an order of mostly large, predatory, semiaquatic reptiles known as crocodilians. They first appeared 94 million years ago in the Late Cretaceous period ( Cenomanian stage) and are the closest living relatives of birds, as the two groups are the only known survivors of the Archosauria.
6 de may. de 2024 · The green sea turtle ( Chelonia mydas ), also known as the green turtle, black (sea) turtle or Pacific green turtle, [4] is a species of large sea turtle of the family Cheloniidae. It is the only species in the genus Chelonia. [5] Its range extends throughout tropical and subtropical seas around the world, with two distinct populations in the ...
22 de abr. de 2024 · Phylum Chordata usually refers to the categories of animals with a rod-like structure, which is often referred to as the backbone or spine. It usually includes all types of animals that satisfy four basic characteristics, i.e., a notochord, pharyngeal slits, postanal tail and dorsal nerve cord.
