Ascidiacea - Wikipedia
网页Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. [2] Ascidians are characterized by a tough outer "tunic" made of a polysaccharide. Ascidians are found all over the world, usually in shallow water with salinities over 2.5%.
Sea squirt | Tunicate, Filter Feeding & Reproduction | Britannica
网页Sea squirt, any member of the invertebrate class Ascidiacea (subphylum Urochordata, also called Tunicata), marine animals with some primitive vertebrate features. Sea squirts are primarily sessile (permanently fixed to a surface), potato-shaped organisms found in all seas, from the intertidal zone.
The Ascidian as a Model Organism in Developmental and Evolutionary ...
网页2001年9月7日 · Ascidians, or sea squirts, are invertebrate chordates that belong to the earliest branch in the chordate phylum, the subphylum Urochordata or Tunicata (Figure 1A).
Ascidiacea World Database - WoRMS - World Register of Marine …
网页3 天之前 · 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.
An Introduction to Ascidians - SpringerLink
网页2016年3月9日 · Ascidians are exclusively marine prochordates belonging to the Class Ascidiace of the subphylum Urochordata. There are both solitary and colonial forms with a sessile adult attached directly to hard substrates or fixed in sediments and a tailed, free-swimming larva. Download chapter PDF.
Aniseed - Ascidian Network for In Situ Expression and …
网页ANISEED is a database about ascidians. It is designed to offer a representation of ascidian embryonic development at the level of the cell, the genome or the whole embryo.
The Biology of Ascidians - SpringerLink
网页Ascidians are the invertebrate group that gave rise to vertebrates, thus the biology of ascidians provides an essential key to understanding both invertebrates and vertebrates.
Ciona intestinalis - Wikipedia
网页Ciona intestinalis (sometimes known by the common name of vase tunicate) is an ascidian (sea squirt), a tunicate with very soft tunic. Its Latin name literally means "pillar of intestines", referring to the fact that its body is a soft, translucent column-like structure, resembling a mass of intestines sprouting from a rock. [1]
Global Diversity of Ascidiacea | PLOS ONE
网页2011年6月20日 · This review provides a comprehensive overview of the current knowledge regarding the global biodiversity of the class Ascidiacea, focusing in their taxonomy, main regions of biodiversity, and distribution patterns.
A mid-Cambrian tunicate and the deep origin of the ascidiacean …
网页2023年7月6日 · Ascidiaceans are species rich and diverse with regards to life history, morphology and ecology, including colonial and solitary epibenthic forms 5, filter feeding and carnivorous...
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