Deuterostome & Echinoderm - Unionpedia, the concept map

Ambulacraria

Ambulacraria, or Coelomopora, is a clade of invertebrate phyla that includes echinoderms and hemichordates; a member of this group is called an ambulacrarian.

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Animal

Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia.

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Anus

In mammals, invertebrates and most fish, the anus (anuses or ani; from Latin, 'ring' or 'circle') is the external body orifice at the exit end of the digestive tract (bowel), i.e. the opposite end from the mouth.

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Arkarua

Arkarua adami is a small, Precambrian disk-like fossil with a raised center, a number of radial ridges on the rim, and a five-pointed central depression marked with radial lines of five small dots from the middle of the disk center.

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Asterozoa

The Asterozoa are a subphylum in the phylum Echinodermata.

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Bilateria

Bilateria is a large clade or infrakingdom of animals called bilaterians, characterized by bilateral symmetry (i.e. having a left and a right side that are mirror images of each other) during embryonic development.

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Blastozoa

Blastozoa is a subphylum of extinct Echinoderms characterized by the presence of specialized respiratory structures and brachiole plates used for feeding.

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Blastulation

Blastulation is the stage in early animal embryonic development that produces the blastula.

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Brittle star

Brittle stars, serpent stars, or ophiuroids (referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish.

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Cambrian

The Cambrian is the first geological period of the Paleozoic Era, and the Phanerozoic Eon.

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Chordate

A chordate is a deuterostomic animal belonging to the phylum Chordata. All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics (synapomorphies) that distinguish them from other taxa.

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Cloaca

A cloaca,: cloacae, is the rear orifice that serves as the only opening for the digestive, reproductive, and urinary tracts (if present) of many vertebrate animals.

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Coelom

The coelom (or celom) is the main body cavity in many animals and is positioned inside the body to surround and contain the digestive tract and other organs.

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Crinoid

Crinoids are marine invertebrates that make up the class Crinoidea.

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Crinozoa

Crinozoa is a subphylum of mostly sessile echinoderms, of which the crinoids, or sea lilies and feather stars, are the only extant members.

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Ecdysozoa

Ecdysozoa is a group of protostome animals, including Arthropoda (insects, chelicerata (including arachnids), crustaceans, and myriapods), Nematoda, and several smaller phyla.

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Echinozoa

Echinozoa is a subphylum of free-living echinoderms in which the body is or originally was a modified globe with meridional symmetry.

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Gastrulation

Gastrulation is the stage in the early embryonic development of most animals, during which the blastula (a single-layered hollow sphere of cells), or in mammals the blastocyst, is reorganized into a two-layered or three-layered embryo known as the gastrula.

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Heart

The heart is a muscular organ found in most animals.

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Hemichordate

Hemichordata is a phylum which consists of triploblastic, enterocoelomate, and bilaterally symmetrical marine deuterostome animals, generally considered the sister group of the echinoderms.

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Holocene

The Holocene is the current geological epoch, beginning approximately 11,700 years ago.

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Mesoderm

The mesoderm is the middle layer of the three germ layers that develops during gastrulation in the very early development of the embryo of most animals.

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Mollusca

Mollusca is the second-largest phylum of invertebrate animals, after Arthropoda; members are known as molluscs or mollusks.

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Nephrozoa

Nephrozoa is a proposed major clade of bilaterian animals.

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Ordovician

The Ordovician is a geologic period and system, the second of six periods of the Paleozoic Era.

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Osteichthyes

Osteichthyes, also known as osteichthyans or commonly referred to as the bony fish, is a diverse superclass of vertebrate animals that have endoskeletons primarily composed of bone tissue.

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Phylum

In biology, a phylum (phyla) is a level of classification or taxonomic rank below kingdom and above class.

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Protostome

Protostomia is the clade of animals once thought to be characterized by the formation of the organism's mouth before its anus during embryonic development.

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Sea cucumber

Sea cucumbers are echinoderms from the class Holothuroidea. They are marine animals with a leathery skin and an elongated body containing a single, branched gonad.

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Sea urchin

Sea urchins or urchins, alternatively known as sea hedgehogs, are typically spiny, globular animals, echinoderms in the class Echinoidea.

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Spiralia

The Spiralia are a morphologically diverse clade of protostome animals, including within their number the molluscs, annelids, platyhelminths and other taxa.

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Starfish

Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea.

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Symmetry in biology

Symmetry in biology refers to the symmetry observed in organisms, including plants, animals, fungi, and bacteria.

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The New York Times

The New York Times (NYT) is an American daily newspaper based in New York City.

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Xenacoelomorpha

Xenacoelomorpha is a small phylum of bilaterian invertebrate animals, consisting of two sister groups: xenoturbellids and acoelomorphs.

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