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Dictionary » E » Echinoidea

Echinoidea

Echinoidea

(Science: zoology) The class echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See spatangoid, Clypeastroid.

alternative forms: Echinidea, and Echinoida.

Origin: NL. See echinus, and -oid.


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Why do you keep talking about species

... Class: Hydrozoa Phylum: Echinodermata Sea Stars, Sea Urchins and relatives Class: Asteroidea Sea Stars, Cushion Stars and relatives Class: Echinoidea Sea Urchins, Heart Urchins and Sand Dollars Class: Holothuroidea Sea Cucumbers Phylum: Mollusca Molluscs Class: Bivalvia Bivalves Class: ...

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by gamila
Mon Jun 29, 2009 5:35 pm
 
Forum: Evolution
Topic: Why do you keep talking about species
Replies: 23
Views: 46965

DNA replication, Cell division and Evolution

... Class: Hydrozoa Phylum: Echinodermata Sea Stars, Sea Urchins and relatives Class: Asteroidea Sea Stars, Cushion Stars and relatives Class: Echinoidea Sea Urchins, Heart Urchins and Sand Dollars Class: Holothuroidea Sea Cucumbers and this is equally meaningless http://www.indianchild.com/animal_kingdom.htm ...

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by gamila
Sun Jun 07, 2009 7:05 am
 
Forum: Evolution
Topic: DNA replication, Cell division and Evolution
Replies: 16
Views: 20489

The Fiber Disease

... 7,291 Molgula tectiformis 7,351 Aves Gallus gallus (Chicken) 30,470 Cephalochordata Branchiostoma floridae (Florida lancelet) 11,300 Echinodermata Echinoidea Strongylocentrotus purpuratus (Purple sea urchin) 14,658 Arthopoda Insecta Aedes aegypti (Yellow fever mosquito) 15,392 Anopheles gambiae ...

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by Skytroll
Sun May 21, 2006 3:36 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 4990320

classification help

... oligochaeta, order haplotaxida snake: phylum chordata, class reptilia, order squamata, suborder serpentes sea urchin: phylum echinodermata, class echinoidea centipede: phylum arthropoda, subphylum myriapoda, class chilopoda butterfly: phylum arthropoda, class insecta, order lepidoptera sponge: ...

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by abstemious_entity
Thu May 05, 2005 4:40 am
 
Forum: General Discussion
Topic: classification help
Replies: 9
Views: 36223


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