Difference between revisions of "Hexactinellida"
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| − | '''Hexactinellid''' [[porifera|sponges]], commonly referred to as '''glass sponges''', are those sponges with a [[silica|silaceous]] [[skeleton]] made of four- and/or six-pointed spicules. They are distributed worldwide, usually at depths between 200 and 1000 m, and are especially abundant in the [[Antarctica|Antarctic]]. All glass sponges are upright, and have specialized structures at their bases for securing themselves to the ocean floor. Typically they are cylindrical, but may also be cup-shaped, urn-shaped, or branching. The average height of a hexactinellid is between 10 and 30 cm.<ref>'''Myers, P.''' ''Hexactinellida'' [http://animaldiversity.ummz.umich.edu/site/accounts/information/Hexactinellida.html Animal Diversity Web] Accessed July 9 2007</ref> | + | '''Hexactinellid''' [[porifera|sponges]], commonly referred to as '''glass sponges''', are those sponges with a [[silica|silaceous]] [[skeleton]] made of four- and/or six-pointed spicules. They are distributed worldwide, usually at depths between 200 and 1000 m, and are especially abundant in the [[Antarctica|Antarctic]]. All glass sponges are upright, and have specialized structures at their bases for securing themselves to the ocean floor. Typically they are cylindrical, but may also be cup-shaped, urn-shaped, or branching. The average height of a hexactinellid is between 10 and 30 cm.<ref>'''Myers, P.''' ''Hexactinellida'' [http://animaldiversity.ummz.umich.edu/site/accounts/information/Hexactinellida.html Animal Diversity Web] Accessed July 9, 2007</ref> |
Because there are several very important, fundamental differences between hexactinellids and other sponges, many experts now suggest that Hexactinellida comprises a distinct phylum.<ref>'''Myers''' op cit</ref> | Because there are several very important, fundamental differences between hexactinellids and other sponges, many experts now suggest that Hexactinellida comprises a distinct phylum.<ref>'''Myers''' op cit</ref> | ||
Latest revision as of 13:56, July 13, 2016
| Hexactinellida | |
|---|---|
| |
| Scientific classification | |
| Kingdom Information | |
| Kingdom | Animalia |
| Phylum Information | |
| Phylum | Porifera |
| Class Information | |
| Class | Hexactinellida |
| Population statistics | |
Hexactinellid sponges, commonly referred to as glass sponges, are those sponges with a silaceous skeleton made of four- and/or six-pointed spicules. They are distributed worldwide, usually at depths between 200 and 1000 m, and are especially abundant in the Antarctic. All glass sponges are upright, and have specialized structures at their bases for securing themselves to the ocean floor. Typically they are cylindrical, but may also be cup-shaped, urn-shaped, or branching. The average height of a hexactinellid is between 10 and 30 cm.[1]
Because there are several very important, fundamental differences between hexactinellids and other sponges, many experts now suggest that Hexactinellida comprises a distinct phylum.[2]
References
- ↑ Myers, P. Hexactinellida Animal Diversity Web Accessed July 9, 2007
- ↑ Myers op cit