Blastoid - Obliterate

Channel: strawberrylemonadre   |   2013/03/18
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1
Blastoid - Obliterate
Blastoid - Obliterate
::2013/03/18::
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2
BLASTOID BLASTOID.wmv
BLASTOID BLASTOID.wmv
::2011/11/10::
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3
Dubstep 2012 (DubToxic Mix) BLASTOID N MEGADROID
Dubstep 2012 (DubToxic Mix) BLASTOID N MEGADROID
::2011/03/13::
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4
Blastoid -self sustained existance live 3-29-12 @ billy o
Blastoid -self sustained existance live 3-29-12 @ billy o's
::2012/03/30::
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5
Blastoid - Self-Sustained Existence
Blastoid - Self-Sustained Existence
::2013/03/18::
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6
Blastoid-All Riot
Blastoid-All Riot
::2012/03/06::
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7
Blastoid @Whiskeys SB 11/28/12
Blastoid @Whiskeys SB 11/28/12
::2012/12/22::
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8
Dillon and Kat Thrashing to BLASTOID!
Dillon and Kat Thrashing to BLASTOID!
::2012/01/13::
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9
Blastoid
Blastoid
::2011/03/28::
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10
4-14-12 Blastoid- Choking on air
4-14-12 Blastoid- Choking on air
::2012/04/16::
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11
4-14-12 blastoid- blastoid
4-14-12 blastoid- blastoid
::2012/04/16::
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12
4-14-12 Blastoid- Booger sugar
4-14-12 Blastoid- Booger sugar
::2012/04/16::
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13
Invasion: Blastoids +150k score Part 1
Invasion: Blastoids +150k score Part 1
::2011/12/25::
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Blastoid at Billy O
Blastoid at Billy O's July 20, 2012
::2012/07/21::
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Blastoid, Gov. Rick Perry and Hasidic Jews at the same party!
Blastoid, Gov. Rick Perry and Hasidic Jews at the same party!
::2011/09/26::
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4-14-12 Blastoid- self sustained existence
4-14-12 Blastoid- self sustained existence
::2012/04/16::
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17
Blastoid at Billy O
Blastoid at Billy O's July 20, 2012
::2012/07/21::
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18
4-14-12 Blastoid- i hate my job
4-14-12 Blastoid- i hate my job
::2012/04/16::
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19
Blastoid-I hate my job
Blastoid-I hate my job
::2012/03/06::
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20
Blastoid-"Blastoid" live 3-29-12 @ billy
Blastoid-"Blastoid" live 3-29-12 @ billy'os
::2012/03/30::
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21
blastoid 3D 1995
blastoid 3D 1995
::2010/04/09::
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22
Blastoid @ billy o
Blastoid @ billy o's 12-23-11 "i hate my job"
::2011/12/30::
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23
BLASTOID  happier than you
BLASTOID happier than you'll ever be
::2011/11/10::
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24
Blastoid-choking on air ....live 3-29-12...@ billy o
Blastoid-choking on air ....live 3-29-12...@ billy o's
::2012/03/30::
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25
Blastoid-Blastoid
Blastoid-Blastoid
::2012/03/06::
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26
4-14-12 Blastoid- skate and thrash
4-14-12 Blastoid- skate and thrash
::2012/04/16::
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27
Blastoid @ Billy O
Blastoid @ Billy O's 12-23-11 "Happier Than You'll Ever Be"
::2011/12/26::
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28
Blastoid @Whiskeys SB 11/28/12
Blastoid @Whiskeys SB 11/28/12
::2012/12/22::
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29
MEGA BLASTOID!11
MEGA BLASTOID!11
::2013/11/23::
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30
Blastoid-booger sugar live 3-29-12 ...live @ billy o
Blastoid-booger sugar live 3-29-12 ...live @ billy o's
::2012/03/30::
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31
Blastoid -happier than youll ever be... live 3-29-12 @ billy
Blastoid -happier than youll ever be... live 3-29-12 @ billy 'os
::2012/03/30::
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32
Costa Rican Surprise - Revenge of Blastoid - Part II
Costa Rican Surprise - Revenge of Blastoid - Part II
::2013/02/11::
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33
blastoids
blastoids
::2008/07/27::
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34
Phantasy Star II - Infinite Blastoid Grinding
Phantasy Star II - Infinite Blastoid Grinding
::2014/02/23::
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35
blastoid recording 3 1
blastoid recording 3 1
::2012/03/07::
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36
Blastoid @Whiskeys SB 11/28/12
Blastoid @Whiskeys SB 11/28/12
::2012/12/22::
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37
BLASTOID "I Hate My Job"
BLASTOID "I Hate My Job"
::2012/02/28::
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38
Mistah Bohze bLASToid mcgONagle Album Sampler 2012
Mistah Bohze bLASToid mcgONagle Album Sampler 2012
::2012/01/19::
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39
BLASTOID @billy o
BLASTOID @billy o's 12-23-11 "Santa Susana Meltdown"
::2011/12/30::
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40
Dubstep 2012 (Dubsgusting Mix) MEGADOID N BLASTOID
Dubstep 2012 (Dubsgusting Mix) MEGADOID N BLASTOID
::2011/03/05::
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41
pokemon kid
pokemon kid
::2008/11/24::
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42
Jessy Matador - Bombastic ( Remixed By Blastoid DJ Cuchito Mix )
Jessy Matador - Bombastic ( Remixed By Blastoid DJ Cuchito Mix )
::2011/10/06::
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43
Blastoid
Blastoid
::2011/09/15::
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44
Blastoids at KEOGH-FEST 2012 (2)
Blastoids at KEOGH-FEST 2012 (2)
::2012/07/29::
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45
The life of Blastoid
The life of Blastoid
::2012/07/30::
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46
Blastoid at The Basement
Blastoid at The Basement
::2014/04/09::
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47
Saving Captain Blastoid
Saving Captain Blastoid
::2009/01/24::
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48
4-14-12 Blastoid- all riot
4-14-12 Blastoid- all riot
::2012/04/16::
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49
Where the Hell is Captain Blastoid (Revised)
Where the Hell is Captain Blastoid (Revised)
::2009/02/02::
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Electro House 2012 (No Left Turn Mix) MEGADROID N BLASTOIDS
Electro House 2012 (No Left Turn Mix) MEGADROID N BLASTOIDS
::2010/12/27::
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From Wikipedia, the free encyclopedia
  (Redirected from Blastoidea)
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Blastoids
Temporal range: Ordovician - Permian
Blastoid fossils (thecae) attached to matrix.
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Subphylum: Blastozoa
Class: Blastoidea
Say, 1825
Orders

Fissiculata
Spiraculata
Incertae sedis:
Macurdablastus

"Blastoidea", from Ernst Haeckel's Art Forms of Nature, 1904

Blastoids (class Blastoidea) are an extinct type of stemmed echinoderm.[1] Often called sea buds, blastoid fossils look like small hickory nuts. They originated, along with many other echinoderm classes, in the Ordovician period and reached their greatest diversity in the Mississippian subperiod of the Carboniferous period. However, some blastoids may have come from the Cambrian. Blastoids persisted until their extinction at the end of Permian, about 250 million years ago. Although never as diverse as their contemporary relatives, the crinoids, blastoids are common fossils, especially in many Mississippian-age rocks.

Description[edit]

Like most echinoderms, blastoids were protected by a set of interlocking plates of calcium carbonate, which formed the main body, or theca. In life, the theca of a typical blastoid was attached to a stalk or column made up of stacked disc-shaped plates. The other end of the column was attached to the ocean floor by a holdfast, very much like stalked crinoids. The stalk was usually relatively short, and in some species, was absent, with the holdfast being attached directly to the base of the theca.

The mouth was located at the summit of the theca. Radiating like flower petals from the center were five food grooves, or ambulacra. Each ambulacrum had many long, thin, fine structures called brachioles, which were used to trap food particles and bring them to the mouth. Brachioles were delicate structures, and in fossils are not usually preserved in place. A series of five spiracle plates surrounded the star-shaped mouth, which included the anus, mouth and entrances to a set of five complex, folded respiratory organs known as hydrospires. These spiracles prevented mixing of the various fluids. Waste elimination was through the anispiracle, an opening formed by the fusing of anus and adjacent spiracles.

Like crinoids, blastoids were high-level, stalked suspension feeders (feeding mainly on planktonic organisms) that inhabited clear-to-silty, moderately agitated ocean waters from shelf to basin. The food gathering system of blastoids consisted of several types of ambulacra. Food entered the brachiolar ambulacra, was transferred to the side ambulacra through the brachiolar pit, then transferred to the main (median) ambulacra, and finally entered the mouth. Each of these ambulacra was roofed by cover plates. The cover plates of the brachiolar groove were movable and could open, allowing food to enter, or close as needed. Other cover plates may also have been movable.

Taxonomy[edit]

Blastoids are assumed to have evolved from the Cystoids.[2] Blastoids are subdivided into two orders: Fissiculata, which are characterized by direct entrance to the individual hydrospires by way of slits; and Spiraculata, which are characterized by indirect entrance to the hydrospires through canals by way of pores. The earliest blastoid yet found, Macurdablastus from the Middle Ordovician of Tennessee, cannot be classified as either order.

References[edit]

  1. ^ Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 1010. ISBN 0-03-056747-5. 
  2. ^ Palaeobiology and Biodiversity Research Group: Blastoids

External links[edit]

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