Primoridae ( Lat. Protostomia ) - taxon of multicellular animals from the Bilateria group. During the period of embryonic development, a mouth forms at the site of their primary mouth ( blastopore ) or, with a slit-like closure of the blastopore, a mouth and anus . In this, they differ from the secondary ones , in which the anal opening forms in place of the blastopore, and the oral opening later in another place.
| Primary | |||||||||||
 Grape Snails ( Helix pomatia ) | |||||||||||
| Scientific classification | |||||||||||
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| International Scientific Name | |||||||||||
Protostomia Grobben, 1908 | |||||||||||
| Subordinate Groups | |||||||||||
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Content
Primary classifications
Ecdysozoa Hypothesis
- overtype molt ( Ecdysozoa )
- type roundworms ( Nematoda )
- type of onychophora ( Onychophora )
- slow-moving type ( Tardigrada )
- hair type ( Nematomorpha )
- arthropod type ( Arthropoda )
- treasure Scalidophora
- class Priapulida ( Priapulida )
- class Loricifera ( Loricifera )
- Kinorhyncha class
- supratype spiral ( Lophotrochozoa )
- type of mollusca ( Mollusca )
- type of nemertea ( Nemertea )
- type annelids ( Annelida )
- bryozoa type ( Bryozoa )
- brachopod type ( Brachiopoda )
- type of echiura ( Echiura )
- type of phoronids ( Phoronida )
- type of sipuncula ( Sipuncula )
- type of cyclophores ( Cycliophora )
- type of intrapowder ( Entoprocta )
- nattype Platyzoa
- type flatworms ( Plathelminthes )
- type of abdominal worms , or gastrotrichi ( Gastrotricha )
- type of gnatostomulida ( Gnathostomulida )
- type of maxillary ( Micrognathozoa )
- rotifers type ( Rotatoria )
- type of scrapers ( Acanthocephala )
The Holistic Hypothesis
According to the obsolete coelomic hypothesis, types are grouped as follows [1] :
- type flatworms ( Plathelminthes )
- type of abdominal ( Gastrotricha )
- type of gnatostomulida ( Gnathostomulida )
- type of maxillary ( Micrognathozoa )
- rotifers type ( Rotatoria )
- type of scrapers ( Acanthocephala )
- type roundworms ( Nematoda )
- Cephalorhyncha
- hair type ( Nematomorpha )
- type of priapulida ( Priapulida )
- Kinorhyncha type
- Loricifera type ( Loricifera )
- Coelomata
- Trochozoa
- type of cyclophores ( Cycliophora )
- type of intrapowder ( Entoprocta )
- type of mollusca ( Mollusca )
- type of sipuncula ( Sipuncula )
- Articulata
- type of echiura ( Echiura )
- type annelids ( Annelida , including Pogonophora )
- Panarthropoda
- type of onychophora ( Onychophora )
- slow-moving type ( Tardigrada )
- arthropod type ( Arthropoda )
- Tentaculata
- bryozoa type ( Bryozoa )
- type of phoronids ( Phoronida )
- brachopod type ( Brachiopoda )
- Trochozoa
Notes
- β Markov A. New data made it possible to clarify the pedigree of the animal kingdom . Element.ru site news , April 2008. (Retrieved February 27, 2010)