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- Discosorida abstract "Discosorida is an order of cephalopods that lived from the beginning of the Middle Ordovician, through the Silurian, and into the Devonian. Discosorids are unique in the structure and formation of the siphuncle, the tube that runs through and connects the camerae (chambers) in cephalopods, which unlike those in other orders is zoned longitudinally along the segments rather than laterally. Siphuncle structure indicated that Discosorida evolved directly from the Plectronoceratida rather than through the more developed Ellesmerocerida, as did the other orders. Finally and most diagnostic, discosorids developed a reinforcing, grommet-like structure in the septal opening of the siphuncle known as the bullette, formed by a thickening of the connecting ring as it draped around the folded back septal neck.".
- Discosorida class Cephalopod.
- Discosorida class Nautiloid.
- Discosorida kingdom Animal.
- Discosorida phylum Mollusca.
- Discosorida wikiPageExternalLink 5529362.
- Discosorida wikiPageExternalLink Discosorida.html.
- Discosorida wikiPageExternalLink Discosorida.
- Discosorida wikiPageID "10294367".
- Discosorida wikiPageRevisionID "569712057".
- Discosorida classis Cephalopod.
- Discosorida hasPhotoCollection Discosorida.
- Discosorida name "Discosorida".
- Discosorida ordo "Discosorida".
- Discosorida phylum Mollusca.
- Discosorida regnum Animal.
- Discosorida subclassis Nautiloid.
- Discosorida subject Category:Nautiloids.
- Discosorida type Animal.
- Discosorida type Eukaryote.
- Discosorida type Mollusca.
- Discosorida type Species.
- Discosorida type Mollusk.
- Discosorida type Organism.
- Discosorida comment "Discosorida is an order of cephalopods that lived from the beginning of the Middle Ordovician, through the Silurian, and into the Devonian. Discosorids are unique in the structure and formation of the siphuncle, the tube that runs through and connects the camerae (chambers) in cephalopods, which unlike those in other orders is zoned longitudinally along the segments rather than laterally.".
- Discosorida label "Discosorida".
- Discosorida label "Discosorida".
- Discosorida sameAs Discosorida.
- Discosorida sameAs m.02q7nh8.
- Discosorida sameAs Q3709951.
- Discosorida sameAs Q3709951.
- Discosorida wasDerivedFrom Discosorida?oldid=569712057.
- Discosorida isPrimaryTopicOf Discosorida.
- Discosorida name "Discosorida".