Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Armenoceratidae> ?p ?o. }
Showing items 1 to 46 of
46
with 100 items per page.
- Armenoceratidae abstract "Armenoceratidae is a family of early Paleozoic nautiloid cephalopods belonging to the Order Actinocerida.The Armenoceratidae, established by Troedsson (1926) is characterized by large, straight or slightly curved shells and large siphuncles with strongly expanded segments between the septa. Septal necks are short and abruptly recurved along brims. Radial canals in the endosiphuncular canal system are typically arched, curving forward and backward from near the septal foramina (openings) to connect with the parispatium on either side of the middle of each segments. The parispatium is the narrow opening between the inner side of the connecting rings in actinocerids and the internal siphuncular deposits that grow forward and back from the region of the septal openings. The Armenoceratidae have their beginning in Armenoceras which first appeared near the beginning of the Chazyan, 2nd stage of the Middle Ordovician in older established chronologies, in northeastern China, Manchuria., derived from Wutinoceras. Additional genera include Nybyoceras and Selkirkoceras, respectively from the upper Middle and Upper Ordovician, and Monocyrtoceras, Elrodoceras, and Megadiscoceras from the Silurian,The Armenoceratidae, Armenoceras, Nybyoceras, and Selkirkoceras first appear in North America in the diverse cephalopod Redriveran faunas of the early Upper Ordovician but are no longer found during that stage in Asia. Selkirkoceras is a large armenocerid from the Upper Ordovician with a blunt, flattened, somewhat breviconic shell.Among the Silurian genera, Elrodoceras has a large shell with the apical part slightly curved, otherwise is straight, and a siphuncle that is narrower than in Armenoceras. Monocyrtoceras has a siphuncle like that of Elrodoceras, but the entire shell is gently and evenly curved. Megadiscosorus is similar to Armenoceras but more breviconic and slightly exogastrically cyrtoconic and with the siphuncle in contact with the ventral wall. The Armenoceratidae most likely gave rise through Armenoceras to Gonioceras in the Chazyan, and later in the Middle Ordovician possibly through either an early Armenoceras or Nybyoceras to Actinoceras".
- Armenoceratidae class Cephalopod.
- Armenoceratidae class Nautiloid.
- Armenoceratidae kingdom Animal.
- Armenoceratidae order Actinocerida.
- Armenoceratidae phylum Mollusca.
- Armenoceratidae wikiPageID "24625378".
- Armenoceratidae wikiPageRevisionID "604078479".
- Armenoceratidae classis "Cephalopoda".
- Armenoceratidae familia "Armenoceratidae".
- Armenoceratidae familiaAuthority "Troedsson".
- Armenoceratidae fossilRange "M Ordovician - Silurian".
- Armenoceratidae hasPhotoCollection Armenoceratidae.
- Armenoceratidae name "Armenoceratidae".
- Armenoceratidae ordo Actinocerida.
- Armenoceratidae phylum Mollusca.
- Armenoceratidae regnum "Animalia".
- Armenoceratidae subclassis Nautiloid.
- Armenoceratidae subdivision "see text.".
- Armenoceratidae subdivisionRanks "Genera".
- Armenoceratidae subject Category:Nautiloids.
- Armenoceratidae subject Category:Ordovician_animals.
- Armenoceratidae subject Category:Silurian_animals.
- Armenoceratidae type Animal100015388.
- Armenoceratidae type LivingThing100004258.
- Armenoceratidae type Object100002684.
- Armenoceratidae type OrdovicianAnimals.
- Armenoceratidae type Organism100004475.
- Armenoceratidae type PhysicalEntity100001930.
- Armenoceratidae type SilurianAnimals.
- Armenoceratidae type Whole100003553.
- Armenoceratidae type Animal.
- Armenoceratidae type Eukaryote.
- Armenoceratidae type Mollusca.
- Armenoceratidae type Species.
- Armenoceratidae type Mollusk.
- Armenoceratidae type Organism.
- Armenoceratidae comment "Armenoceratidae is a family of early Paleozoic nautiloid cephalopods belonging to the Order Actinocerida.The Armenoceratidae, established by Troedsson (1926) is characterized by large, straight or slightly curved shells and large siphuncles with strongly expanded segments between the septa. Septal necks are short and abruptly recurved along brims.".
- Armenoceratidae label "Armenoceratidae".
- Armenoceratidae sameAs m.080b24p.
- Armenoceratidae sameAs Q4793378.
- Armenoceratidae sameAs Q4793378.
- Armenoceratidae sameAs Armenoceratidae.
- Armenoceratidae wasDerivedFrom Armenoceratidae?oldid=604078479.
- Armenoceratidae isPrimaryTopicOf Armenoceratidae.
- Armenoceratidae name "Armenoceratidae".