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- Allotrioceratidae abstract "The Allotrioceratidae is a family of Middle Ordovician fossils, established by Rousseau Flower, 1955, originally including Allotrioceras and Mirabilocras, assigned inferentially to the Endocerida and known only from structures interpreted as siphuncles. Later Williamsoceras, Cacheoceras, and Perkinsoceras (Flower 1968, 1976) were added. Similar Allotrioceras and Mirabiloceras, known only from the Chazyan (upper lower MIddle Ordovican) of New York, are tubular organisms with complex interiors somewhat resembling that of the Endocerida. The later added Williamsoceras, Cacheoceras, and Perkinsoceras are true endocerids as indicated by their cylindroid shells, phragmocones, and siphuncles. Williamsoceras and Cacheoceras are from the Whiterockian stage (lower lower Middle Ordovian) of Utah. Perkinsoceras, which appeared somewhat later, is from the Chazyan of New York, like Allotrioceras and Mirabilioceras but rather distinct from either.The Allotrioceratidae of Rousseau Flower (Flower 1955) is defined on the basis a structure within the siphuncle, assumed or real, known as an infula that consists of a thin dark, arcuate or curved, line with dark spots interpreted as endosiphunclular tubules. Allotrioceras and Mirabilioceras also have internal subdividing structures that somewhat resemble the longitudinal processes found the the siphuncles of some endocerids including Williamsoceras, Cacheoceras, and Perkinsoceras.The holotypes of Allotrioceras and Mirabiloceras are housed in the collections of the New Mexico Museum of Natural History and Science in Albuquerque, New Mexico.".
- Allotrioceratidae class Cephalopod.
- Allotrioceratidae kingdom Animal.
- Allotrioceratidae phylum Mollusca.
- Allotrioceratidae wikiPageID "42490017".
- Allotrioceratidae wikiPageRevisionID "604180364".
- Allotrioceratidae classis Cephalopod.
- Allotrioceratidae familia "Allotrioceratidae".
- Allotrioceratidae familiaAuthority "Flower, 1955".
- Allotrioceratidae fossilRange Ordovician.
- Allotrioceratidae name "Allotrioceratidae".
- Allotrioceratidae phylum Mollusca.
- Allotrioceratidae regnum Animal.
- Allotrioceratidae subject Category:Ordovician_animals.
- Allotrioceratidae type Animal.
- Allotrioceratidae type Eukaryote.
- Allotrioceratidae type Mollusca.
- Allotrioceratidae type Species.
- Allotrioceratidae type Organism.
- Allotrioceratidae comment "The Allotrioceratidae is a family of Middle Ordovician fossils, established by Rousseau Flower, 1955, originally including Allotrioceras and Mirabilocras, assigned inferentially to the Endocerida and known only from structures interpreted as siphuncles. Later Williamsoceras, Cacheoceras, and Perkinsoceras (Flower 1968, 1976) were added.".
- Allotrioceratidae label "Allotrioceratidae".
- Allotrioceratidae sameAs m.010fhtkw.
- Allotrioceratidae sameAs Q16974086.
- Allotrioceratidae sameAs Q16974086.
- Allotrioceratidae wasDerivedFrom Allotrioceratidae?oldid=604180364.
- Allotrioceratidae isPrimaryTopicOf Allotrioceratidae.
- Allotrioceratidae name "Allotrioceratidae".