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RUTOCERATIDAE [1 record]

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Record 1 1977-07-15

English

Subject field(s)
  • Paleontology
OBS

[Cephalopods of the family rutoceratidae have] longiconic, curved and coiled shells characterized by development of wings, frills and spines which are either hollow and spoutlike or solid. Conchs [are] typically cyrtoconic and gyroconic, a few forms with slight impressed zones; [the] siphuncle [is] invariably ventral, generally orthochoanitic and empty; a few forms [are] cyrtochoanitic; some [are] known to have actinosiphonate deposits (...) "L.Dev.-L.Carb.

French

Domaine(s)
  • Paléontologie
OBS

[Les céphalopodes de la famille des rutoceratidae ont des] gyrocônes de section déprimée, arrondie; [un] siphon ventral, tubulaire ou faiblement dilaté, [une] ornementation très variée, avec souvent des lignes (ou cordons) spirales, longitudinales ("lirae").

Spanish

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