Lytoceratidae
Lytoceratidae is a taxonomic family of ammonoid cephalopods belonging to the suborder Lytoceratina, characterized by very evolute shells that generally enlarge rapidly, having whorls in contact but mostly overlapping very sightly, or not at all. Surface ornament may consist of various combinations of straight or crinkled growth lines, flares, constrictions, and, more rarely, plications. Sutures are highly complex and moss-like, but with few major elements. Lateral lobes are widely splayed and blunt, or with obliquely deflected end. The external, ventral, lobe is short.
AdnethicerasAlocolytocerasArgonauticerasAsapholytocerasAudaxlytocerasBouhamidocerasEulytocerasHemilytocerasLobolytocerasLytocerasLytoceras batesiLytoceras cornucopiaLytoceras eudesianumLytoceras fimbriatumLytoceras sutileMacroscaphitesMegalytocerasMetrolytocerasPerilytocerasProtetragonitesPtycholytoceras
family
2012 in molluscan paleontology2015 in molluscan paleontology2016 in molluscan paleontologyAdnethicerasAlocolytocerasAmmonoceratitesArgonauticerasAsapholytocerasAudaxlytocerasBouhamidocerasDactyliocerassandstein FormationEulytocerasHemilytocerasKossmatellaLobolytocerasLytocerasLytoceras batesiLytoceras cornucopiaLytoceras eudesianumLytoceras fimbriatumLytoceras sutileLytoceratinaLytoceratinaeMacroscaphitesMegalytocerasMegalytoceratinaeMetrolytocerasNannolytocerasPaleobiota of the Ciechocinek FormationPaleobiota of the Posidonia ShalePerilytocerasProtetragonitesPtycholytocerasSaubach FormationTurrilitinaÚrkút Manganese Ore Formation
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AdnethicerasAlocolytocerasArgonauticerasAsapholytocerasAudaxlytocerasBouhamidocerasEulytocerasHemilytocerasLobolytocerasLytocerasLytoceras batesiLytoceras cornucopiaLytoceras eudesianumLytoceras fimbriatumLytoceras sutileMacroscaphitesMegalytocerasMetrolytocerasPerilytocerasProtetragonitesPtycholytoceras
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Lytoceratidae
Lytoceratidae is a taxonomic family of ammonoid cephalopods belonging to the suborder Lytoceratina, characterized by very evolute shells that generally enlarge rapidly, having whorls in contact but mostly overlapping very sightly, or not at all. Surface ornament may consist of various combinations of straight or crinkled growth lines, flares, constrictions, and, more rarely, plications. Sutures are highly complex and moss-like, but with few major elements. Lateral lobes are widely splayed and blunt, or with obliquely deflected end. The external, ventral, lobe is short.
has abstract
Lytoceratidae is a taxonomic f ...... Upper Cretaceous (Cenomanian).
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authority
Newmayr, 1875
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image caption
Fossil shells of Lytoceras cor ...... t d'anatomie comparée in Paris
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subdivision
See text
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subdivision ranks
Subfamilies
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taxon
Lytoceratidae
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subject
hypernym
comment
Lytoceratidae is a taxonomic f ...... ernal, ventral, lobe is short.
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label
Lytoceratidae
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