About: Placenticeratidae

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Placenticeratidae is an extinct family of mostly Late Cretaceous ammonites (cephalopod order Ammonitida) included in the superfamily Hoplitoidea, derived from the Engonoceratidae by an increase in suture complexity.

Attributes	Values
rdf:type	yago:WikicatAmmonites yago:Ammonite109195958 yago:Fossil109284589 yago:Object100002684 yago:PhysicalEntity100001930 yago:Remains109407346 insect
rdfs:label	Placenticeratidae (en)
rdfs:comment	Placenticeratidae is an extinct family of mostly Late Cretaceous ammonites (cephalopod order Ammonitida) included in the superfamily Hoplitoidea, derived from the Engonoceratidae by an increase in suture complexity. (en)
dct:subject	Hoplitoidea Maastrichtian extinctions Albian first appearances Ammonitida families Placenticeratidae
Wikipage page ID	33800168 (xsd:integer)
Wikipage revision ID	1121474694 (xsd:integer)
Link from a Wikipage to another Wikipage	Campanian Santonian Hoplitoidea Maastrichtian extinctions Albian first appearances Upper Cretaceous Cretaceous Engonoceratidae Maastrichtian Hoplitoidea Cephalopod Ammonitida Ammonitida families Placenticeras Placenticeratidae dbr:Hoplitoplacenticeras dbr:Hypengonoceras
sameAs	Placenticeratidae Placenticeratidae Placenticeratidae Placenticeratidae
dbp:wikiPageUsesTemplate	dbt:Automatic_taxobox dbt:Reflist dbt:Short_description dbt:Taxonbar dbt:Ammonitina-stub
authority	Hyatt, 1900 (en)
fossil range	Upper Cretaceous
taxon	Placenticeratidae (en)
has abstract	Placenticeratidae is an extinct family of mostly Late Cretaceous ammonites (cephalopod order Ammonitida) included in the superfamily Hoplitoidea, derived from the Engonoceratidae by an increase in suture complexity. Placeticeratids are characterized by rather involute compressed shells of moderate to large size with narrow flat or grooved venters (outer rims), at least on early whorls. Most are rather smooth or weakly ornamented except for a few later forms in which the outer whorls are strongly tuberculate. The suture has numerous, including auxiliary and adventive, elements. Saddles and lobes are typically deep, narrow necked, and raggedly embayed. The Placenticeratidae had their beginning in the Late Albian stage at the end of the Early Cretaceous, starting with . The type genus, Placenticeras, appears later and is known from the upper Santonian to the lower Campanian of the Upper Cretaceous. The family has the longest duration of the Hoplitaceae, extending well into the Maastrichtian, the final stage of the Cretaceous period with the genus . (en)
gold:hypernym	Family
prov:wasDerivedFrom	wikipedia-en:Placenticeratidae?oldid=1121474694&ns=0
page length (characters) of wiki page	1753 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Placenticeratidae
is Link from a Wikipage to another Wikipage of	Proplacenticeras Engonoceratidae Hoplitoidea Karamaites Placenticeras
is familia of	Proplacenticeras
is family of	Proplacenticeras
is foaf:primaryTopic of	wikipedia-en:Placenticeratidae

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