Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Placodontia

Placodonts ("tablet teeth") are an extinct order of marine reptiles that lived during the Triassic period, becoming extinct at the end of the period. They were part of Sauropterygia, the group that includes plesiosaurs. Placodonts were generally between 1 and 2 m (3 ft 3 in and 6 ft 7 in) in length, with some of the largest measuring 3 m (9.8 ft) long.

Art, Palaeobiology & Classification

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Placodontia. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Palaeobiology

PlacodusMarine iguanaAlgaeMolluscsSharks
23 related topics

Classification

ReptiliaPararcusParaplacodontidaeParaplacodusPlacodontidae
19 related topics

Overview

TabletTeethExtinctOrderReptiles
12 related topics

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Palaeobiology

Classification

Sources

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Placodontia

Nodes68
Edges67
Triples86
Avg. degree1.97
Density0.029412
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Placodontia

Top relations

related to Sources · 74
Placodontia → Abhandlungen, Academic Press, Académie, Bardet, Bibcode, Biology, Cie, Cite, Comptes Rendus, Cox, Cyamodontidae, Cyamodus, Description, Die Placodontier, Evolution, Fieldiana Geology, French, Geobios, German, Historical Biology
related to Classification · 12
Placodontia → Atopodentatus, Class ReptiliaSuperorder SauropterygiaOrder PlacodontiaGenus, Genus PararcusSuperfamily PlacodontoideaFamily ParaplacodontidaeGenus, Middle Triassic, Netherlands, Palatodonta, ParahenodusFamily CyamodontidaeGenus CyamodusGenus ProtenodontosaurusFamily, ParaplacodusFamily PlacodontidaeGenus PlacodusSuperfamily CyamodontoideaGenus, PlacochelyidaeGenus GlyphodermaGenus PlacochelysGenus PsephosauriscusGenus, Placodontiformes, PsephochelysGenus Psephoderma Additionally, SinocyamodusGenus PsephosaurusFamily HenodontidaeGenus HenodusGenus

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

placodonts placodus doi teeth triassic 10 reptiles atopodentatus marine paraplacodus genus bibcode journal new order similar sea placodont des mazin

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Placodontiarelated to ClassificationClass ReptiliaSuperorder SauropterygiaOrder PlacodontiaGenus0.60section
Placodontiarelated to ClassificationAtopodentatus0.60section
Placodontiarelated to ClassificationGenus PararcusSuperfamily PlacodontoideaFamily ParaplacodontidaeGenus0.60section
Placodontiarelated to ClassificationParaplacodusFamily PlacodontidaeGenus PlacodusSuperfamily CyamodontoideaGenus0.60section
Placodontiarelated to ClassificationSinocyamodusGenus PsephosaurusFamily HenodontidaeGenus HenodusGenus0.60section
Placodontiarelated to ClassificationParahenodusFamily CyamodontidaeGenus CyamodusGenus ProtenodontosaurusFamily0.60section
Placodontiarelated to ClassificationPlacochelyidaeGenus GlyphodermaGenus PlacochelysGenus PsephosauriscusGenus0.60section
Placodontiarelated to ClassificationPsephochelysGenus Psephoderma Additionally0.60section
Placodontiarelated to ClassificationPlacodontiformes0.60section
Placodontiarelated to ClassificationPalatodonta0.60section
Placodontiarelated to ClassificationMiddle Triassic0.60section
Placodontiarelated to ClassificationNetherlands0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.