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Placoderm

Placoderms (from Ancient Greek πλάξ 'plate' and δέρμα 'skin') are vertebrate animals of the class Placodermi, an extinct group of prehistoric fish known from Paleozoic fossils during the Silurian and the Devonian periods. While their endoskeletons are mainly cartilaginous, their head and thorax were covered by articulated armoured plates (hence the…

Characters, History & Art

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Overview

Characteristics

History of study

Evolution and extinction

Taxonomy and phylogeny

Cladogram

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Map overview Semantic statistics

Placoderm

Nodes192
Edges191
Triples93
Avg. degree1.99
Density0.010417
Components1

How this topic connects Entity context

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Placoderm

Top relations

related to Characteristics · 30
Placoderm → Amazichthys, Antiarchi, Bothriolepis, Compagopiscis, Dunkleosteus, Europe, Fallacosteus, Gogo Formation, Heterosteus, Holonema, Homostiidae, However, In, Late Devonian, Many, Middle, Middle-Late Devonian, Morocco, North America, One
related to Fossil record · 16
Placoderm → At, Chinese, Earlier, Entelognathus, Qilinyu, Silurian, Silurian China, Silurian-aged, Silurolepis, So, Some, The, The Silurian, Until, Vietnam, Wangolepis
related to history · 14
Placoderm → After, Dr, Erik Stensiö, He, In, Louis Agassiz, Many, Natural History, Once, Some, Stensiö, Stockholm, Swedish Museum, The
related to Taxonomy and phylogeny · 10
Placoderm → Currently, Fossils, Hunsruck, One, Placodermi, Pseudopetalichthyida, Stensioella, Stensioellida, There, These
related to External links · 8
Placoderm → Annetta Markussen-Brown, CS1, Devonian Armoured Fish, Dunkleosteus, OverviewBBC, PALAEOZOIC FOSSILS UK, Placodermi Extinct, PlacodermsPlacodermi
related to Cladogram · 5
Placoderm → Carr, Eugnathostomata, However, The, Zhu
related to Evolution and extinction · 4
Placoderm → Devonian, It, Late Devonian, With
see also · 2
Placoderm → AcanthodiiList, Paleontology
is a · 1
Placoderm → antiarch

Important terminology Word statistics

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Important terminology

placoderms devonian fish known first fossils arthrodires fossil plates silurian predators group found early rhenanida fins sharks specimens armour thought

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Placodermis aantiarch0.90text
Eastmanosteusinstance ofproducing some of the first and most infamous vertebrate apex predators0.80text
Dinichthysinstance ofproducing some of the first and most infamous vertebrate apex predators0.80text
the massive Dunkleosteusinstance ofproducing some of the first and most infamous vertebrate apex predators0.80text
Placodermrelated to CharacteristicsMany0.60section
Placodermrelated to CharacteristicsRhenanida0.60section
Placodermrelated to CharacteristicsPetalichthyida0.60section
Placodermrelated to CharacteristicsPhyllolepida0.60section
Placodermrelated to CharacteristicsAntiarchi0.60section
Placodermrelated to CharacteristicsIn0.60section
Placodermrelated to CharacteristicsMiddle-Late Devonian0.60section
Placodermrelated to CharacteristicsMiddle0.60section

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    Min side: 3
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