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Acanthodii

Acanthodii or acanthodians is an extinct class of gnathostomes (jawed fishes). They are currently considered to represent a paraphyletic grade of various fish lineages basal to extant Chondrichthyes, which includes living sharks, rays, and chimaeras. Acanthodians possess a mosaic of features shared with both osteichthyans (bony fish) and chondrichthyans…

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Characteristics

ScalesThelodontsSilurianCoal swampsCarboniferous
12 related topics

Evolutionary history

FanjingshaniaQianodusLochkovianPragianEmsian
6 related topics

Overview

GnathostomesFishesParaphyleticGradeBasal
32 related topics

Taxonomy and phylogeny

AcanthodesEntelognathusTetrapodsDoliodusTamiobatis
6 related topics

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Overview

Characteristics

Taxonomy and phylogeny

Evolutionary history

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Map overview Semantic statistics

Acanthodii

Nodes61
Edges60
Triples33
Avg. degree1.97
Density0.032787
Components1

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Acanthodii

Top relations

related to Taxonomy and phylogeny · 12
Acanthodii → Acanthodes, Burrow, Chondrichthyes, Davis, Doliodus, Entelognathus, However, In, Osteichthyes, Silurian, Tamiobatis, The
related to Characteristics · 11
Acanthodii → Because, By, Carboniferous, Despite, Devonian, Later, Ordovician, Permian, Scales, Silurian Period, The
related to External links · 6
Acanthodii → Acanthodiformes, Acanthodopsis, Archived, Climatiiformes, Ischnacanthiformes, PALAEOZOIC FISH UK

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Important terminology

acanthodians bony scales sharks fish cartilaginous fishes citation needed climatiiformes considered silurian spines fins diplacanthiformes permian jaws paraphyletic chondrichthyes acanthodiformes

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
climatiidsinstance ofis a paraphyletic assemblage of early acanthodians0.80text
gyracanthidsinstance ofis a paraphyletic assemblage of early acanthodians0.80text
and diplacanthidsinstance ofis a paraphyletic assemblage of early acanthodians0.80text
thelodontsinstance ofand may actually belong to jawless fishes0.80text
Acanthodiirelated to CharacteristicsThe0.60section
Acanthodiirelated to CharacteristicsBecause0.60section
Acanthodiirelated to CharacteristicsDespite0.60section
Acanthodiirelated to CharacteristicsScales0.60section
Acanthodiirelated to CharacteristicsOrdovician0.60section
Acanthodiirelated to CharacteristicsSilurian Period0.60section
Acanthodiirelated to CharacteristicsLater0.60section
Acanthodiirelated to CharacteristicsDevonian0.60section

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