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Xenacanthiformes

Xenacanthiformes (or Xenacanthida) is an order or superorder of extinct shark-like chondrichthyans (cartilaginous fish) known from the Carboniferous to the Late Triassic. They were native to freshwater, marginal marine, and shallow marine habitats. Some xenacanths may have grown to lengths of 5 m (16 ft). Most xenacanths died out at the end of the…

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Xenacanthiformes

Nodes63
Edges62
Triples53
Avg. degree1.97
Density0.031746
Components1

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Xenacanthiformes

Top relations

related to Subdivisions · 52
Xenacanthiformes → Australia, Barbclabornia Johnson, Bransonella Harlton, Bransonelliformes Hampe, Burrow, Carboniferous, Carboniferous-Permian, Datta, Desinia Ivanov, Dicentrodus Traquair, Diplodoselache Dick, Diplodoselachidae Dick, Early Carboniferous, Early Carboniferous-Late Permian, Early Carboniferous-Middle Permian, Early Permian, Elliott, Europe, Family, Genus

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Important terminology

xenacanths freshwater permian triassic triodus thought 2018 order xenacanthus carboniferous two group large environments early suggested late marine ft barbclabornia

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Triodus were only around 0.5 metresinstance ofWhile others0.80text
Xenacanthiformesrelated to SubdivisionsOrder0.60section
Xenacanthiformesrelated to SubdivisionsBransonelliformes Hampe0.60section
Xenacanthiformesrelated to SubdivisionsIvanov0.60section
Xenacanthiformesrelated to SubdivisionsBarbclabornia Johnson0.60section
Xenacanthiformesrelated to SubdivisionsEarly Permian0.60section
Xenacanthiformesrelated to SubdivisionsLate Carboniferous0.60section
Xenacanthiformesrelated to SubdivisionsNorth America0.60section
Xenacanthiformesrelated to SubdivisionsGenus0.60section
Xenacanthiformesrelated to SubdivisionsBransonella Harlton0.60section
Xenacanthiformesrelated to SubdivisionsEarly Carboniferous-Middle Permian0.60section
Xenacanthiformesrelated to SubdivisionsWorldwide0.60section

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