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- Placodermi abstract "Placodermi (from the Greek πλάξ = plate and δέρμα = skin, literally "plate-skinned") is an extinct class of armoured prehistoric fish, known from fossils, which lived from the Silurian to the end of the Devonian Period. Their head and thorax were covered by articulated armoured plates and the rest of the body was scaled or naked, depending on the species. Placoderms were among the first jawed fish; their jaws likely evolved from the first of their gill arches. Placoderms are paraphyletic, and comprise several distinct outgroups or sister taxa to all living jawed vertebrates, which originated among their ranks. This is illustrated by a 419-million-year-old fossil, Entelognathus, from China, which is the only known placoderm with a type of bony jaw like that found in modern bony fishes. This includes a dentary bone, which is found in humans and other tetrapods,. Placoderms were also the first fish to develop pelvic fins, the precursor to hindlimbs in tetrapods, as well as true teeth. 380-million-year-old fossils of three other genera, Incistoscutum, Materpiscis and Austroptyctodus, represent the oldest known example of live birth.The first identifiable placoderms appear in the fossil record during the late Llandovery epoch of the early Silurian. The various groups of placoderms were diverse and abundant during the Devonian, but became extinct at the end-Devonian Hangenberg event 360 million years ago".
- Placodermi thumbnail Bothriolepis_panderi.jpg?width=300.
- Placodermi wikiPageExternalLink first.html.
- Placodermi wikiPageExternalLink 453.abstract.
- Placodermi wikiPageExternalLink 6195188.stm.
- Placodermi wikiPageExternalLink 060.000.html.
- Placodermi wikiPageExternalLink m_panserhai_e.htm.
- Placodermi wikiPageExternalLink placodermi.html.
- Placodermi wikiPageID "949620".
- Placodermi wikiPageRevisionID "605608100".
- Placodermi authority "McCoy, 1848".
- Placodermi fossilRange "Late Llandovery – Late Devonian (If paraphyletic in relation to the rest of Gnathostomata, then modern jawed vertebrates represent extant forms)".
- Placodermi hasPhotoCollection Placodermi.
- Placodermi imageCaption "Fossil of Bothriolepis panderi showing its caliper-like pectoral fins".
- Placodermi imageWidth "250".
- Placodermi name "Placodermi".
- Placodermi subdivision Antiarchi.
- Placodermi subdivision Extinction.
- Placodermi subdivision "?Pseudopetalichthyida †".
- Placodermi subdivision "?Stensioellida †".
- Placodermi subdivision "Acanthothoraci †".
- Placodermi subdivision "Arthrodira †".
- Placodermi subdivision "Brindabellaspida †".
- Placodermi subdivision "Petalichthyida †".
- Placodermi subdivision "Phyllolepida †".
- Placodermi subdivision "Ptyctodontida †".
- Placodermi subdivision "Rhenanida †".
- Placodermi subdivisionRanks "Orders".
- Placodermi subject Category:Classes_(biology).
- Placodermi subject Category:Placoderms.
- Placodermi type Animal100015388.
- Placodermi type AquaticVertebrate101473806.
- Placodermi type Chordate101466257.
- Placodermi type LivingThing100004258.
- Placodermi type Object100002684.
- Placodermi type Organism100004475.
- Placodermi type PhysicalEntity100001930.
- Placodermi type Placoderm101480106.
- Placodermi type Placoderms.
- Placodermi type Vertebrate101471682.
- Placodermi type Whole100003553.
- Placodermi type Animal.
- Placodermi type BiologicalLivingObject.
- Placodermi type EukaryoticCell.
- Placodermi comment "Placodermi (from the Greek πλάξ = plate and δέρμα = skin, literally "plate-skinned") is an extinct class of armoured prehistoric fish, known from fossils, which lived from the Silurian to the end of the Devonian Period. Their head and thorax were covered by articulated armoured plates and the rest of the body was scaled or naked, depending on the species. Placoderms were among the first jawed fish; their jaws likely evolved from the first of their gill arches.".
- Placodermi label "Placodermes".
- Placodermi label "Placodermi".
- Placodermi label "Placodermi".
- Placodermi label "Placodermi".
- Placodermi label "Placodermi".
- Placodermi label "Placodermi".
- Placodermi label "Placodermo".
- Placodermi label "Ryby pancerne".
- Placodermi label "Панцирные рыбы".
- Placodermi label "لوحيات الأدمة".
- Placodermi label "板皮類".
- Placodermi label "盾皮魚綱".
- Placodermi sameAs Pancířnatci.
- Placodermi sameAs Placodermi.
- Placodermi sameAs Placodermi.
- Placodermi sameAs Plakodermo.
- Placodermi sameAs Placodermes.
- Placodermi sameAs Placodermi.
- Placodermi sameAs 板皮類.
- Placodermi sameAs 판피류.
- Placodermi sameAs Placodermi.
- Placodermi sameAs Ryby_pancerne.
- Placodermi sameAs Placodermo.
- Placodermi sameAs m.03smn1.
- Placodermi sameAs Q130932.
- Placodermi sameAs Q130932.
- Placodermi sameAs Placodermi.
- Placodermi wasDerivedFrom Placodermi?oldid=605608100.
- Placodermi depiction Bothriolepis_panderi.jpg.
- Placodermi isPrimaryTopicOf Placodermi.