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Statements

Subject Item
dbr:Chasmataspidida
rdf:type
dbo:Band
rdfs:label
Chasmataspidida Chasmataspidida Chasmataspidida Chasmataspidida
rdfs:comment
Chasmataspidids, sometime referred to as chasmataspids, are a group of extinct chelicerate arthropods that form the order Chasmataspidida. Chasmataspidids are probably related to horseshoe crabs (Xiphosura) and/or sea scorpions (Eurypterida), with more recent studies suggest that they form a clade (Dekatriata) with Eurypterida and Arachnida. Chasmataspidids are known sporadically in the fossil record through to the mid-Devonian, with possible evidence suggesting that they were also present during the late Cambrian. Chasmataspidids are most easily recognised by having an opisthosoma divided into a wide forepart (preabdomen) and a narrow hindpart (postabdomen) each comprising 4 and 9 segments respectively. There is some debate about whether they form a natural (i.e. monophyletic) group. カスマタスピス類(Chasmataspidid, Chasmataspid, 学名:Chasmataspidida)は、鋏角類に属する化石節足動物の分類群(目)の1つ。カブトガニやウミサソリに似た姿で、4節の幅広い前腹部と9節の細い後腹部をもつ。代表的なだけでなく、など十数種も含まれる。 少なくとも古生代のオルドビス紀からデボン紀にかけて生息し、さらに早期のカンブリア紀から本群由来の可能性がある生痕化石も発見される。希少で未だに不明点が多く、ウミサソリなどとの類縁関係が議論の的となっている。 Chasmataspidida ist eine ausgestorbene Ordnung innerhalb der Kieferklauenträger (Chelicerata). I casmataspididi (Chasmataspidida), a volte indicati come casmataspidi (Chasmataspida), sono un gruppo di artropodi chelicerati estinti, forse imparentati con gli xifosuri, gli euripteridi o gli aracnidi. Vissero tra l'Ordoviciano medio e il Devoniano medio (circa 470 - 390 milioni di anni fa) e i loro resti fossili sono stati ritrovati in Europa, Nordamerica e Asia.
dbp:name
Chasmataspidida
foaf:depiction
n10:Eurypterid_and_chasmataspidid_sixth_appendage_comparison.png n10:Hoplitaspis_hiawathai_life_restoration.png n10:Hoplitaspis_hiawathai_5.png n10:Geographical_distribution_of_chasmataspidid_fossils.png n10:20210202_Chasmataspidida_size_comparison.png n10:20200606_Chasmataspis_laurencii.png n10:20200607_Chasmataspidida_Octoberaspis_Hoplitaspis_Chasmataspis_Diploaspis.png n10:20200605_Hoplitaspis_hiawathai.png n10:20200605_Octoberaspis_ushakovi.png n10:20200919_Chasmataspidida_dorsal.png n10:20200610_Dvulikiaspis_menneri.png n10:20200731_Diploaspis_casteri.png n10:Forfarella_mitchelli_restoration.png
dcterms:subject
dbc:Chasmataspidida dbc:Arthropod_orders dbc:Silurian_arthropods dbc:Prehistoric_chelicerates dbc:Ordovician_arthropods dbc:Devonian_arthropods
dbo:wikiPageID
13860559
dbo:wikiPageRevisionID
1089970663
dbo:wikiPageWikiLink
n7:Origin_of_Vertebrates_Fig_005.png dbr:Arthropods dbr:Skrytyaspis dbr:Polyphyletic dbr:Compound_eye dbr:Scotland dbr:Chelicerate dbr:Bertie_Group dbr:Chelicerates dbr:October_Revolution_Island n7:Die_Pantopoden_der_deutschen_Tiefsee-Expedition_1898-1899_(1902))_(20928914062).jpg dbr:Cambrian dbr:Monotypic n7:Haeckel-Eurypterida1024.jpg dbr:Forfarella dbr:Lyall_Anderson n7:Haeckel_Arachnida.jpg dbr:Dekatriata dbc:Chasmataspidida dbr:Ordovician dbr:Pycnogonida dbr:Diploaspididae dbr:Exoskeleton dbr:Phylogenetic dbr:Achanarraspis dbr:Michigan dbr:Taymyr_Peninsula dbr:Silurian dbr:Devonian dbr:Imangda_River dbr:Big_Hill_Lagerstätte dbr:Octoberaspis dbr:Diploaspis n7:Geographical_distribution_of_chasmataspidid_fossils.png dbr:Kiaeria_limuloides dbr:Sternites dbr:Prosoma dbr:Eurypterid dbr:Chela_(organ) dbr:Eurypterida dbr:Eurypterina dbr:Telson dbc:Arthropod_orders dbr:Chasmataspididae dbr:Arachnida dbr:Arachnids n7:20200605_Octoberaspis_ushakovi.png n7:20200606_Chasmataspis_laurencii.png dbr:Eurypterids n7:20200607_Chasmataspidida_Octoberaspis_Hoplitaspis_Chasmataspis_Diploaspis.png n7:20200607_Diploaspis_praecursor.png dbr:Opisthosoma n7:20200605_Hoplitaspis_hiawathai.png dbr:Chasmataspis dbr:Trace_fossil dbr:Tergite n7:20200610_Dvulikiaspis_menneri.png dbr:Carapace n7:20200731_Diploaspis_casteri.png dbc:Prehistoric_chelicerates dbr:Loganamaraspis dbr:Paraphyletic dbr:Chelicerae dbr:Book_gills dbr:Caithness n7:Forfarella_mitchelli_restoration.png dbr:Nahlyostaspis dbr:Xiphosuran dbc:Silurian_arthropods dbr:Lesmahagow dbr:Euchelicerata dbr:Chelicerata dbr:Hoplitaspis dbr:Metastoma dbr:Douglas_Dam dbr:Parallel_evolution dbc:Devonian_arthropods dbr:Heteroaspis dbr:Order_(biology) dbr:Monophyletic dbr:Xiphosura n23:Sclerophorata dbr:Dvulikiaspis dbr:Gnathobases dbc:Ordovician_arthropods dbr:Stylonurus dbr:Arthropod
owl:sameAs
dbpedia-de:Chasmataspidida dbpedia-vi:Chasmataspidida yago-res:Chasmataspidida n18:9fVH dbpedia-it:Chasmataspidida dbpedia-ja:Chasmataspidida wikidata:Q1068066
dbp:wikiPageUsesTemplate
dbt:Taxonbar dbt:Automatic_taxobox dbt:Short_description dbt:Reflist dbt:Clade dbt:Fossil_range dbt:Cladogram
dbo:thumbnail
n10:Hoplitaspis_hiawathai_5.png?width=300
dbp:align
right
dbp:authority
Caster & Brooks, 1956
dbp:caption
Summarized phylogenetic position of Chasmataspidida as of 2010s. Internal phylogeny of Chasmataspidida based on Selden, Lamsdell & Liu , with addition of Diploaspis praecursor based on Lamsdell & Briggs .
dbp:fossilRange
(Possible Cambrian record)
dbp:image
20200607
dbp:imageCaption
Fossils of Hoplitaspis hiawathai.
dbp:subdivision
*†Chasmataspididae (Caster & Brooks, 1956) *†Diploaspididae (Størmer, 1972) *†Kiaeria (Størmer, 1934)
dbp:subdivisionRanks
Clades
dbp:synonyms
*Diploaspidida (Simonetta & Delle Cave, 1978)
dbp:taxon
Chasmataspidida
dbo:abstract
Chasmataspidids, sometime referred to as chasmataspids, are a group of extinct chelicerate arthropods that form the order Chasmataspidida. Chasmataspidids are probably related to horseshoe crabs (Xiphosura) and/or sea scorpions (Eurypterida), with more recent studies suggest that they form a clade (Dekatriata) with Eurypterida and Arachnida. Chasmataspidids are known sporadically in the fossil record through to the mid-Devonian, with possible evidence suggesting that they were also present during the late Cambrian. Chasmataspidids are most easily recognised by having an opisthosoma divided into a wide forepart (preabdomen) and a narrow hindpart (postabdomen) each comprising 4 and 9 segments respectively. There is some debate about whether they form a natural (i.e. monophyletic) group. Chasmataspidida ist eine ausgestorbene Ordnung innerhalb der Kieferklauenträger (Chelicerata). I casmataspididi (Chasmataspidida), a volte indicati come casmataspidi (Chasmataspida), sono un gruppo di artropodi chelicerati estinti, forse imparentati con gli xifosuri, gli euripteridi o gli aracnidi. Vissero tra l'Ordoviciano medio e il Devoniano medio (circa 470 - 390 milioni di anni fa) e i loro resti fossili sono stati ritrovati in Europa, Nordamerica e Asia. カスマタスピス類(Chasmataspidid, Chasmataspid, 学名:Chasmataspidida)は、鋏角類に属する化石節足動物の分類群(目)の1つ。カブトガニやウミサソリに似た姿で、4節の幅広い前腹部と9節の細い後腹部をもつ。代表的なだけでなく、など十数種も含まれる。 少なくとも古生代のオルドビス紀からデボン紀にかけて生息し、さらに早期のカンブリア紀から本群由来の可能性がある生痕化石も発見される。希少で未だに不明点が多く、ウミサソリなどとの類縁関係が議論の的となっている。
dbp:image2Caption
Reconstruction of Dvulikiaspis menneri , Octoberaspis ushakovi , Hoplitaspis hiawathai , Chasmataspis laurencii and Diploaspis casteri .
gold:hypernym
dbr:Group
prov:wasDerivedFrom
wikipedia-en:Chasmataspidida?oldid=1089970663&ns=0
dbo:wikiPageLength
31065
foaf:isPrimaryTopicOf
wikipedia-en:Chasmataspidida