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Statements

Subject Item
dbr:Unionopterus
rdf:type
geo:SpatialThing
rdfs:label
Unionopterus
rdfs:comment
Unionopterus is a genus of eurypterid, an extinct group of aquatic arthropods commonly known as "sea scorpions". Fossils have been registered from the Early Carboniferous period. The genus contains only one species, U. anastasiae, recovered from deposits of Tournaisian to Viséan stages in Kazakhstan. Known from one single specimen (now presumed to be lost) which was described in a publication of Russian language with poor illustrations, Unionopterus' affinities are extremely poorly known.
geo:lat
49.83333206176758
geo:long
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foaf:depiction
n12:Adelophthalmus_irinae.png n12:Unionopterus_anastasiae_fossil.png n12:Unionopterus_anastasiae_opisthosomal_segments.png n12:Unionopterus_anastasiae_carapace_restoration.png
dcterms:subject
dbc:Controversial_taxa dbc:Carboniferous_animals_of_Asia dbc:Eurypterids_of_Asia dbc:Fossil_taxa_described_in_1948 dbc:Fossils_of_Kazakhstan dbc:Eurypterida dbc:Carboniferous_eurypterids
dbo:wikiPageID
21358694
dbo:wikiPageRevisionID
1070978402
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dbr:Abdomen dbr:Outgroup_(cladistics) dbr:Early_Carboniferous dbr:Distal dbr:Podomere dbr:Anatomical_terms_of_location dbr:Phylogenetic dbr:Timeline_of_eurypterid_research dbr:Karaganda n9:Unionopterus_anastasiae_opisthosomal_segments.png dbr:Clade dbr:Adelophthalmid dbr:Russian_language dbr:Adelophthalmoidea dbr:Deposition_(geology) dbr:Morphology_(biology) dbr:Segmentation_(biology) dbr:Parahughmilleria dbr:Pterygotoidea dbr:Genus n9:Adelophthalmus_irinae.png dbr:Scale_(anatomy) dbr:Metasoma dbr:Borehole dbr:Slimonia dbr:Benthic dbr:Acutiramus dbr:Jaekelopterus dbr:Chelicerae dbr:Thesis dbr:Kazakhstan dbr:Stage_(stratigraphy) dbr:Carcinosomatoidea dbr:Nanahughmilleria dbr:Aquatic_locomotion dbc:Controversial_taxa dbr:Pittsfordipterus dbr:Spine_(zoology) dbr:Coal dbr:Hughmilleria dbr:Chitin dbr:Specific_epithet dbr:Geologist dbr:List_of_eurypterid_genera dbr:Suborder dbc:Eurypterids_of_Asia dbr:Viséan dbc:Carboniferous_animals_of_Asia dbr:Fossil dbc:Fossil_taxa_described_in_1948 dbr:Arthropod_leg dbr:Opisthosoma dbr:Waeringopteroid dbr:Telson dbr:Xiphosura dbr:Mesosoma dbr:Basal_(phylogenetics) dbr:Prosoma dbr:Waterbody dbr:Tournaisian dbr:Species dbr:Waeringopteroidea dbr:Biological_ornament dbr:Adelophthalmidae dbr:Devonian dbr:Adelophthalmus dbr:Metastoma dbr:Order_(biology) dbr:Diploperculata dbr:Ocelli dbc:Carboniferous_eurypterids dbr:Cladogram dbr:Soviet_Union dbr:Paleontologist dbr:Herefordopterus dbr:Pterygotidae dbr:Eurypterus dbr:Compound_eyes dbc:Eurypterida dbr:Karaganda_Formation dbr:Lateral_(anatomy) dbr:Carboniferous dbr:Seam_(geology) dbr:Belgium dbc:Fossils_of_Kazakhstan dbr:Eurypterid dbr:Nekton dbr:Anterior dbr:Arthropod dbr:Incertae_sedis dbr:Extinct dbr:Genera dbr:Tergite dbr:Family_(biology)
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dbt:Location_map dbt:Good_article dbt:Reflist dbt:Fossil_range dbt:Short_description dbt:Clade dbt:Coord dbt:' dbt:Taxonbar dbt:Automatic_taxobox dbt:Eurypterida
dbo:thumbnail
n12:Unionopterus_anastasiae_fossil.png?width=300
dbp:image2Upright
0.5
dbp:authority
Chernyshev, 1948
dbp:caption
Location of Karaganda in Kazakhstan, where the only known specimen of Unionopterus has been found
dbp:displayParents
2
dbp:fossilRange
Tournaisian-Viséan,
dbp:image
Unionopterus anastasiae carapace restoration.png
dbp:imageCaption
Type and only known specimen of U. anastasiae
dbp:imageUpright
0.75
dbp:label
Karaganda
dbp:relief
yes
dbp:taxon
Unionopterus
dbp:typeSpecies
†Unionopterus anastasiae
dbp:typeSpeciesAuthority
Chernyshev, 1948
georss:point
49.833333333333336 73.16666666666667
dbo:abstract
Unionopterus is a genus of eurypterid, an extinct group of aquatic arthropods commonly known as "sea scorpions". Fossils have been registered from the Early Carboniferous period. The genus contains only one species, U. anastasiae, recovered from deposits of Tournaisian to Viséan stages in Kazakhstan. Known from one single specimen (now presumed to be lost) which was described in a publication of Russian language with poor illustrations, Unionopterus' affinities are extremely poorly known. Unionopterus was described in 1948 after the discovery of its only known specimen in the of Kazakhstan (at that time part of the Soviet Union). This was one of the first discoveries of eurypterids in the Soviet Union and Carboniferous eurypterids in general. It was probably a swimming organism as well as other eurypterids, although not as good as its relatives. There are numerous factors that have made Unionopterus a problematic genus for eurypterid researchers. It has been placed in the family Adelophthalmidae and it has even been speculated that a species of Adelophthalmus, A. dumonti, actually belongs to Unionopterus, but this cannot be confirmed. Many authors have chosen to completely ignore the genus during phylogenetic studies, making Unionopterus an enigmatic eurypterid.
dbp:image2Caption
Restoration of the carapace and first body segment of U. anastasiae
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wikipedia-en:Unionopterus?oldid=1070978402&ns=0
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15085
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POINT(73.166664123535 49.833332061768)