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Extinct suborder of jawless fishes
Psammosteida also called as Psammosteoidei is a suborder of pteraspidid heterostracan agnathans. The psammosteids had broad, flattened bodies, suggesting
Psammosteida
Extinct genus of jawless fishes
Oniscolepis Tessellate heterostracans Kallostrakon Lepidaspis Tesseraspis Cardipeltis Corvaspis Traquairaspidida Pteraspidiformes (including Psammosteida)
Sacabambaspis
Species of prehistoric jawless fish
Devonian of modern-day Europe. "Palaeos Vertebrates Pteraspidomorphi: Psammosteida (2)". palaeos.com. Retrieved 2024-09-03. Glinskiy, Vadim (2017). "Phylogenetic
Yoglinia
Extinct subclass of jawless fishes
Psammosteidae is now regarded as a separate subtaxon within Pteraspidiformes, "Psammosteida," as the sister taxon of the most basal family, Anchipteraspidae. Pteraspididae
Heterostraci
Extinct genus of jawless fishes
belongs to the clade Drepanaspididae, a subdivision of the family Psammosteida. Psammosteida belongs to the order Pteraspidiformes and class Pteraspidomorphi
Drepanaspis
Extinct order of jawless fishes
treated as a suborder, "Psammosteoidei", or as an order-level taxon as "Psammosteida", or as a family, "Psammosteidae". Anatomically, a typical psammosteid
Pteraspidiformes
Extinct class of jawless fishes
Oniscolepis Tessellate heterostracans Kallostrakon Lepidaspis Tesseraspis Cardipeltis Corvaspis Traquairaspidida Pteraspidiformes (including Psammosteida)
Pteraspidomorpha
Extinct genus of jawless fishes
Oniscolepis Tessellate heterostracans Kallostrakon Lepidaspis Tesseraspis Cardipeltis Corvaspis Traquairaspidida Pteraspidiformes (including Psammosteida)
Cardipeltis
Extinct genus of jawless fishes
eating small invertebrates which it knocked loose. "Pteraspidomorphi: Psammosteida (2): Guerichosteids, Pycnosteids, Psammosteids & Psammolepis". Palaeos
Pycnosteus
Extinct superfamily of jawless fishes
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Hibernaspidoidei
Extinct genus of jawless fishes
†Pteraspidomorpha Subclass: †Heterostraci Order: †Pteraspidiformes Suborder: †Psammosteida Genus: †Tartuosteus Obruchev, 1961 Type species Psammolepis gigantea
Tartuosteus
Extinct family of jawless fishes
thought to represent a transitional form between the Pteraspididae and the Psammosteida, bearing the broad head shield shape of the latter, due to a more benthic
Protaspididae
Extinct genus of Pteraspidomorph fish
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Arandaspis
Extinct subclass of jawless fishes
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Arandaspida
Extinct order of jawless fishes
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Traquairaspidiformes
Extinct genus of jawless fishes
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Astraspis
Extinct genus of jawless fishes
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Pteraspis
Extinct genus of jawless fishes
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Protaspis
Extinct genus of jawless fishes
to psammosteids, some authorities, such as Tarlo, place them within Psammosteida. Because the ornamentation on the plates and scales are very similar
Weigeltaspis
Extinct genus of jawless fish
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Doryaspis
Extinct family of jawless fishes
†Pteraspidomorpha Subclass: †Heterostraci Order: †Pteraspidiformes Suborder: †Psammosteida Family: †Psammosteidae Genera Drepanaspis Psammosteus Pycnosteus Schizosteus
Psammosteidae
Mark-Kurik, Elga; Daeschler, Edward B. (2004). "A revision of Obruchevia (Psammosteida: Heterostraci) and a description of a new obrucheviid from the Late Devonian
2004_in_paleontology
Extinct genus of Pteraspidomorph fish
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Apedolepis
nov Valid Glinskiy in Glinskiy & Nilov Devonian (Frasnian) Andoma Formation Latvia Russia ( Leningrad Oblast Vologda Oblast) A member of Psammosteida.
2017_in_paleoichthyology
Extinct family of jawless fishes
Doryaspis Escharaspis Miltaspis Stegobranchiaspis Unkaraspis "Trygonaspis" Psammosteida Tartuosteus Weigeltaspis？ Drepanaspididae Drepanaspis Guerichosteidae
Protopteraspididae
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