Definition of Galeaspida. Meaning of Galeaspida. Synonyms of Galeaspida
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Definition of Galeaspida
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- Galeaspida (from Latin, 'Helmet shields') is an extincttaxon of jawlessmarine and freshwater fish. The name is derived from galea, the Latin word for... - †Galeaspida... - include only groups more clearlyrelated to the Osteostraci, such as Galeaspida and Pituriaspida, that were largelyunknown in the 1920s. Some reference... - †Protoconodonta? †Paraconodontida †Conodonta †Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci... - (conodonts) † classCephalaspidomorphi † (early jawless fish) (unranked) Galeaspida † (unranked) Pituriaspida † (unranked) Osteostraci † Infraphylum Gnathostomata... - all ostracoderms and the gnathostomes. Other ostracoderms, such as the Galeaspida are now known to have a pairedolfactory organ. Currentphylogenetic analysis... - Galeaspida † "Cephalaspidomorphi" (paraphyletic)... - braincase with those of jawless fish, such as the Osteostraci and the Galeaspida, stronglysuggest that B. stensioi, and also the antiarchs, are basal... - †Protoconodonta? †Paraconodontida †Conodonta †Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci... - included †Anaspidomorphi †Conodonta Cyclostomi (hagfish and lampreys) †Galeaspida †Myllokunmingiida? †Metaspriggina? †Osteostraci †Palaeospondylus? †Pituriaspida...