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Anaspida
(redirected from Anaspids)

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Noun1.Anaspida - extinct order of jawless vertebrates
order Anaspida
animal order - the order of animals
Agnatha, superclass Agnatha - superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms
anaspid - extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian
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Paralogania martinssoni (Gross), Phlebolepis elegans Pander, osteostracans Tremataspis mammillata Patten, Dartmuthia gemmifera Patten, Oeselaspis pustulata Patten, Procephalaspis oeselensis (Robertson), and anaspids Schidiosteus mustelensis Pander and Pharyngolepis?
Sedimentation of the Himmiste-Kuigu fish bed (Ludlow of Estonia) and ... by Marss, Tiiu; Perens, Helle; Klaos, Tiiu / Proceedings of the Estonian Academy of Sciences: Geology
Silurian and earliest Devonian birkeniid anaspids from the northern hemisphere.
New thelodont (Agnatha) and possible chondrichthyan (Gnathostomata) ... by Marss, Tiiu; Wilson, Mark V.H.; Thorsteinsson, Raymond / Proceedings of the Estonian Academy of Sciences: Geology
They come from grey and greenish-grey limestones with thin interlayers of clay containing also ostracodes, bivalves, and scales of thelodonts, fragments of osteostracans and anaspids.
Andreolepis (Actinopterygii) in the upper Silurian of Northern ... by Marss, Tiiu / Proceedings of the Estonian Academy of Sciences: Geology
 
 
 
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