Placodermi
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Placodermi [‚pla·kə′dər·mē]

(paleontology)

A large and varied class of Paleozoic fishes characterized by a complex bony armor covering the head and the front portion of the trunk.

Placodermi

a class of extinct fishes that lived during the Devonian. Their length was up to 5–6 m. The head and anterior part of the trunk were covered with an armor of bony plates of cutaneous origin. The plates were nodular and ridged. The head and trunk sections of the armor were articulated, and the jaws consisted of pointed bony plates. There were two subclasses: Arthrodira and Antiarchi (which included the genus Bothriole-pis).

REFERENCE

Drushits, V. V., and O. P. Obrucheva. Paleontologiia, 2nd ed. [Moscow] 1971.

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No references found			In May 2008, Dr John Long and colleagues announced in Nature they had discovered a 380 million-year-old fossil of a pregnant female placoderm (Materpiscis attenboroughi), complete with an umbilical cord and embryo. Sex is 380 million years old by Asian News International 5-2 mm) detrital material, heterostracan, placoderm, and sarcopterygian plate fragments are fairly worn. Karksilepis parva gen. et sp. nov. (Chondrichthyes) from the ... by Marss, Tiiu; Kleesment, Anne; Niit, Moonika / Estonian Journal of Earth Sciences			placenta previa Placenta, Artificial placental barrier Placentation Placentia Placentia Bay Placer placer claim Placer County placer deposit placer dredge placer location placer mining Placerita Canyon State Park placeshifting Placetas placic horizon Placid Lake State Park Placid, Lake Placidia Placido Plácido placing placita Placode placoderm Placodermi Placodontia Placoid Scale Placothuriidae Placzek, Adolph K. Plafond Plagal Cadence plage Plaggept plagiaplite Plagiarism Plagiaulacida Plagiaulacidae plagiocephaly Plagioclase plagioclase feldspar plagioclimax plagiodont plagiogravitropism plagiohedral plagionite Plagiosauria plagiosere Plagiotropism PLAGO			placing in office Placing Labor in Unique Trade Opportunities placing reflex placing reflex placing reflex placing reflex placing response placing response placing response placing response Placing the Issue Placing the Issue Placing the Issue Placing the Issue Placing the Issue placings placings placings placings Placit placita Placitory Placitum Placitum Plack placket plackets Placobdella placode placode placoderm Placodermal Placodermata Placodermi Placodermi Placoderms Placoderms placodes Placodont Placodontia Placoganoid Placoganoidei placoid placoid Placoid fish Placoid fish Placoid fishes Placoid fishes Placoid scale Placoid scale Placoides Placoides placoidian Placophora Placothuriidae Placque Placque Placque PLACS PLACT Placuna

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Placodermi (redirected from placoderm)

REFERENCE

Placodermi
(redirected from placoderm)