palaeoniscids A group of primitive fish (Actinopterygii), most of which were of modest size (about the size of a herring), but possessed thick, rhomboidal, enamel scales. There is great variety in structural detail and they were most abundant in the Carboniferous. The group diminished rapidly after the early Triassic and finally became extinct in the Cretaceous.
More From encyclopedia.com
368. Size , 368. Size See also 187. GRANDEUR . acromegaly Medicine. a disease resulting from abnormal activity of the pituitary gland in which bones of the extre… grid analysis of pattern , grid analysis of pattern The detection of pattern using a contiguous grid of quadrats, rather than random sampling with a given quadrat size. By bloc… Autotetraploid , autotetraploid An autopolyploid organism with four similar genomes. They occur either naturally by the spontaneous accidental doubling of a 2n genome… Teleosts , Teleostei (teleost, teleostean) Somewhat loosely defined term (an infraclass or super-order according to some authors) that includes all the living b… Rhipidistia , Rhipidistia (class Osteichthyes, subclass Crossopterygii) A group of ‘tasselfinned’ fish that lived from the Devonian to the Permian Periods. They po… blenny , blenny •Annie, ca'canny, canny, cranny, Danny, fanny, granny, nanny, tranny •Ariadne, Evadne •daphne •Agni, Cagney •acne, Arachne, hackney •hootenann…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like