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Belinuropsis
''Belinuropsis'' is a dubious genus of prehistoric arthropod which contains one species, ''B. wigudensis'', from the Silurian period of New Brunswick, Canada. Matthew tried to describe ''Belinuropsis'' originally as a species of ''Belinurus''. Two specimens that match the Matthew's illustration of ''B. wigudensis'' have been located in the New Brunswick Museum paleontology collection and assigned catalogue numbers NBMG 3307 and NBMG 3308 (Miller, 1988). Examination of the specimens casts doubt on validity of the genus erected by Matthew. The material is poorly preserved and difficult to interpret, so, after examinations of the specimens, ''Belinuropsis'' has been considered as ''nomen dubium In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium'' it may be impossible to determine whether a s ...''. References Carboniferous arth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
