Search results
Results from the WOW.Com Content Network
The images of the living OTUs (29 species) were made available in the early 1960s; those of the fossil ones (48 species) later in the decade. These images were copied using xerography . Copies of all OTUs were in the possession of Dr. Paul A. Ehrlich ( Stanford University ), Dr. W. Wayne Moss (Philadelphia Academy of Sciences) and Robert R ...
Acinonyx is a genus within the Felidae family. [1] The only living species of the genus, the cheetah (A. jubatus), lives in open grasslands of Africa and Asia. [2]Several fossil remains of cheetah-like cats were excavated that date to the late Pliocene and Middle Pleistocene. [3]
[3] [4] In the three-domain model, the first two are prokaryotes, single-celled microorganisms without a membrane-bound nucleus. All organisms that have a cell nucleus and other membrane-bound organelles are included in Eukarya and called eukaryotes. Non-cellular life, most notably the viruses, is not included in this system.
Molluscs are second only to arthropods in numbers of living animal species [20] — far behind the arthropods' 1,113,000 but well ahead of chordates' 52,000. [18]: Front endpaper About 200,000 living species in total are estimated, [ 3 ] [ 24 ] and 70,000 fossil species, [ 17 ] although the total number of mollusc species ever to have existed ...
"The science of classification as applied to living organisms, including the study of means of formation of species, etc." [5] "The analysis of an organism's characteristics for the purpose of classification" [6] "Systematics studies phylogeny to provide a pattern that can be translated into the classification and names of the more inclusive ...
Viverridae is a family of small to medium-sized, feliform mammals.The viverrids (/ v aɪ ˈ v ɛ r ɪ d z /) comprise 33 species placed in 14 genera.This family was named and first described by John Edward Gray in 1821. [3]
The nomenclature and classification of plants with microphylls varies substantially among authors. A consensus classification for extant (living) species was produced in 2016 by the Pteridophyte Phylogeny Group (PPG I), which places them all in the class Lycopodiopsida, which includes the classes Isoetopsida and Selaginellopsida used in other ...
Gaviiformes (/ ˈ ɡ æ v i. ɪ f ɔːr m iː z /) is an order of aquatic birds containing the loons or divers and their closest extinct relatives. Modern gaviiformes are found in many parts of North America and northern Eurasia (Europe, Asia and debatably Africa), though prehistoric species were more widespread.