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Crustacean biodiversity through the marine fossil record Naturalis
Sepkoski Jr., J. John.
Approximately 2,600 genera of marine crustaceans have been recognized in the fossil record, and crustaceans constitute the major component of marine arthropod diversity from the mid-Paleozoic to the Recent. Despite problems of sporadic fossil preservation and/or taxonomic ambiguity, some general statements can be made about the history of crustacean biodiversity, based on global taxonomic data bases. Ostracodes were the first major group to radiate, attaining high diversity during the Ordovician Period with other members of the Paleozoic evolutionary fauna; rates of extinction and responses to mass extinctions were also similar to those of groups within the Paleozoic fauna. Malacostracans and barnacles (cirripedes), the two other crustacean groups with...
Tipo: Article / Letter to the editor Palavras-chave: Crustacean biodiversity; Marine fossil record; Extinction rates; Ostracoda; Malacostraca; Cirripedia.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/534399
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ADVANCES ON DIPTEROLOGY IN THE 21 ST CENTURY AND EXTINCTION RATES Pap. Avulsos de Zool. (São Paulo)
SANTOS,DAUBIAN; SAMPRONHA,STEPHANIE; SANTOS,CHARLES MORPHY DIAS.
ABSTRACT At least one million extant insect species have been described on Earth, of which 150,000 belong to the megadiverse order Diptera. We here synthesize data from the last 15 years of taxonomic work in Diptera, mapping the world taxonomic productivity in the order. Our data shows an increasing importance of China and Brazil in taxonomic production, along with other traditional centres such as the USA and Europe. We correlate our database with estimates of extinction rates to determine the amount of basic taxonomic research still necessary to have the description of the fly diversity before extinction. Due to the growing recent extinction rates, it is unlikely that we will be able to entirely describe unknown fly diversity before their demise. Even...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; Diptera; Entomology; Extinction rates; Systematics.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017003300433
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