单词	anagenesis
释义	anagenesis noun ana·​gen·​e·​sis ˌa-nə-ˈje-nə-səs  : evolutionary change producing a single lineage in which one taxon replaces another without branching compare cladogenesis Example Sentences Recent Examples on the Web Evolution can take place by anagenesis, in which changes occur within a lineage. Julia Musto, Fox News, 5 Mar. 2022 And that overlap would imply that A. anamensis could not have evolved into A. afarensis by means of anagenesis. Kate Wong, Scientific American, 7 Dec. 2019 Based on the ages and characteristics of the available fossils, paleoanthropologists thought A. anamensis gave rise to A. afarensis through an evolutionary process termed anagenesis, in which one species transforms into another. Kate Wong, Scientific American, 7 Dec. 2019 But the case for cladogenesis over anagenesis hinges entirely on that 3.9-million-year-old forehead bone from Belohdelie belonging to A. afarensis—no other A. afarensis remains recovered thus far are that old. Kate Wong, Scientific American, 7 Dec. 2019 This challenges the long and widely-held view that Lucy’s species evolved gradually from A. anamensis without branching of the evolutionary line – a process known as anagenesis. Hester Hanegraef, Quartz Africa, 7 Sep. 2019 A new tyrannosaur with evidence with evidence for anagenesis and crocodile-like facial sensory system. Darren Naish, Scientific American Blog Network, 16 June 2017 According to Horner’s paper, this linear sort of evolution—called anagenesis—possibly could have resulted in the iconic Tyrannosaurus rex. Michael Greshko, National Geographic, 30 Mar. 2017 See More Word History Etymology New Latin First Known Use circa 1882, in the meaning defined above
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