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Author Santiago-Blay, Jorge A.
Source CiteSeerX
Content type Text
Publisher Kluwer Academic Publishers
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Large Group ♦ Leaf Beetle ♦ Reliable Biological Information ♦ Paleoclimatological Indicator ♦ Cenozoic Record ♦ Modern Host-plant Association ♦ Mesozoic Proto Scelinae ♦ Early Cenozoic ♦ Chrysomelid Fossil Record ♦ Beloved Wife ♦ Mesozoic Record ♦ Early Mesozoic Triassic ♦ Extant Subfamily ♦ Wonderful Person ♦ Fossil Chrysomelid ♦ Faunal Element ♦ Yenli Ych ♦ Rapid Change ♦ Relatise Stability ♦ General Rule ♦ Fossil Record ♦ Late Paleozoic ♦ Late Mesozoic ♦ Total Extant ♦ T3 Genus ♦ Quaternary Record
Description `The rate of evolution in any large group is not uniform; there are periods of relatise stability, and periods of comparatively rapid change.' Cockerell and LeVeque, 1931 To Yenli Ych, my beloved wife, a most wonderful person! The fossil record of the Chrysomelidae can be tentatively traced back to the late Paleozoic to early Mesozoic Triassic. Mesozoic records at least 9 subfamilies, 19 genera, and 35 species, are represented by the Sagrinae, the exclusively Mesozoic Proto scelinae, Clytrinae, Cryptocephalinae, Eumolpinae, Chrysomelinae. Galerucinac, Alticinae, and Cassidinae. Cenozoic records at least 12 subfamilies- 63 % of the extant- 12! genera, and 325 species, include the same extant subfamilies as well as the Donaciinae, Zeugophorinae, Criocerinae, and Hispinae and can be frequently identified to genus, especially if preserved in amber. Quaternary records are often identified to extant species. tn total, at least t3! genera about 4 % of total extant, and 357 species < 1 % have been reported. At least, 24 genera <1 % of the extant seem to be extinct. Although reliable biological information associated with the fossil chrysomelids is very scarce, it seems that most of the modern host-plant associations were established, at least, in the late Mesozoic to early Cenozoic. As a whole, stasis seems to be the general rule of the chrysomelid fossil record. Together with other faunal elements, chrysomelids, especially donaciines, have been used as biogeographic and paleoclimatological indicators in the Holocene. I.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Date 1994-01-01
Publisher Institution In: Jolivet P.H. & Pipitpiere (eds.): Novel aspects of the biology of Chrysomelidae