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Springtails from the early Cretaceous amber of Spain (Collembola, Entomobryomorpha), with an annotated checklist of fossil Collembola. (American Museum novitates, no. 3862)

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dc.contributor.author Sánchez-García, Alba.
dc.contributor.author Engel, Michael S.
dc.date.accessioned 2016-06-30T22:32:09Z
dc.date.available 2016-06-30T22:32:09Z
dc.date.issued 2016-05-30
dc.identifier.uri http://hdl.handle.net/2246/6665
dc.description 47 pages : illustrations (some color) ; 26 cm. en_US
dc.description.abstract Entomobryomorphan springtails (Hexapoda: Entognatha: Collembola) of the family Isotomidae are the most numerous group of Collembola in Spanish amber, a pattern typical in other studied Cretaceous amber deposits. Here we provide a revision of the Spanish amber springtail fauna, early Cretaceous (late Albian) in age, based on 93 specimens sufficiently well preserved to permit specific identification. Three new species are erected within the Isotomidae: Anurophorinae. These are: Burmisotoma spinulifera, new species, Protoisotoma autrigoniensis, new species, and Proisotoma communis, new species. The two former are respectively placed in the Cretaceous genera Burmisotoma Christiansen and Nascimbene (previously known from Cenomanian Burmese amber) and Protoisotoma Christiansen and Pike (in both Burmese and Canadian ambers), while the last species is indistinguishable from the extant, cosmopolitan genus Proisotoma Börner (also recorded in Burmese amber). Low morphological intraspecific variability is described for P. communis. Taxa are discussed in relation to other fossil entomobryomorphan lineages as well as their modern counterparts. A catalog of the known fossil springtails is appended. Isotomidae are diverse springtails, putatively basal among Entomobryomorpha and extending back into the early Devonian. Indeed, taxa described herein are overall remarkably similar to their extant relatives, emphasizing the antiquity and morphological stasis of the group as a whole. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries American Museum novitates;no.3862.
dc.subject Burmisotoma spinulifera. en_US
dc.subject Protoisotoma autrigoniensis. en_US
dc.subject Proisotoma communis. en_US
dc.subject Isotomidae. en_US
dc.subject Collembola. en_US
dc.subject Insects, Fossil. en_US
dc.subject Amber fossils. en_US
dc.subject Spain. en_US
dc.title Springtails from the early Cretaceous amber of Spain (Collembola, Entomobryomorpha), with an annotated checklist of fossil Collembola. (American Museum novitates, no. 3862) en_US
dc.title.alternative Cretaceous amber springtails. en_US


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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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