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Foraminiferal diversification during the late Paleozoic ice age
Groves, John R.1; Yue, Wang (王玥)2
2009-06-01
Source PublicationPALEOBIOLOGY
ISSN0094-8373
Volume35Issue:3Pages:367-392
Abstract

A record of late Paleozoic foraminiferal diversity, origination and extinction frequencies, and provincialism at million-year temporal resolution and species-level taxonomic resolution has been achieved by analyzing composite standard databases. Foraminiferal species diversity increased throughout Mississippian and Pennsylvanian time leading up to its peak at the Pennsylvanian/Permian boundary. Foraminifers then experienced a steep decline in diversity during the Early Permian. Frequencies of origination and extinction broadly tracked changes in global diversity. From Late Mississippian time onward, patterns in total foraminiferal diversity were dominated by fusulinoideans. There is no clear relationship between rates of foraminiferal evolution and the alternating glacial and nonglacial intervals that characterized the late Paleozoic ice age. Rather, high rates of origination and extinction might reflect instability of neritic environments as a consequence of high-frequency, high-amplitude base-level fluctuations (cyclothemic deposition). Further, the advent of algal symbiosis in fusulinoideans was a physiologic innovation that promoted diversification as these symbiont-bearing taxa experimented with morphologic adaptations for partitioning the low-nutrient environments to which they were specialized. Growth to large size and delayed maturation in fusulinoideans might have been enabled by the late Paleozoic hyperoxic atmosphere and the widespread development of oligotrophic, carbonate platform and shelf environments. The late Paleozoic history of foraminiferal diversification was influenced also by closure of the Rheic Ocean beginning in Late Mississippian time. Foraminiferal associations on opposite sides of Pangea exhibited relatively high similarity prior to the closure, but then similarity decreased steadily after destruction of the Subequatorial marine corridor. Arctic-Eurasian and North American associations were nearly isolated from one another throughout the main burst of fusulinoidean diversification, so that parallel lineages developed independently in the two regions, resulting in many instances of convergence.

Language英语
WOS KeywordNorth-america ; Larger Foraminifera ; Fusulinacean Biostratigraphy ; Smaller Foraminifers ; Co2-forced Climate ; Appalachian Basin ; Algal Symbiosis ; United-states ; South China ; Evolution
Funding ProjectPetroleum Research Fund of the American Chemical Society[44548-B8] ; Graduate College of the University of Northern Iowa ; National Science Foundation of China
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology ; Evolutionary Biology ; Paleontology
WOS SubjectBiodiversity Conservation ; Ecology ; Evolutionary Biology ; Paleontology
WOS IDWOS:000268080200004
Funding OrganizationPetroleum Research Fund of the American Chemical Society ; Graduate College of the University of Northern Iowa ; National Science Foundation of China
PublisherPALEONTOLOGICAL SOC INC
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Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/270
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorGroves, John R.
Affiliation1.Univ No Iowa, Dept Earth Sci, Cedar Falls, IA 50614 USA
2.Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Groves, John R.,Yue, Wang . Foraminiferal diversification during the late Paleozoic ice age[J]. PALEOBIOLOGY,2009,35(3):367-392.
APA Groves, John R.,&Yue, Wang .(2009).Foraminiferal diversification during the late Paleozoic ice age.PALEOBIOLOGY,35(3),367-392.
MLA Groves, John R.,et al."Foraminiferal diversification during the late Paleozoic ice age".PALEOBIOLOGY 35.3(2009):367-392.
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