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SHELL MICROSTRUCTURES IN LOPINGIAN BRACHIOPODS: IMPLICATIONS FOR FABRIC EVOLUTION AND CALCIFICATION
Garbelli, Claudio1,2
2017-11
Source PublicationRIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA
ISSN0035-6883
Volume123Issue:3Pages:541-560
Abstract

The study of the shell microstructure of brachiopods is fundamental to understand their evolutionary history and their biomineralization process. Here, species of forty Lopingian brachiopods genera, representative of twenty-seven different families, are investigated using the Scanning Electron Microscope. The investigated specimens come from different paleogeographic localities in the Palaeotethys/Neotethys oceans. The studied brachiopods show a large variability of the shell fabric, which is mainly related to the organization of its structural units: laminae, fibers and columns, possibly crossed by pseudopunctae or punctae. For the Strophomenata, the laminar fabric of Productida is crossed by pseudopunctae with taleolae and the laminae are often organized in packages, with the blades oriented about perpendicular to each other; this feature is less evident in the laminar Orthotetida, which bear pseudopunctae without taleoae. For the Rhynchonellata, fibrous fabrics are either impuctate in the Spiriferida, most Athyridida and Rhynchonellida, or with punctae, as observed in the Orthida, Terebratulida and in the Neoretziidae (Athyridida). The fibers show a range of sizes and shapes also in the same specimens and the transition to the columnar layer is different than in Strophomenata.

KeywordRhynchonelliformea Strophomenata Biomineralization Taxonomy Columnar Layer
Indexed BySCI
Language英语
WOS Research AreaGeology ; Paleontology
WOS SubjectGeology ; Paleontology
WOS IDWOS:000418190000004
PublisherUNIV STUDI MILANO
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/22753
Collection中国科学院南京地质古生物研究所
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China;
2.Univ Milan, Dipartimento Sci Terra A Desio, Via Mangiagalli 34, I-20133 Milan, Italy
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Garbelli, Claudio. SHELL MICROSTRUCTURES IN LOPINGIAN BRACHIOPODS: IMPLICATIONS FOR FABRIC EVOLUTION AND CALCIFICATION[J]. RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA,2017,123(3):541-560.
APA Garbelli, Claudio.(2017).SHELL MICROSTRUCTURES IN LOPINGIAN BRACHIOPODS: IMPLICATIONS FOR FABRIC EVOLUTION AND CALCIFICATION.RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA,123(3),541-560.
MLA Garbelli, Claudio."SHELL MICROSTRUCTURES IN LOPINGIAN BRACHIOPODS: IMPLICATIONS FOR FABRIC EVOLUTION AND CALCIFICATION".RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA 123.3(2017):541-560.
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