The genus Bradleya Hornibrook, 1952 (Crustacea: Ostracoda) in South America and adjacent oceanic areas, with description of a new bradleyine genus
dc.contributor.author | Bergue, Cristianini Trescastro | pt_BR |
dc.contributor.author | Coimbra, João Carlos | pt_BR |
dc.date.accessioned | 2024-01-13T03:41:18Z | pt_BR |
dc.date.issued | 2023 | pt_BR |
dc.identifier.issn | 0001-3765 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/270955 | pt_BR |
dc.description.abstract | The ostracod genus Bradleya Hornibrook is an important taxon of Cenozoic assemblages, occurring practically in all oceanic regions. The wide distribution both in shallow and deep waters turns Bradleya interesting for studies involving phylogeny and paleoceanography. The present work aims at the study of fossil and recent species in South America and adjacent regions, based on bibliographic review and the restudy of samples from the Brazilian continental margin, the Navidad Formation(lower Miocene) and El Peral Beds (meso-upper Miocene), both cropping out in the Central Chile. The chronostratigraphic, (paleo)bathymetricand (paleo)zoogeographic distribution of the species is reviewed and updated. The bridge composition was studied in all species recorded and revealed to be important taxonomic character. The taxa identified were gathered into three morphological groups: two proposed previously (i.e., the dictyon-group and the arata-group) and a new one in the present work (i.e., the normani-group). The dictyon-group and the arata-group gather deep-sea species, while the normani-group is predominantly neritic, including most of the species of Brazilian margin. Bradleya victorjarai sp. nov. is proposed for the Miocene of Chile, and Bradleya ybate (Bergue et al.) is reassigned to Rigracythere gen. nov. Questionable or misidentified species ascribed to Bradleya are briefly discussed. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Anais da Academia Brasileira de Ciências. Rio de Janeiro. Vol. 95, supl. 2 (2023), e20220369, 22 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Deep-sea | en |
dc.subject | Águas profundas | pt_BR |
dc.subject | Marine paleobiodiversity | en |
dc.subject | Biodiversidade marinha | pt_BR |
dc.subject | Neogene | en |
dc.subject | Ostracoda | pt_BR |
dc.subject | Paleontologia : Neogeno | pt_BR |
dc.subject | Southwestern Atlantic | en |
dc.subject | Southeastern Pacific | en |
dc.subject | Estratigrafia : Paleoecologia | pt_BR |
dc.subject | Ostracodes : Distribuição geográfica | pt_BR |
dc.subject | Taxonomy | en |
dc.title | The genus Bradleya Hornibrook, 1952 (Crustacea: Ostracoda) in South America and adjacent oceanic areas, with description of a new bradleyine genus | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001193809 | pt_BR |
dc.type.origin | Nacional | pt_BR |
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