georefid:2005-019857SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2005-019857<gco:CharacterString>Taxonomy of the diatom resting spore form genus Liradiscus Greville and its stratigraphic significance</gco:CharacterString>2004-01-01publicationgeorefid:2005-019857Suto, ItsukiUniversity of Tsukuba, Doctoral Program of Geoscience, Tsukuba, JapanauthorAmerican Museum of Natural History, New York, NY, United StatespublisherdocumentHardcopyMicropaleontology50 (1)59-79The taxonomy of the marine diatom spore genus Liradiscus Greville is established based on detailed light and electron microscopic observations, along with the stratigraphic examination of DSDP Holes 438A, 438B and 436 (northwestern Pacific) and the Newport Beach Section (California). The genus Liradiscus is characterized by circular or elliptical valves covered with circular, branched or net-like veins. Eleven fossil Liradiscus species including five new species (L. akibae, L. japonicus, L. petasus, L. pacificus and L. reticulatus) are described, and their stratigraphic ranges are presented. Liradiscus akibae, L. reticulatus and L. petasus can potentially serve as additional useful biostratigraphic markers to improve the Miocene diatom biostratigraphy of the North Pacific. Furthermore, taxonomy of fossil resting spores will allow us to detect additional paleoceanographic signals recorded in fossil resting spore assemblages in upwelling regions.completedStratigraphyalgaebiostratigraphyCaliforniaCenozoicDeep Sea Drilling ProjectdiatomsDSDP Site 436DSDP Site 438identificationIPODJapan TrenchLeg 56Leg 57Liradiscusmarine environmentmicrofossilsMiocenemorphologyNeogenenew taxaNewport Beach CaliforniaNorth PacificNorthwest PacificOrange County CaliforniaPacific Oceanpaleo-oceanographypaleoenvironmentPlantaequantitative analysisSEM datataxonomyTertiaryUnited StatesWest Pacificurn:org.iodp:exp:56urnlargerWorkCitationcampaignurn:org.iodp:exp:57urnlargerWorkCitationcampaignurn:org.iodp:exp:56:site:436urnlargerWorkCitationstudyurn:org.iodp:exp:56urnlargerWorkCitationcampaignurn:org.iodp:exp:57:site:438urnlargerWorkCitationstudyurn:org.iodp:exp:57urnlargerWorkCitationcampaignEnglishgeoscientificInformation-118.0800145.340033.250040.3748Orange County California