Discovery of Bilaterian-Type Through-Guts in Cloudinomorphs from the Terminal Ediacaran Period

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https://doi.org/10.1038/s41467-019-13882-z

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  • (OWENIIDAE, ANNELIDA POLYCHAETA) from the YELLOW SEA and EVIDENCE THAT OWENIA FUSIFORMIS IS NOT a COSMOPOLITAN SPECIES B Koh, M Bhaud

    (OWENIIDAE, ANNELIDA POLYCHAETA) from the YELLOW SEA and EVIDENCE THAT OWENIA FUSIFORMIS IS NOT a COSMOPOLITAN SPECIES B Koh, M Bhaud

    DESCRIPTION OF OWENIA GOMSONI N. SP. (OWENIIDAE, ANNELIDA POLYCHAETA) FROM THE YELLOW SEA AND EVIDENCE THAT OWENIA FUSIFORMIS IS NOT A COSMOPOLITAN SPECIES B Koh, M Bhaud To cite this version: B Koh, M Bhaud. DESCRIPTION OF OWENIA GOMSONI N. SP. (OWENIIDAE, ANNELIDA POLYCHAETA) FROM THE YELLOW SEA AND EVIDENCE THAT OWENIA FUSIFORMIS IS NOT A COSMOPOLITAN SPECIES. Vie et Milieu / Life & Environment, Observatoire Océanologique - Laboratoire Arago, 2001, pp.77-86. hal-03192101 HAL Id: hal-03192101 https://hal.sorbonne-universite.fr/hal-03192101 Submitted on 7 Apr 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. VIE ET MILIEU, 2001, 51 (1-2) : 77-86 DESCRIPTION OF OWENIA GOMSONI N. SP. (OWENIIDAE, ANNELIDA POLYCHAETA) FROM THE YELLOW SEA AND EVIDENCE THAT OWENIA FUSIFORMIS IS NOT A COSMOPOLITAN SPECIES B.S. KOH, M. BHAUD Observatoire Océanologique de Banyuls, Université P. et M. Curie - CNRS, BP 44, 66650 Banyuls-sur-Mer Cedex, France e-mail: [email protected] POLYCHAETA ABSTRACT. - Two Owenia fusiformis populations from différent geographical lo- OWENIIDAE cations were comparée! to assess whether this species has a truly cosmopolitan dis- NEW SPECIES tribution.
  • RELATING EDIACARAN FRONDS 1 T. Alexander Dececchi *, Guy M

    RELATING EDIACARAN FRONDS 1 T. Alexander Dececchi *, Guy M

    1 RELATING EDIACARAN FRONDS 2 T. Alexander Dececchi *, Guy M. Narbonne, Carolyn Greentree, and Marc 3 Laflamme 4 T. Alexander Dececchi* and Guy M. Narbonne, Department of Geological Sciences 5 and Geological Engineering, Kingston, Queen's University, Ontario, K7L 3N6, Canada. 6 E-mail: [email protected], [email protected]. 7 Carolyn Greentree, School of Earth, Atmosphere and Environment, Monash 8 University, Clayton, Victoria, 3800, Australia. Email [email protected]. 9 Marc Laflamme. Department of Chemical and Physical Sciences, University of 10 Toronto, Mississauga, 3359 Mississauga Road, Mississauga, Ontario, L5L 1C6, 11 Canada. E-mail: [email protected]. 12 13 Abstract 14 Ediacaran fronds are key components of terminal-Proterozoic ecosystems. They 15 represent one of the most widespread and common body forms ranging across all 16 major Ediacaran fossil localities and time slices postdating the Gaskiers glaciation, 17 but uncertainty over their phylogenetic affinities has led to uncertainty over issues 18 of homology and functional morphology between, and within, organisms displaying 19 this ecomorphology. Here we present the first large scale, multi-group cladistic 20 analysis of Ediacaran organisms, sampling 20 ingroup taxa with previously asserted 21 affinities to the Arboreomorpha, Erniettomorpha and Rangeomorpha. Using a newly 22 derived morphological character matrix that incorporates multiple axes of potential 23 phylogenetically informative data, including architectural, developmental, and 24 structural qualities, we seek to illuminate the evolutionary history of these 25 organisms. We find strong support for existing classification schema and devise 26 apomorphy-based definitions for each of the three frondose clades examined here. 27 Through a rigorous cladistics framework it is possible to discern the pattern of 28 evolution within, and between, these clades, including the identification of 29 homoplasies and functional constraints.
  • Final Data Report.Aj.SLB Guts JD

    Final Data Report.Aj.SLB Guts JD

    Gut Contents Analysis of Four Fish Species Collected in San Leandro Bay in August 2016 Prepared by: Andrew Jahn Independent Contractor CONTRIBUTION #900 / November 2018 ` Gut Contents Analysis of Four Fish Species Collected in San Leandro Bay in August 2016 Final Report 7 November 2018 Andrew Jahn, PhD Ukiah, CA [email protected] SFEI Contribution #900 Suggested citation: Jahn. 2018. Gut Contents Analysis of Four Fish Species Collected in San Leandro Bay in August 2016. SFEI Contribution #900. San Francisco Estuary Institute, Richmond, CA. EXECUTIVE SUMMARY In support of PCB modeling for San Leandro Bay, a Priority Margin Unit (PMU) for PCB load reduction in the estuary, fish samples of four species (topsmelt, shiner perch, white croaker, and northern anchovy ) were obtained in August 2016 for both tissue analysis and examination of gut contents. The bay was sampled at eight locations, with a repeated sampling at one location (Airport Lagoon) for one species (topsmelt). Fish were measured, weighed, and dissected, and their gut contents examined microscopically. Topsmelt (9 samples, 188 specimens) had the greatest variety of food items, with gammarid amphipods and chain diatoms predominating. Some topsmelt, especially larger individuals, consumed macroalgae as a major dietary component. Two samples at two sites for shiner perch (20 fish each) had contents composed of close to 50% gammarids at both sites, but differed in proportions of bivalves and polychaetes among the important food items. The one sample of white croaker had consumed mostly gammarids, with fish and polychaetes ranking next in importance. A single sample of northern anchovy (20 fish analyzed) differed radically from the other species in consuming mainly a diatom that appears to have been filtered from the water column.
  • Oxygen, Ecology, and the Cambrian Radiation of Animals

    Oxygen, Ecology, and the Cambrian Radiation of Animals

    Oxygen, Ecology, and the Cambrian Radiation of Animals The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citation Sperling, Erik A., Christina A. Frieder, Akkur V. Raman, Peter R. Girguis, Lisa A. Levin, and Andrew H. Knoll. 2013. Oxygen, Ecology, and the Cambrian Radiation of Animals. Proceedings of the National Academy of Sciences 110, no. 33: 13446–13451. Published Version doi:10.1073/pnas.1312778110 Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:12336338 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Other Posted Material, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of- use#LAA Oxygen, ecology, and the Cambrian radiation of animals Erik A. Sperlinga,1, Christina A. Friederb, Akkur V. Ramanc, Peter R. Girguisd, Lisa A. Levinb, a,d, 2 Andrew H. Knoll Affiliations: a Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, 02138 b Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, 92093- 0218 c Marine Biological Laboratory, Department of Zoology, Andhra University, Waltair, Visakhapatnam – 530003 d Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, 02138 1 Correspondence to: [email protected] 2 Correspondence to: [email protected] PHYSICAL SCIENCES: Earth, Atmospheric and Planetary Sciences BIOLOGICAL SCIENCES: Evolution Abstract: 154 words Main Text: 2,746 words Number of Figures: 2 Number of Tables: 1 Running Title: Oxygen, ecology, and the Cambrian radiation Keywords: oxygen, ecology, predation, Cambrian radiation The Proterozoic-Cambrian transition records the appearance of essentially all animal body plans (phyla), yet to date no single hypothesis adequately explains both the timing of the event and the evident increase in diversity and disparity.
  • Curriculum Vitae Page 1 of 7 Selly

    Curriculum Vitae Page 1 of 7 Selly

    Curriculum Vitae Page 1 of 7 Dr. Tara Selly X-ray Microanalysis Core Assistant Director / Assistant Research Professor Department of Geological Sciences University of Missouri [email protected] EDUCATION: 2018 Ph.D. in Geologic Sciences with a minor in College Teaching, Department of Geological Sciences, University of Missouri, College of Arts and Sciences 2015 M.S. in Geologic Sciences, Department of Geological Sciences, University of Missouri, College of Arts and Sciences 2013 B.A. in Geology and Biology, Geology Department, Gustavus Adolphus College EMPLOYMENT HISTORY: 2019–Current Assistant Director, X-ray Microanalysis Core Facility; Department of Geological Sciences, University of Missouri 2019–Current Assistant Research Professor, Department of Geological Sciences, University of Missouri 2018–2019 Postdoctoral Researcher, Lab Manager of the X-ray Microanalysis Core Facility; Department of Geological Sciences, University of Missouri RESEARCH INTERESTS: • Implementing advanced microscopy techniques for data analysis • Taphonomy, actualistic studies, and experimental laboratory decay to analyze fossil preservation • Ediacaran and Cambrian taxonomy PUBLICATIONS, ABSTRACTS, AND PRESENTATIONS PUBLISHED ARTICLES: 9. Yang, B., Steiner, M., Schiffbauer, J.D., Selly, T., Wu, X., and Liu, P. [2020] Ultrastructure of Ediacaran cloudinids suggests diverse taphonomic histories and affinities with non- biomineralized annelids. Scientific Reports, 10: 1–12. doi: 10.1038/s41598-019-56317-x 8. Schiffbauer, J.D., Selly, T., Jacquet, S.M., Nelson, L.L., Strange, M.A., Cai, Y., and Smith, E.F. (2020). Discovery of bilaterian-type through-guts in cloudinomorphs from the terminal Ediacaran Period. Nature Communications, 11: 1–12. doi: 10.1038/s41467-019-13882-z 7. Lekakh, S., Zhang, X., Tucker, W., Lee, H., Selly, T., and Schiffbauer, J.D.
  • An Annotated Checklist of the Marine Macroinvertebrates of Alaska David T

    An Annotated Checklist of the Marine Macroinvertebrates of Alaska David T

    NOAA Professional Paper NMFS 19 An annotated checklist of the marine macroinvertebrates of Alaska David T. Drumm • Katherine P. Maslenikov Robert Van Syoc • James W. Orr • Robert R. Lauth Duane E. Stevenson • Theodore W. Pietsch November 2016 U.S. Department of Commerce NOAA Professional Penny Pritzker Secretary of Commerce National Oceanic Papers NMFS and Atmospheric Administration Kathryn D. Sullivan Scientific Editor* Administrator Richard Langton National Marine National Marine Fisheries Service Fisheries Service Northeast Fisheries Science Center Maine Field Station Eileen Sobeck 17 Godfrey Drive, Suite 1 Assistant Administrator Orono, Maine 04473 for Fisheries Associate Editor Kathryn Dennis National Marine Fisheries Service Office of Science and Technology Economics and Social Analysis Division 1845 Wasp Blvd., Bldg. 178 Honolulu, Hawaii 96818 Managing Editor Shelley Arenas National Marine Fisheries Service Scientific Publications Office 7600 Sand Point Way NE Seattle, Washington 98115 Editorial Committee Ann C. Matarese National Marine Fisheries Service James W. Orr National Marine Fisheries Service The NOAA Professional Paper NMFS (ISSN 1931-4590) series is pub- lished by the Scientific Publications Of- *Bruce Mundy (PIFSC) was Scientific Editor during the fice, National Marine Fisheries Service, scientific editing and preparation of this report. NOAA, 7600 Sand Point Way NE, Seattle, WA 98115. The Secretary of Commerce has The NOAA Professional Paper NMFS series carries peer-reviewed, lengthy original determined that the publication of research reports, taxonomic keys, species synopses, flora and fauna studies, and data- this series is necessary in the transac- intensive reports on investigations in fishery science, engineering, and economics. tion of the public business required by law of this Department.