Plant Systematics: an Overview
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Burmese Amber Taxa
Burmese (Myanmar) amber taxa, on-line supplement v.2021.1 Andrew J. Ross 21/06/2021 Principal Curator of Palaeobiology Department of Natural Sciences National Museums Scotland Chambers St. Edinburgh EH1 1JF E-mail: [email protected] Dr Andrew Ross | National Museums Scotland (nms.ac.uk) This taxonomic list is a supplement to Ross (2021) and follows the same format. It includes taxa described or recorded from the beginning of January 2021 up to the end of May 2021, plus 3 species that were named in 2020 which were missed. Please note that only higher taxa that include new taxa or changed/corrected records are listed below. The list is until the end of May, however some papers published in June are listed in the ‘in press’ section at the end, but taxa from these are not yet included in the checklist. As per the previous on-line checklists, in the bibliography page numbers have been added (in blue) to those papers that were published on-line previously without page numbers. New additions or changes to the previously published list and supplements are marked in blue, corrections are marked in red. In Ross (2021) new species of spider from Wunderlich & Müller (2020) were listed as being authored by both authors because there was no indication next to the new name to indicate otherwise, however in the introduction it was indicated that the author of the new taxa was Wunderlich only. Where there have been subsequent taxonomic changes to any of these species the authorship has been corrected below. -
Ediacaran Algal Cysts from the Doushantuo Formation, South China
Geological Magazine Ediacaran algal cysts from the Doushantuo www.cambridge.org/geo Formation, South China Małgorzata Moczydłowska1 and Pengju Liu2 1 Original Article Uppsala University, Department of Earth Sciences, Palaeobiology, Villavägen 16, SE 752 36 Uppsala, Sweden and 2Institute of Geology, Chinese Academy of Geological Science, Beijing 100037, China Cite this article: Moczydłowska M and Liu P. Ediacaran algal cysts from the Doushantuo Abstract Formation, South China. Geological Magazine https://doi.org/10.1017/S0016756820001405 Early-middle Ediacaran organic-walled microfossils from the Doushantuo Formation studied in several sections in the Yangtze Gorges area, South China, show ornamented cyst-like vesicles Received: 24 February 2020 of very high diversity. These microfossils are diagenetically permineralized and observed in pet- Revised: 1 December 2020 rographic thin-sections of chert nodules. Exquisitely preserved specimens belonging to seven Accepted: 2 December 2020 species of Appendisphaera, Mengeosphaera, Tanarium, Urasphaera and Tianzhushania contain Keywords: either single or multiple spheroidal internal bodies inside the vesicles. These structures indicate organic-walled microfossils; zygotic cysts; reproductive stages, endocyst and dividing cells, respectively, and are preserved at early to late Chloroplastida; microalgae; animal embryos; ontogenetic stages in the same taxa. This new evidence supports the algal affiliations for the eukaryotic evolution studied taxa and refutes previous suggestions of Tianzhushania being animal embryo or holo- Author for correspondence: Małgorzata zoan. The first record of a late developmental stage of a completely preserved specimen of Moczydłowska, Email: [email protected] T. spinosa observed in thin-section demonstrates the interior of vesicles with clusters of iden- tical cells but without any cavity that is diagnostic for recognizing algal cysts vs animal diapause cysts. -
With Two New Genera in Burmese Amber G.O
Бiологiчний вiсник МДПУ імені Богдана Хмельницького 6 (3), стор. 157¢164, 2016 Biological Bulletin of Bogdan Chmelnitskiy Melitopol State Pedagogical University, 6 (3), pp. 157¢164, 2016 ARTICLE UDC 595.768 A NEW WEEVIL TRIBE, MEKORHAMPHINI TRIB. NOV. (COLEOPTERA, ITHYCERIDAE) WITH TWO NEW GENERA IN BURMESE AMBER G.O. Poinar, Jr.1, A.E. Brown2, A.A. Legalov3 1Department of Integrative Biology, Oregon State University, Corvallis OR 97331 USA. E-mail: [email protected]. 22629 Euclid Avenue, Berkeley CA 94708 USA. 3Institute of Systematics and Ecology of Animals, Siberian Branch of Russian Academy of Sciences, Frunze str. 11, Novosibirsk 630091 Russia. E-mail: [email protected] A new tribe, Mekorhamphini trib. n., two new genera Mekorhamphus gen. n. and Habropezus gen. n. and two new species (M. gyralommus sp. n. and H. plaisiommus sp. n.) are described from Burmese amber. The new tribe resembles the tribe Mesophyletini but differs from the latter by possessing contiguous procoxal cavities and very wide elytra with regular striae. From the tribe Anchineini, it differs by the contiguous procoxal cavities, precoxal portion of the prosternum elongated, and swollen trochanters. The new taxa can be distinguished from modern Carini by having antennae attached near the middle of the rostrum, an elongated precoxal portion of the prosternum and enlarged trochanters. Key words: Curculionoidea, Carinae, Mekorhamphini trib. n., Mekorhamphus gyralommus gen. et sp. n., Habropezus plaisiommus gen. et sp. n., Early Cretaceous, Cenomanian. Citation: Poinar, G.O., Jr., Brown, A.E., Legalov, A.A. (2016). A new weevil tribe, Mekorhamphini trib. nov. (Coleoptera, Ithyceridae) with two new genera in Burmese amber. -
Vascular Plants of Santa Cruz County, California
ANNOTATED CHECKLIST of the VASCULAR PLANTS of SANTA CRUZ COUNTY, CALIFORNIA SECOND EDITION Dylan Neubauer Artwork by Tim Hyland & Maps by Ben Pease CALIFORNIA NATIVE PLANT SOCIETY, SANTA CRUZ COUNTY CHAPTER Copyright © 2013 by Dylan Neubauer All rights reserved. No part of this publication may be reproduced without written permission from the author. Design & Production by Dylan Neubauer Artwork by Tim Hyland Maps by Ben Pease, Pease Press Cartography (peasepress.com) Cover photos (Eschscholzia californica & Big Willow Gulch, Swanton) by Dylan Neubauer California Native Plant Society Santa Cruz County Chapter P.O. Box 1622 Santa Cruz, CA 95061 To order, please go to www.cruzcps.org For other correspondence, write to Dylan Neubauer [email protected] ISBN: 978-0-615-85493-9 Printed on recycled paper by Community Printers, Santa Cruz, CA For Tim Forsell, who appreciates the tiny ones ... Nobody sees a flower, really— it is so small— we haven’t time, and to see takes time, like to have a friend takes time. —GEORGIA O’KEEFFE CONTENTS ~ u Acknowledgments / 1 u Santa Cruz County Map / 2–3 u Introduction / 4 u Checklist Conventions / 8 u Floristic Regions Map / 12 u Checklist Format, Checklist Symbols, & Region Codes / 13 u Checklist Lycophytes / 14 Ferns / 14 Gymnosperms / 15 Nymphaeales / 16 Magnoliids / 16 Ceratophyllales / 16 Eudicots / 16 Monocots / 61 u Appendices 1. Listed Taxa / 76 2. Endemic Taxa / 78 3. Taxa Extirpated in County / 79 4. Taxa Not Currently Recognized / 80 5. Undescribed Taxa / 82 6. Most Invasive Non-native Taxa / 83 7. Rejected Taxa / 84 8. Notes / 86 u References / 152 u Index to Families & Genera / 154 u Floristic Regions Map with USGS Quad Overlay / 166 “True science teaches, above all, to doubt and be ignorant.” —MIGUEL DE UNAMUNO 1 ~ACKNOWLEDGMENTS ~ ANY THANKS TO THE GENEROUS DONORS without whom this publication would not M have been possible—and to the numerous individuals, organizations, insti- tutions, and agencies that so willingly gave of their time and expertise. -
Systematics, Genetics and Speciation
Systematics, Genetics and Speciation Fundamentals of Fish Biology 27 January 2014 Why should I listen today? Class objectives 1. understand general terms about Systematics of fish 2. be able to list the five methods of categorizing fish groups 3. understand how species evolve via allopatric and sympatric speciation 4. understand the taxonomy and binomial nomenclature behind the system of naming fish Some definitions • Systematics – the study of the evolutionary relationship among organisms • Taxonomy – the science of describing and classifying organisms • Evolutionary Trees – early diagrams used to show relationships among higher levels • Phylogenetic systematics –uses branching diagrams called cladograms – each branch represents a monophyletic group of organisms (e.g. species, families, order…) – uses characteristics that can be quantified and therefore reduces subjective classification Evolutionary Trees Cladograms More definitions • Monophyletic group is a group including an ancestor and all descendants (e.g. vertebrates) • Paraphyletic group is a group containing some but not all descendants of an ancestor (e.g. dinosaurs) • Polyphyly is a group containing descendants of different ancestors (e.g. invertebrates) Other ways of classifying fish • Warm vs cold water fishes (bass and trout) • Saltwater vs freshwater • Pelagic or benthic • Reproductive styles • Trophic level • Freshwater fish based on evolutionary history (primary, secondary, diadromy) Five categories of taxonomic methods • Morphometric measurements • Meristic traits – considered -
Can We Understand Evolution Without Symbiogenesis?
Can We Understand Evolution Without Symbiogenesis? Francisco Carrapiço …symbiosis is more than a mere casual and isolated biological phenomenon: it is in reality the most fundamental and universal order or law of life. Hermann Reinheimer (1915) Abstract This work is a contribution to the literature and knowledge on evolu- tion that takes into account the biological data obtained on symbiosis and sym- biogenesis. Evolution is traditionally considered a gradual process essentially consisting of natural selection, conducted on minimal phenotypical variations that are the result of mutations and genetic recombinations to form new spe- cies. However, the biological world presents and involves symbiotic associations between different organisms to form consortia, a new structural life dimension and a symbiont-induced speciation. The acknowledgment of this reality implies a new understanding of the natural world, in which symbiogenesis plays an important role as an evolutive mechanism. Within this understanding, symbiosis is the key to the acquisition of new genomes and new metabolic capacities, driving living forms’ evolution and the establishment of biodiversity and complexity on Earth. This chapter provides information on some of the key figures and their major works on symbiosis and symbiogenesis and reinforces the importance of these concepts in our understanding of the natural world and the role they play in the establishing of the evolutionary complexity of living systems. In this context, the concept of the symbiogenic superorganism is also discussed. Keywords Evolution · Symbiogenesis · Symbiosis · Symbiogenic superorgan- ism · New paradigm F. Carrapiço (*) Centre for Ecology Evolution and Environmental Change (CE3C); Centre for Philosophy of Science, Department of Plant Biology, Faculty of science, University of Lisbon, Lisbon, Portugal e-mail: [email protected] © Springer International Publishing Switzerland 2015 81 N. -
Systematics, Evolution and Phylogeny of Annelida – a Morphological Perspective
Memoirs of Museum Victoria 71: 247–269 (2014) Published December 2014 ISSN 1447-2546 (Print) 1447-2554 (On-line) http://museumvictoria.com.au/about/books-and-journals/journals/memoirs-of-museum-victoria/ Systematics, evolution and phylogeny of Annelida – a morphological perspective GÜNTER PURSCHKE1,*, CHRISTOPH BLEIDORN2 AND TORSTEN STRUCK3 1 Zoology and Developmental Biology, Department of Biology and Chemistry, University of Osnabrück, Barbarastr. 11, 49069 Osnabrück, Germany ([email protected]) 2 Molecular Evolution and Animal Systematics, University of Leipzig, Talstr. 33, 04103 Leipzig, Germany (bleidorn@ rz.uni-leipzig.de) 3 Zoological Research Museum Alexander König, Adenauerallee 160, 53113 Bonn, Germany (torsten.struck.zfmk@uni- bonn.de) * To whom correspondence and reprint requests should be addressed. Email: [email protected] Abstract Purschke, G., Bleidorn, C. and Struck, T. 2014. Systematics, evolution and phylogeny of Annelida – a morphological perspective . Memoirs of Museum Victoria 71: 247–269. Annelida, traditionally divided into Polychaeta and Clitellata, is an evolutionary ancient and ecologically important group today usually considered to be monophyletic. However, there is a long debate regarding the in-group relationships as well as the direction of evolutionary changes within the group. This debate is correlated to the extraordinary evolutionary diversity of this group. Although annelids may generally be characterised as organisms with multiple repetitions of identically organised segments and usually bearing certain other characters such as a collagenous cuticle, chitinous chaetae or nuchal organs, none of these are present in every subgroup. This is even true for the annelid key character, segmentation. The first morphology-based cladistic analyses of polychaetes showed Polychaeta and Clitellata as sister groups. -
Systematics - BIO 615
Systematics - BIO 615 Outline - History and introduction to phylogenetic inference 1. Pre Lamarck, Pre Darwin “Classification without phylogeny” 2. Lamarck & Darwin to Hennig (et al.) “Classification with phylogeny but without a reproducible method” 3. Hennig (et al.) to today “Classification with phylogeny & a reproducible method” Biosystematics History alpha phylogenetics Aristotle - Scala Naturae - ladder of perfection with humans taxonomy at top - DIFFICULT mental concept to dislodge! (use of terms like “higher” and “lower” for organisms persist) character identification evolution Linnaeus - perpetuated the ladder-like view of life linear, pre evolution descriptions phylogeny 1758 - Linnaeus grouped all animals into 6 higher taxa: 1. Mammals ( top ) 2. Birds collections classification biogeography 3. Reptiles 4. Fishes 5. Insects Describing taxa = assigning names to groups (populations) 6. Worms ( bottom ) = classification Outline - History and introduction to History phylogenetic inference Lamarck - 1800 - Major impact on Biology: 1. Pre Lamarck, Pre Darwin - First public account of evolution - proposed that modern species had descended from common ancestors over “Classification without phylogeny” immense periods of time - Radical! evolution = descent with modification 2. Lamarck & Darwin to Hennig (et al.) - Began with a ladder-like description… but considered “Classification with phylogeny but Linnaeus’s “worms” to be a chaotic “wastebucket” without a reproducible method” taxon 3. Hennig (et al.) to today - He raided the worm group -
Evolutionary History of Life
Evolutionary history of life The evolutionary history of life on Earth traces the processes by which living and fossil organisms evolved, from the earliest emergence of life to the present. Earth formed about 4.5 billion years (Ga) ago and evidence suggests life emerged prior to 3.7 Ga.[1][2][3] (Although there is some evidence of life as early as 4.1 to 4.28 Ga, it remains controversial due to the possible non- biological formation of the purported fossils.[1][4][5][6][7]) The similarities among all known present-day species indicate that they have diverged through the process of evolution from a common ancestor.[8] Approximately 1 trillion species currently live on Earth[9] of which only 1.75–1.8 million have been named[10][11] and 1.6 million documented in a central database.[12] These currently living species represent less than one percent of all species that have ever lived on earth.[13][14] The earliest evidence of life comes from biogenic carbon signatures[2][3] and stromatolite fossils[15] discovered in 3.7 billion- Life timeline Ice Ages year-old metasedimentary rocks from western Greenland. In 2015, 0 — Primates Quater nary Flowers ←Earliest apes possible "remains of biotic life" were found in 4.1 billion-year-old P Birds h Mammals [16][17] – Plants Dinosaurs rocks in Western Australia. In March 2017, putative evidence of Karo o a n ← Andean Tetrapoda possibly the oldest forms of life on Earth was reported in the form of -50 0 — e Arthropods Molluscs r ←Cambrian explosion fossilized microorganisms discovered in hydrothermal -
View Preprint
The origin of animals as microbial host volumes in nutrient- limited seas The microbe-stuffed gut, rather than the genome, represents the most dynamic gene reservoir within complex, multicellular metazoa (animals). Microbes are known to confer increased metabolic efficiency, increased nutrient recovery, and tolerance of ocean acidity to basal taxa such as sponges, arguably the extant taxa most comparable to the first metazoan. We hypothesize that metazoan origins may be rooted in the capability to compartmentalize, metabolize, and exchange genetic material with a modulated microbiome. We present evidence that the most parsimonious adaptive response of clonal eukaryotic colonies experiencing oligotrophic (nutrient-limited) conditions that accompanied Neoproterozoic glaciation events, which were broadly contemporaneous with metazoan origins, is to evolve a morphological volume to harbor a densified microbiome. Dense microbial communities housed within a cavity would increase instances of horizontal gene transfer between microorganisms and host, accelerating evolutionary innovation at the genetic and epigenetic levels for the holobiont. The accelerated tempo of genetic exchange would continue until the host’s metabolic and reproductive cells became spatially and temporally segregated from one another, at which point the process is effectively suppressed with the emergence of specialized gut and reproductive tissues. This framework may lead to new, testable hypotheses regarding metazoan evolution on Earth and a more tractable means of estimating the pervasiveness of complex, multicellular animal-like life with convergent morphologies on other planets. PeerJ Preprints | https://doi.org/10.7287/peerj.preprints.27173v1 | CC BY 4.0 Open Access | rec: 5 Sep 2018, publ: 5 Sep 2018 1 The origin of animals as microbial host volumes in 2 nutrient-limited seas 3 4 Zachary R. -
A Molecular Perspective on Systematics, Taxonomy and Classification Amazonian Discus Fishes of the Genus Symphysodon
SAGE-Hindawi Access to Research International Journal of Evolutionary Biology Volume 2011, Article ID 360654, 16 pages doi:10.4061/2011/360654 Research Article A Molecular Perspective on Systematics, Taxonomy and Classification Amazonian Discus Fishes of the Genus Symphysodon Manuella Villar Amado,1, 2 Izeni P. Farias,1 and Tomas Hrbek1, 3 1 Laboratorio´ de Evoluc¸ao˜ e Gen´etica Animal, Departamento de Biologia, Universidade Federal do Amazonas, Avenida Rodrigo Octavio´ Jordao˜ Ramos, 3000, 69077-000 Manaus, AM, Brazil 2 Instituto Federal de Educac¸ao,˜ Ciˆencia e Tecnologia do Esp´ırito Santo, Unidade Vitoria,´ Avenida Vitoria,´ 1729, 29040-780 Vitoria, ES, Brazil 3 Biology Department, University of Puerto Rico—Rio Piedras, 00931 San Juan, PR, Puerto Rico Correspondence should be addressed to Tomas Hrbek, [email protected] Received 21 December 2010; Accepted 2 May 2011 Academic Editor: Martin J. Genner Copyright © 2011 Manuella Villar Amado et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. With the goal of contributing to the taxonomy and systematics of the Neotropical cichlid fishes of the genus Symphysodon, we analyzed 336 individuals from 24 localities throughout the entire distributional range of the genus. We analyzed variation at 13 nuclear microsatellite markers, and subjected the data to Bayesian analysis of genetic structure. The results indicate that Symphysodon is composed of four genetic groups: group PURPLE—phenotype Heckel and abacaxi; group GREEN—phenotype green; group RED—phenotype blue and brown; and group PINK—populations of Xingu´ and Cameta.´ Although the phenotypes blue and brown are predominantly biological group RED, they also have substantial contributions from other biological groups, and the patterns of admixture of the two phenotypes are different. -
ICBEMP Analysis of Vascular Plants
APPENDIX 1 Range Maps for Species of Concern APPENDIX 2 List of Species Conservation Reports APPENDIX 3 Rare Species Habitat Group Analysis APPENDIX 4 Rare Plant Communities APPENDIX 5 Plants of Cultural Importance APPENDIX 6 Research, Development, and Applications Database APPENDIX 7 Checklist of the Vascular Flora of the Interior Columbia River Basin 122 APPENDIX 1 Range Maps for Species of Conservation Concern These range maps were compiled from data from State Heritage Programs in Oregon, Washington, Idaho, Montana, Wyoming, Utah, and Nevada. This information represents what was known at the end of the 1994 field season. These maps may not represent the most recent information on distribution and range for these taxa but it does illustrate geographic distribution across the assessment area. For many of these species, this is the first time information has been compiled on this scale. For the continued viability of many of these taxa, it is imperative that we begin to manage for them across their range and across administrative boundaries. Of the 173 taxa analyzed, there are maps for 153 taxa. For those taxa that were not tracked by heritage programs, we were not able to generate range maps. (Antmnnrin aromatica) ( ,a-’(,. .e-~pi~] i----j \ T--- d-,/‘-- L-J?.,: . ey SAP?E%. %!?:,KnC,$ESS -,,-a-c--- --y-- I -&zII~ County Boundaries w1. ~~~~ State Boundaries <ii&-----\ \m;qw,er Columbia River Basin .---__ ,$ 4 i- +--pa ‘,,, ;[- ;-J-k, Assessment Area 1 /./ .*#a , --% C-p ,, , Suecies Locations ‘V 7 ‘\ I, !. / :L __---_- r--j -.---.- Columbia River Basin s-5: ts I, ,e: I’ 7 j ;\ ‘-3 “.