Volume 9.2 Summer 2007
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Earliest Record of Megaphylls and Leafy Structures, and Their Initial Diversification
Review Geology August 2013 Vol.58 No.23: 27842793 doi: 10.1007/s11434-013-5799-x Earliest record of megaphylls and leafy structures, and their initial diversification HAO ShouGang* & XUE JinZhuang Key Laboratory of Orogenic Belts and Crustal Evolution, School of Earth and Space Sciences, Peking University, Beijing 100871, China Received January 14, 2013; accepted February 26, 2013; published online April 10, 2013 Evolutionary changes in the structure of leaves have had far-reaching effects on the anatomy and physiology of vascular plants, resulting in morphological diversity and species expansion. People have long been interested in the question of the nature of the morphology of early leaves and how they were attained. At least five lineages of euphyllophytes can be recognized among the Early Devonian fossil plants (Pragian age, ca. 410 Ma ago) of South China. Their different leaf precursors or “branch-leaf com- plexes” are believed to foreshadow true megaphylls with different venation patterns and configurations, indicating that multiple origins of megaphylls had occurred by the Early Devonian, much earlier than has previously been recognized. In addition to megaphylls in euphyllophytes, the laminate leaf-like appendages (sporophylls or bracts) occurred independently in several dis- tantly related Early Devonian plant lineages, probably as a response to ecological factors such as high atmospheric CO2 concen- trations. This is a typical example of convergent evolution in early plants. Early Devonian, euphyllophyte, megaphyll, leaf-like appendage, branch-leaf complex Citation: Hao S G, Xue J Z. Earliest record of megaphylls and leafy structures, and their initial diversification. Chin Sci Bull, 2013, 58: 27842793, doi: 10.1007/s11434- 013-5799-x The origin and evolution of leaves in vascular plants was phology and evolutionary diversification of early leaves of one of the most important evolutionary events affecting the basal euphyllophytes remain enigmatic. -
Giant Cladoxylopsid Trees Resolve Enigma of the Earth's Earliest Forest Stumps at Gilboa
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/6385893 Giant cladoxylopsid trees resolve enigma of the Earth's earliest forest stumps at Gilboa Article in Nature · May 2007 DOI: 10.1038/nature05705 · Source: PubMed CITATIONS READS 91 254 5 authors, including: Frank Mannolini Linda VanAller Hernick New York State Museum New York State Museum 8 PUBLICATIONS 160 CITATIONS 9 PUBLICATIONS 253 CITATIONS SEE PROFILE SEE PROFILE Ed Landing Christopher Berry New York State Museum Cardiff University 244 PUBLICATIONS 3,365 CITATIONS 48 PUBLICATIONS 862 CITATIONS SEE PROFILE SEE PROFILE All content following this page was uploaded by Ed Landing on 06 February 2017. The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately. Vol 446 | 19 April 2007 | doi:10.1038/nature05705 LETTERS Giant cladoxylopsid trees resolve the enigma of the Earth’s earliest forest stumps at Gilboa William E. Stein1, Frank Mannolini2, Linda VanAller Hernick2, Ed Landing2 & Christopher M. Berry3 The evolution of trees of modern size growing together in forests Middle Devonian (Eifelian) into the Carboniferous, were major fundamentally changed terrestrial ecosystems1–3. The oldest trees contributors to floras worldwide14. Traditionally considered inter- are often thought to be of latest Devonian age (about 380–360 Myr mediate between Lower Devonian vascular plants and ferns or old) as indicated by the widespread occurrence of Archaeopteris sphenopsids, we do not yet understand these plants well enough to (Progymnospermopsida)4. -
This Article Appeared in a Journal Published by Elsevier. the Attached
This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues. Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier’s archiving and manuscript policies are encouraged to visit: http://www.elsevier.com/copyright Author's personal copy Palaeogeography, Palaeoclimatology, Palaeoecology 299 (2011) 110–128 Contents lists available at ScienceDirect Palaeogeography, Palaeoclimatology, Palaeoecology journal homepage: www.elsevier.com/locate/palaeo Ecology and evolution of Devonian trees in New York, USA Gregory J. Retallack a,⁎, Chengmin Huang b a Department of Geological Sciences, University of Oregon, Eugene, Oregon 97403, USA b Department of Environmental Science and Engineering, University of Sichuan, Chengdu, Sichuan 610065, China article info abstract Article history: The first trees in New York were Middle Devonian (earliest Givetian) cladoxyls (?Duisbergia and Wattieza), Received 16 January 2010 with shallow-rooted manoxylic trunks. Cladoxyl trees in New York thus postdate their latest Emsian evolution Received in revised form 17 September 2010 in Spitzbergen. Progymnosperm trees (?Svalbardia and Callixylon–Archaeopteris) appeared in New York later Accepted 29 October 2010 (mid-Givetian) than progymnosperm trees from Spitzbergen (early Givetian). Associated paleosols are Available online 5 November 2010 evidence that Wattieza formed intertidal to estuarine mangal and Callixylon formed dry riparian woodland. -
Devonian As a Time of Major Innovation in Plants and Their Communities
1 Back to the Beginnings: The Silurian- 2 Devonian as a Time of Major Innovation 15 3 in Plants and Their Communities 4 Patricia G. Gensel, Ian Glasspool, Robert A. Gastaldo, 5 Milan Libertin, and Jiří Kvaček 6 Abstract Silurian, with the Early Silurian Cooksonia barrandei 31 7 Massive changes in terrestrial paleoecology occurred dur- from central Europe representing the earliest vascular 32 8 ing the Devonian. This period saw the evolution of both plant known, to date. This plant had minute bifurcating 33 9 seed plants (e.g., Elkinsia and Moresnetia), fully lami- aerial axes terminating in expanded sporangia. Dispersed 34 10 nate∗ leaves and wood. Wood evolved independently in microfossils (spores and phytodebris) in continental and 35AU2 11 different plant groups during the Middle Devonian (arbo- coastal marine sediments provide the earliest evidence for 36 12 rescent lycopsids, cladoxylopsids, and progymnosperms) land plants, which are first reported from the Early 37 13 resulting in the evolution of the tree habit at this time Ordovician. 38 14 (Givetian, Gilboa forest, USA) and of various growth and 15 architectural configurations. By the end of the Devonian, 16 30-m-tall trees were distributed worldwide. Prior to the 17 appearance of a tree canopy habit, other early plant groups 15.1 Introduction 39 18 (trimerophytes) that colonized the planet’s landscapes 19 were of smaller stature attaining heights of a few meters Patricia G. Gensel and Milan Libertin 40 20 with a dense, three-dimensional array of thin lateral 21 branches functioning as “leaves”. Laminate leaves, as we We are now approaching the end of our journey to vegetated 41 AU3 22 now know them today, appeared, independently, at differ- landscapes that certainly are unfamiliar even to paleontolo- 42 23 ent times in the Devonian. -
Rutgers Home Gardeners School 2015: Workshop 32 Plant Evolution
Plant Dating Game Through Time Bruce Crawford March 21, 2015 Director, Rutgers Gardens www.rutgersgardens.rutgers.edu Oldest living organism – Bacteria, at least 3.2 Billion years old! Fungi probably colonized the land during the Cambrian (542–488.3 MYA), long before land plants Ferns Initially developed around 350 Million Years Ago (MYA), although the ferns that we know date back 250 million years or sooner. Problem: Lack flowers and seeds, but produce spores and a temporary plant form called a prothallus that produces eggs and sperm. Bar of choice: Water Bar Attraction: Malic Acid Gymnosperms Initially developed around 300 MYA and are represented today by the Pines, Cycads and the Ginkgo. Gymnosperm literally means naked (Gumnós) seed (Spérma). Problem: Lack attractive flowers, but they do produce individual male pollen baring cones and female or ovule bearing cone. Bar of choice: Windy Bar Attraction: Pure luck! Angiosperms There is a great deal of confusion as to when they initially developed but, it is between 160 and 140 MYA. The world was starting to cool down and the Ferns and Gymnosperms were having trouble with the change in ‘Management’. Angiosperm means seed (Spérma) contained within a vessel (Angeîon) Problem: Relatively few to start, it was a lonely bar with lots of ‘Lonely Eyes” – that changed! Bar of choice: Bug Bar Attraction: Make-up! Color, nectaries, high protein pollen, high water vapor, fragrance Grasses Developed about 65 Million Years Ago during periods of reduced rainfall. Problem: Flowers are a bit less colorful attractive Bar of choice: Windy Bar Attraction: Once again, back to pure luck! Devonian 419-358 MYA (Average O2 levels at 15% vs today’s 21%) First fossilized evidence of Lichens (a symbiotic relationship between fungus and photosynthetic algae) and Liverworts The early part of this period was characterized by plants that did not have roots or leaves like the plants most common today and many had no vascular tissue at all. -
Annual Review of Pteridological Research - 2000
Annual Review of Pteridological Research - 2000 Annual Review of Pteridological Research - 2000 Literature Citations All Citations 1. Adhya, T. K., K. Bharati, S. R. Mohanty, B. Ramakrishnan, V. R. Rao, N. Sethunathan & R. Wassmann. 2000. Methane emission from rice fields at Cuttack, India. Nutrient Cycling in Agroecosystems 58: 95-105. [Azolla] 2. Ahlenslager, K. E. 2000. Conservation of rare plants on public lands. American Journal of Botany 87 Suppl. 6: 89. [Abstract] 3. Alam, M. S., N. Chopra, M. Ali & M. Niwa. 2000. Normethyl pentacyclic and lanostane-type triterpenes from Adiantum venustum. Phytochemistry (Oxford) 54: 215-220. 4. Allam, A. F. 2000. Evaluation of different means of control of snail intermediate host of Schistosoma mansoni. Journal of the Egyptian Society of Parasitology 30: 441-450. [Azolla pinnata] 5. Allison, A. & F. Kraus. 2000. A new species of frog of the genus Xenorhina (Anura: Microhylidae) from the north coast ranges of Papua New Guinea. Herpetologica 56: 285-294. [Asplenium] 6. Alonso-Amelot, M. E., M. P. Calcagno & M. Perez-Injosa. 2000. Growth and selective defensive potential in relation to altitude in neotropical Pteridium aquilinum var. caudatum. Pp. 43-47. In J. A. Taylor & R. T. Smith (Eds.). Bracken fern: toxicity, biology and control. International Bracken Group, Aberystwyth. 7. Alonso-Amelot, M. E., U. F. Castillo, M. Avendano, B. L. Smith & D. R. Lauren. 2000. Milk as a vehicle for the transfer of ptaquiloside, a bracken carcinogen. Pp. 86-90. In J. A. Taylor & R. T. Smith (Eds.). Bracken fern: toxicity, biology and control. International Bracken Group, Aberystwyth. [Pteridium aquilinum] 8. Alonso-Amelot, M. -
The Anatomy of Arborescent Plant Life Through Time Mike Viney
The Anatomy of Arborescent Plant Life through Time Mike Viney Tree Fern Guairea carnieri Paraguay, South America Permian Introduction Collectors of petrified wood focus on permineralized plant material related to arborescent (tree-like) plant life. Fascination with fossil wood may be related to human reverence for living trees. Trees provide humans and other organisms with shelter and food. We plant trees near our homes and in our communities to enrich the environment. From crib to grave they cradle our bodies. Trees define many biomes. Trees help moderate Earth’s atmosphere sequestering carbon and releasing oxygen. Trees are one of the first plant categories a child learns. Asking a person to identify a plant as a tree may seem like “child’s play”; however, defining a tree can be difficult. The United States Forest Service defines a tree as a woody plant at least 13 feet (4 m) tall with a single trunk at least 3 inches (7.62 cm) in diameter at breast height (4.5 ft; 150 cm) (Petrides, 1993, p. 4). This definition fits well with many people’s concept of a tree being a large, columnar, woody, long-lived organism. However, many trees are not constructed from secondary growth (wood), such as palms and tree ferns. Some species, such as black willow, are multi-trunked. Size can also be problematic as an Engelmann spruce growing at tree line may be small compared to one growing at a lower elevation. Some species, such as the juniper, can grow as shrubs or trees. The Japanese art of bonsai demonstrates how environment can effect tree growth to extremes. -
The Evolution of the First Forests in the Devonian* Ýволþöия Первых Девонских Лесов
Вестник ÈГ Коми ÍЦ УрО РАН, ноябрь, 2019 г., № 11 ÓÄÊ 561: 581.332: 552.52/.57: 551.734(234.83) DOI: 10.19110/2221-1381-2019-11-20-24 THE EVOLUTION OF THE FIRST FORESTS IN THE DEVONIAN* C. M. Berry School of Earth and Ocean Sciences, Cardiff University, Wales, UK; [email protected] In recent years much new data have been obtained regarding the earliest trees, and their ecology in early forest ecosystems. Aspects of this new data are summarised below, concentrating on the Mid Devonian and earliest Late Devonian, c. 390—380 million years ago, before the dominance of Archaeopteris. The arborescent cladoxylopsids, archaeopteridaleans and lycopsids are considered, as well as the recumbent but large woody aneurophytes. Until now, cladoxylopsid dominated forests, cladoxylopsid/ aneurophyte forests, early Archaeopteris, and lycopsid forests are the four forest types identified, largely on the basis of near coastal, wet environments. True in situ fossil forests are extremely rare during this time interval. Future research aims to identify further forest types, to better understand their relationship to palaeogeography and sedimentary environment, and to spread the understanding of early forests beyond the Old Red continent. Keywords: palaeobotany, forest ecology, Lycopsida, Aneurophytales, Archaeopteridales, Cladoxylopsida. ÝволÞÖия первых девоНских лесов К. Áåððè Школа íàóê о Земле и океане, Кардиффский университет, Óýëüñ, Великобритания В пîñëåдíèå ãîды пîëó÷åíî ìíîãî íîвых дàííых î ñàìых ðàííèх в èñòîðèè Çåìëè дðåвåñíых ðàñòåíèях è èх ýкîëîãèè в ðàííèх ëåñíых ýкîñèñòåìàх. Ýòè íîâûå дàííыå кðàòкî èзëîжåíы íèжå, ñ àкöåíòîì íà ñðåдíåдåвîíñкèå è ñàìыå ðàííèå пîздíåдåвîícкèå (390—380 ìëí ëåò íàзàд) ðàñòåíèя, дî ãîñпîдñòвà Archaeopteris. -
A New Iridopteridalean from the Devonian of Venezuela Author(S): Christopher M
A New Iridopteridalean from the Devonian of Venezuela Author(s): Christopher M. Berry and William E. Stein Source: International Journal of Plant Sciences, Vol. 161, No. 5 (September 2000), pp. 807-827 Published by: The University of Chicago Press Stable URL: http://www.jstor.org/stable/10.1086/314295 . Accessed: 21/02/2014 08:50 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. The University of Chicago Press is collaborating with JSTOR to digitize, preserve and extend access to International Journal of Plant Sciences. http://www.jstor.org This content downloaded from 131.251.254.13 on Fri, 21 Feb 2014 08:50:59 AM All use subject to JSTOR Terms and Conditions Int. J. Plant Sci. 161(5):807±827. 2000. q 2000 by The University of Chicago. All rights reserved. 1058-5893/2000/16105-0011$03.00 A NEW IRIDOPTERIDALEAN FROM THE DEVONIAN OF VENEZUELA Christopher M. Berry1 and William E. Stein Department of Earth Sciences, Cardiff University, P.O. Box 914, Cardiff CF10 3YE, Wales, United Kingdom; and Department of Biological Sciences, State University of New York, Binghamton, New York 13902-6000, U.S.A. -
Environmental Influences on the Stable Carbon Isotopic Composition of Devonian and Early Carboniferous Land Plants
West Chester University Digital Commons @ West Chester University Earth & Space Sciences Faculty Publications Earth & Space Sciences 10-1-2019 Environmental influences on the stable carbon isotopic composition of Devonian and Early Carboniferous land plants Zhenzhu Wan Thomas J. Algeo Patricia G. Gensel Stephen E. Scheckler William E. Stein See next page for additional authors Follow this and additional works at: https://digitalcommons.wcupa.edu/geol_facpub Part of the Paleobiology Commons Authors Zhenzhu Wan, Thomas J. Algeo, Patricia G. Gensel, Stephen E. Scheckler, William E. Stein, Walter L. Cressler III, Christopher M. Berry, Honghe Xu, Harold D. Rowe, and Peter E. Sauer Palaeogeography, Palaeoclimatology, Palaeoecology xxx (xxxx) xxxx Contents lists available at ScienceDirect Palaeogeography, Palaeoclimatology, Palaeoecology journal homepage: www.elsevier.com/locate/palaeo Environmental influences on the stable carbon isotopic composition of Devonian and Early Carboniferous land plants ⁎ Zhenzhu Wana, Thomas J. Algeoa,b,c, , Patricia G. Genseld, Stephen E. Schecklere,f, William E. Steing, Walter L. Cressler IIIh, Christopher M. Berryi, Honghe Xuj, Harold D. Rowek, Peter E. Sauerl a Department of Geology, University of Cincinnati, Cincinnati, OH 45221-0013, USA b State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China c State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China d Department of Biology, University -
Review Silurian-Devonian Origins of Ferns and Lycophytes - What We Know, What We Need to Find Out
FERN GAZ. 20(6):217-242. 2017 217 REVIEW SILURIAN-DEVONIAN ORIGINS OF FERNS AND LYCOPHYTES - WHAT WE KNOW, WHAT WE NEED TO FIND OUT P.G. GENsEl Department of Biology, University of North Carolina Chapel Hill, NC 27599-3280, UsA Email: [email protected] Key words: silurian-Devonian, lycophytes, basal euphyllophytes, ferns evolution, phylogenetic relationships. ABSTRACT This represents a synopsis of current knowledge of the siluro-Devonian fossil record concerning evolution of lycophytes and ferns. This is the time period when several taxa or lineages at different grades of organisation existed that may be informative about the origins of these groups or structures typical of these groups. Considerable new data, including earlier first appearances of lineages and plant structures, new data about siluro-Devonian lycopsids or basal euphyllophytes, and new whole plant reconstructions of small to tree-size plants in both lineages, have been published in recent years. It is not possible to be completely comprehensive, but the taxa discussed are either central to established ideas, or provide new information in relation to phylogenetic relationships and evolutionary trends. It remains difficult to trace the phylogenetic relationships of early plants relative to extant lineages. New data are reviewed which may be important in reassessing homology of characters and/or hypotheses of such relationships or in determining which taxa to exclude. Including fossils in estimates of relationships of these major lineages of plants will provide a more accurate and comprehensive understanding of the past history of seedless vascular plants. INTRODUCTION A consensus classification of extant seedless vascular plants by PPG1 (2016), reflecting molecular and some morphological phylogenies (smith et al., 2006b; Kenrick & Crane, 1997; Pryer et al., 2001; 2009; schneider et al., 2009; and others) recognises lycopodiopsida (with three families and collectively referred to as lycophytes) and a grade “euphyllophytes” which consists of two clades - seed plants and Polypodiopsida (Figure 1). -
Mid-Devonian Archaeopteris Roots Signal Revolutionary Change in Earliest Fossil Forests
This is a repository copy of Mid-Devonian Archaeopteris roots signal revolutionary change in earliest fossil forests. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/157363/ Version: Accepted Version Article: Stein, W.E., Berry, C.M., Morris, J.L. et al. (8 more authors) (2020) Mid-Devonian Archaeopteris roots signal revolutionary change in earliest fossil forests. Current Biology, 30 (3). 421-431.e2. ISSN 0960-9822 https://doi.org/10.1016/j.cub.2019.11.067 Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). Reuse This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs (CC BY-NC-ND) licence. This licence only allows you to download this work and share it with others as long as you credit the authors, but you can’t change the article in any way or use it commercially. More information and the full terms of the licence here: https://creativecommons.org/licenses/ Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ Manuscript 1 1 MID DEVONIAN Archaeopteris ROOTS 2 SIGNAL REVOLUTIONARY CHANGE 3 IN EARLIEST FOSSIL FORESTS 4 5 William E. Stein1,6,7,*, Christopher M. Berry2,6, Jennifer L. Morris2,6, Linda VanAller Hernick3, 6 Frank Mannolini3, Charles Ver Straeten3, Ed Landing3, John E.