Dynamic Evolutionary Change in Post-Paleozoic Echinoids and the Importance of Scale When Interpreting Changes in Rates of Evolution
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Echinoidea Clypeasteroidea
Biodiversity Journal, 2014, 5 (2): 291–358 Analysis of some astriclypeids (Echinoidea Clypeast- eroida) Paolo Stara1* & Luigi Sanciu2 1Centro Studi di Storia Naturale del Mediterraneo - Museo di Storia Naturale Aquilegia, Via Italia 63, Pirri-Cagliari and Geomuseo Monte Arci, Masullas, Oristano, Sardinia, Italy; e-mail: [email protected] *Corresponding author The systematic position of some astriclypeid species assigned through times to the genera Amphiope L. Agassiz, 1840 and Echinodiscus Leske, 1778 is reviewed based on the plating ABSTRACT pattern characteristics of these two genera universally accepted, and on the results of new studies. A partial re-arrangement of the family Astriclypeidae Stefanini, 1912 is herein pro- posed, with the institution of Sculpsitechinus n. g. and Paraamphiope n. g., both of them char- acterized by a peculiar plating-structure of the interambulacrum 5 and of the ambulacra I and V. Some species previously attributed to Amphiope and Echinodiscus are transferred into these two new genera. Two new species of Astriclypeidae are established: Echinodiscus andamanensis n. sp. and Paraamphiope raimondii n. sp. Neotypes are proposed for Echin- odiscus tenuissimus L. Agassiz, 1840 and E. auritus Leske, 1778, since these species were still poorly defined, due to the loss of the holotypes and, for E. auritus, also to the unclear geographical/stratigraphical information about the type-locality. A number of additional nom- inal fossil and extant species of "Echinodiscus" needs revision based on the same method. KEY WORDS Astriclypeidae; Amphiope; Paraamphiope; Echinodiscus; Sculpsitechinus; Oligo-Miocene. Received 28.02.2014; accepted 14.03.2014; printed 30.06.2014 Paolo Stara (ed.). Studies on some astriclypeids (Echinoidea Clypeasteroida), pp. -
SI Appendix for Hopkins, Melanie J, and Smith, Andrew B
Hopkins and Smith, SI Appendix SI Appendix for Hopkins, Melanie J, and Smith, Andrew B. Dynamic evolutionary change in post-Paleozoic echinoids and the importance of scale when interpreting changes in rates of evolution. Corrections to character matrix Before running any analyses, we corrected a few errors in the published character matrix of Kroh and Smith (1). Specifically, we removed the three duplicate records of Oligopygus, Haimea, and Conoclypus, and removed characters C51 and C59, which had been excluded from the phylogenetic analysis but mistakenly remain in the matrix that was published in Appendix 2 of (1). We also excluded Anisocidaris, Paurocidaris, Pseudocidaris, Glyphopneustes, Enichaster, and Tiarechinus from the character matrix because these taxa were excluded from the strict consensus tree (1). This left 164 taxa and 303 characters for calculations of rates of evolution and for the principal coordinates analysis. Other tree scaling methods The most basic method for scaling a tree using first appearances of taxa is to make each internal node the age of its oldest descendent ("stand") (2), but this often results in many zero-length branches which are both theoretically questionable and in some cases methodologically problematic (3). Several methods exist for modifying zero-length branches. In the case of the results shown in Figure 1, we assigned a positive length to each zero-length branch by having it share time equally with a preceding, non-zero-length branch (“equal”) (4). However, we compared the results from this method of scaling to several other methods. First, we compared this with rates estimated from trees scaled such that zero-length branches share time proportionally to the amount of character change along the branches (“prop”) (5), a variation which gave almost identical results as the method used for the “equal” method (Fig. -
Spatangus Purpureus O.F. Müller, 1776
Spatangus purpureus O.F. Müller, 1776 AphiaID: 124418 VIOLET HEART-URCHIN Animalia (Reino) > Echinodermata (Filo) > Echinozoa (Subfilo) > Echinoidea (Classe) > Euechinoidea (Subclasse) > Irregularia (Infraclasse) > Atelostomata (Superordem) > Spatangoida (Ordem) > Brissidina (Subordem) > Spatangoidea (Superfamilia) > Spatangidae (Familia) © Vasco Ferreira Hans Hillewaert Roberto Pillon Facilmente confundível com: 1 Echinocardium cordatum Ouriço-coração Sinónimos Prospatangus purpureus (O.F. Müller, 1776) Spatagus purpureus O.F. Müller, 1776 Spatangus meridionalis Risso, 1825 Spatangus Regina Spatangus reginae Gray, 1851 Spatangus spinosissimus Desor in L. Agassiz & Desor, 1847b Referências additional source Hansson, H. (2004). North East Atlantic Taxa (NEAT): Nematoda. Internet pdf Ed. Aug 1998., available online at http://www.tmbl.gu.se/libdb/taxon/taxa.html [details] basis of record Hansson, H.G. (2001). Echinodermata, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,. 50: pp. 336-351. [details] additional source Southward, E.C.; Campbell, A.C. (2006). [Echinoderms: keys and notes for the identification of British species]. Synopses of the British fauna (new series), 56. Field Studies Council: Shrewsbury, UK. ISBN 1-85153-269-2. 272 pp. [details] additional source Muller, Y. (2004). Faune et flore du littoral du Nord, du Pas-de-Calais et de la Belgique: inventaire. [Coastal fauna and flora of the Nord, Pas-de-Calais and Belgium: inventory]. Commission Régionale de Biologie Région Nord Pas-de-Calais: France. 307 pp., available online at http://www.vliz.be/imisdocs/publications/145561.pdf [details] original description Müller, O. F. (1776). Zoologiae Danicae prodromus: seu Animalium Daniae et Norvegiae indigenarum characteres, nomina, et synonyma imprimis popularium. -
Echinodermata) Durant El Període 2014-2018
NEMUS núm. 9. 2019 Sobre la descripció d’espècies noves de la classe Echinoidea (Echinodermata) durant el període 2014-2018 Vicent Gual i Orti1, Javier Segura Navarro1 & Enric Forner i Valls1 1. Ateneu de Natura. Sant Roc, 125, 3r. 5a. 12004 Castelló de la Plana. [email protected]. En el camp de la paleontologia el treball de descripció de les espècies que s’han conservat al registre fòssil està molt lluny d’haver conclòs. De manera que d’una manera dispersa i arreu del món hi ha un continu degoteig de publicacions on es descriuen espècies noves. Dins la paleontologia, l’equinologia, ocupa un paper significatiu tant a nivell científic com a nivell de col·leccionisme privat i museístic. Aquesta importància, potser està moti- vada per la bona conservació de la carcassa dels equínids, que està constituïda per calcita, cosa que afavoreix la seua fossilització i proporciona un registre fòssil ric de la classe Echinoidea. L’interès del treball és donar un visió global i actual dels treballs de descripció de la classe Echinoidea, de la qual no s’ha publicat cap treball de recopilació des de l’any 2008. Disposar d’una fotografia, una mostra, del que està passant ara. Per altra banda, es vol aprofundir en certs aspectes que sovint no són analitzats. Com el lloc geogràfic i les edats geològiques en les quals s’estan fent descripcions o en quines revistes científiques i per qui s’estan publicant les espècies noves. De l’estudi es conclou, atesos els treballs que s’ha pogut enregistrar, que durant els últims cinc anys, 2014-2018, s’han descrit al món 74 espècies noves d’equínids, per 77 autors, que s’han publicat en 30 revistes diferents, mitjançant 53 articles. -
Arbacia Lixula (Linnaeus, 1758)
Arbacia lixula (Linnaeus, 1758) AphiaID: 124249 OURIÇO-NEGRO Animalia (Reino) > Echinodermata (Filo) > Echinozoa (Subfilo) > Echinoidea (Classe) > Euechinoidea (Subclasse) > Carinacea (Infraclasse) > Echinacea (Superordem) > Arbacioida (Ordem) > Arbaciidae (Familia) Vasco Ferreira Vasco Ferreira Estatuto de Conservação Sinónimos Arbacia aequituberculata (Blainville, 1825) Arbacia australis Lovén, 1887 Arbacia grandinosa (Valenciennes, 1846) Arbacia pustulosa (Leske, 1778) Cidaris pustulosa Leske, 1778 Echinocidaris (Agarites) loculatua (Blainville, 1825) Echinocidaris (Tetrapygus) aequituberculatus (Blainville, 1825) Echinocidaris (Tetrapygus) grandinosa (Valenciennes, 1846) 1 Echinocidaris (Tetrapygus) pustulosa (Leske, 1778) Echinocidaris aequituberculata (Blainville, 1825) Echinocidaris grandinosa (Valenciennes, 1846) Echinocidaris loculatua (Blainville, 1825) Echinocidaris pustulosa (Leske, 1778) Echinus aequituberculatus Blainville, 1825 Echinus equituberculatus Blainville, 1825 Echinus grandinosus Valenciennes, 1846 Echinus lixula Linnaeus, 1758 Echinus loculatus Blainville, 1825 Echinus neapolitanus Delle Chiaje, 1825 Echinus pustulosus (Leske, 1778) Referências additional source Hayward, P.J.; Ryland, J.S. (Ed.). (1990). The marine fauna of the British Isles and North-West Europe: 1. Introduction and protozoans to arthropods. Clarendon Press: Oxford, UK. ISBN 0-19-857356-1. 627 pp. [details] basis of record Hansson, H.G. (2001). Echinodermata, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list -
The Carboniferous Evolution of Nova Scotia
Downloaded from http://sp.lyellcollection.org/ by guest on September 27, 2021 The Carboniferous evolution of Nova Scotia J. H. CALDER Nova Scotia Department of Natural Resources, PO Box 698, Halifax, Nova Scotia, Canada B3J 2T9 Abstract: Nova Scotia during the Carboniferous lay at the heart of palaeoequatorial Euramerica in a broadly intermontane palaeoequatorial setting, the Maritimes-West-European province; to the west rose the orographic barrier imposed by the Appalachian Mountains, and to the south and east the Mauritanide-Hercynide belt. The geological affinity of Nova Scotia to Europe, reflected in elements of the Carboniferous flora and fauna, was mirrored in the evolution of geological thought even before the epochal visits of Sir Charles Lyell. The Maritimes Basin of eastern Canada, born of the Acadian-Caledonian orogeny that witnessed the suture of Iapetus in the Devonian, and shaped thereafter by the inexorable closing of Gondwana and Laurasia, comprises a near complete stratal sequence as great as 12 km thick which spans the Middle Devonian to the Lower Permian. Across the southern Maritimes Basin, in northern Nova Scotia, deep depocentres developed en echelon adjacent to a transform platelet boundary between terranes of Avalon and Gondwanan affinity. The subsequent history of the basins can be summarized as distension and rifting attended by bimodal volcanism waning through the Dinantian, with marked transpression in the Namurian and subsequent persistence of transcurrent movement linking Variscan deformation with Mauritainide-Appalachian convergence and Alleghenian thrusting. This Mid- Carboniferous event is pivotal in the Carboniferous evolution of Nova Scotia. Rapid subsidence adjacent to transcurrent faults in the early Westphalian was succeeded by thermal sag in the later Westphalian and ultimately by basin inversion and unroofing after the early Permian as equatorial Pangaea finally assembled and subsequently rifted again in the Triassic. -
Big Oyster, Robust Echinoid: an Unusual Association from the Maastrichtian Type Area (Province of Limburg, Southern Netherlands)
Swiss Journal of Palaeontology (2018) 137:357–361 https://doi.org/10.1007/s13358-018-0151-3 (0123456789().,-volV)(0123456789().,-volV) REGULAR RESEARCH ARTICLE Big oyster, robust echinoid: an unusual association from the Maastrichtian type area (province of Limburg, southern Netherlands) 1,2 3 Stephen K. Donovan • John W. M. Jagt Received: 27 February 2018 / Accepted: 10 May 2018 / Published online: 1 June 2018 Ó Akademie der Naturwissenschaften Schweiz (SCNAT) 2018 Abstract Large, denuded tests of holasteroid echinoids were robust benthic islands in the Late Cretaceous seas of northwest Europe. A test of Hemipneustes striatoradiatus (Leske) from the Nekum Member (Maastricht Formation; upper Maastrichtian) of southern Limburg, the Netherlands, is encrusted by a large oyster, Pycnodonte (Phygraea) vesiculare (Lamarck). This specimen is a palaeoecological conundrum, at least in part. No other members of the same oyster spatfall attached to this test and survived. Indeed, only two other, much smaller bivalve shells, assignable to the same species, attached either then or somewhat later. The oyster, although large, could have grown to this size in a single season. The larval oyster cemented high on the test and this would have been advantageous initially, the young shell being elevated above sediment-laden bottom waters. However, as the oyster grew, the incurrent margin of the commissure would have grown closer to the sediment surface. Thus, the quality of the incurrent water probably deteriorated with time. Keywords Late Cretaceous Á Pycnodonte Á Hemipneustes Á Taphonomy Á Palaeoecology Introduction et al. 2013, 2017). Associations on holasteroid tests may be monospecific or nearly so, such as dense accumulations of Large holasteroid echinoids, such as the genera pits assigned to Oichnus Bromley, 1981 (see, for example, Echinocorys Leske, 1778, Cardiaster Forbes, 1850, and Donovan and Jagt 2002; Hammond and Donovan 2017; Hemipneustes Agassiz, 1836, in the Upper Cretaceous of Donovan et al. -
Benthic Habitat Classes and Trawl Fishing Disturbance in New Zealand Waters Shallower Than 250 M
Benthic habitat classes and trawl fishing disturbance in New Zealand waters shallower than 250 m New Zealand Aquatic Environment and Biodiversity Report No.144 S.J. Baird, J. Hewitt, B.A. Wood ISSN 1179-6480 (online) ISBN 978-0-477-10532-3 (online) January 2015 Requests for further copies should be directed to: Publications Logistics Officer Ministry for Primary Industries PO Box 2526 WELLINGTON 6140 Email: [email protected] Telephone: 0800 00 83 33 Facsimile: 04-894 0300 This publication is also available on the Ministry for Primary Industries websites at: http://www.mpi.govt.nz/news-resources/publications.aspx http://fs.fish.govt.nz go to Document library/Research reports © Crown Copyright - Ministry for Primary Industries Contents EXECUTIVE SUMMARY 1 1. INTRODUCTION 3 The study area 3 2. COASTAL BENTHIC HABITAT CLASSES 4 2.1 Introduction 4 2.2 Habitat class definitions 6 2.3 Sensitivity of the habitat to fishing disturbance 10 3. SPATIAL PATTERN OF BOTTOM-CONTACTING TRAWL FISHING ACTIVITY 11 3.1 Bottom-contact trawl data 12 3.2 Spatial distribution of trawl data 21 3.3 Trawl footprint within the study area 26 3.4 Overlap of five-year trawl footprint on habitats within 250 m 32 3.5 GIS output from the overlay of the trawl footprint and habitat classes 37 4. SUMMARY OF NON-TRAWL BOTTOM-CONTACT FISHING METHODS IN THE STUDY AREA 38 5. DISCUSSION 39 6. ACKNOWLEDGMENTS 41 7. REFERENCES 42 APPENDIX 1: AREAS CLOSED TO FISHING WITHIN THE STUDY AREA 46 APPENDIX 2: MAPS SHOWING THE DISTRIBUTION OF THE DATA INPUTS FOR THE BENTHIC HABITAT DESCRIPTORS 49 APPENDIX 3: SENSITIVITY TO FISHING DISTURBANCE 53 APPENDIX 4: TRAWL FISHING DATA 102 APPENDIX 5: CELL-BASED TRAWL SUMMARIES 129 APPENDIX 6: TRAWL FOOTPRINT SUMMARY 151 APPENDIX 7: TRAWL FOOTPRINT – HABITAT OVERLAY 162 APPENDIX 8: SUMMARY OF DREDGE OYSTER AND SCALLOP EFFORT DATA WITHIN 250 M, 1 OCTOBER 2007–30 SEPTEMBER 2012 165 APPENDIX 9: SUMMARY OF DANISH SEINE EFFORT 181 EXECUTIVE SUMMARY Baird, S.J.; Hewitt, J.E.; Wood, B.A. -
Cell Type Phylogenetics Informs the Evolutionary Origin of Echinoderm Larval Skeletogenic Cell Identity
ARTICLE https://doi.org/10.1038/s42003-019-0417-3 OPEN Cell type phylogenetics informs the evolutionary origin of echinoderm larval skeletogenic cell identity Eric M. Erkenbrack 1,2 & Jeffrey R. Thompson3,4 1234567890():,; The multiplicity of cell types comprising multicellular organisms begs the question as to how cell type identities evolve over time. Cell type phylogenetics informs this question by com- paring gene expression of homologous cell types in distantly related taxa. We employ this approach to inform the identity of larval skeletogenic cells of echinoderms, a clade for which there are phylogenetically diverse datasets of spatial gene expression patterns. We deter- mined ancestral spatial expression patterns of alx1, ets1, tbr, erg, and vegfr, key components of the skeletogenic gene regulatory network driving identity of the larval skeletogenic cell. Here we show ancestral state reconstructions of spatial gene expression of extant eleutherozoan echinoderms support homology and common ancestry of echinoderm larval skeletogenic cells. We propose larval skeletogenic cells arose in the stem lineage of eleutherozoans during a cell type duplication event that heterochronically activated adult skeletogenic cells in a topographically distinct tissue in early development. 1 Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06511 USA. 2 Yale Systems Biology Institute, Yale University, West Haven, CT 06516, USA. 3 Department of Geosciences, Baylor University, Waco, TX 76706, USA. 4 Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, USA. Correspondence and requests for materials should be addressed to E.M.E. (email: [email protected]) or to J.R.T. (email: [email protected]) COMMUNICATIONS BIOLOGY | (2019) 2:160 | https://doi.org/10.1038/s42003-019-0417-3 | www.nature.com/commsbio 1 ARTICLE COMMUNICATIONS BIOLOGY | https://doi.org/10.1038/s42003-019-0417-3 ell types are evolutionary units that have diversified in once in the stem lineage of eleutherozoan echinoderms. -
Download Download
Flores, J.N., Penchaszadeh, P.E., & Brogger, M.I. (2021). Heart urchins from the depths: Corparva lyrida gen. et sp. nov. (Palaeotropidae), and new records for the southwestern Atlantic Ocean. Revista de Biología Tropical, 69(S1), 14-34. DOI 10.15517/rbt. v69iSuppl.1.46320 DOI 10.15517/rbt.v69iSuppl.1.46320 Heart urchins from the depths: Corparva lyrida gen. et sp. nov. (Palaeotropidae), and new records for the southwestern Atlantic Ocean Jonathan N. Flores1* Pablo E. Penchaszadeh1 Martín I. Brogger2 1. Laboratorio de Ecosistemas Costeros, Plataforma y Mar Profundo. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (CONICET), Av. Ángel Gallardo 470, C1405DJR, Buenos Aires, Argentina; jflores@macn. gov.ar; [email protected] 2. Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos, Instituto de Biología de Organismos Marinos (CONICET), Bvd. Brown 2915, U9120ACD, Puerto Madryn, Chubut, Argentina; brogger@cenpat-conicet. gob.ar (*Correspondence). Received 07-V-2020. Corrected 08-VIII-2020. Accepted 07-X-2020. ABSTRACT Introduction: Sea urchins in the order Spatangoida are the most diverse group of extant echinoids. Objective: Describe a new genus and species of Spatangoida from abyssal depths, and add new records for known spe- cies. Methods: Specimens were collected during several cruises at different areas of the southwestern Atlantic Ocean (SWAO), among 37-55° S latitude at depths ranging from 55 to 3 000 m. We present morphological and ultrastructure analyses. Results: Corparva lyrida gen. et sp. nov. (Palaeotropidae) is described from the Mar del Plata Canyon on the Argentine continental slope (2 950 m depth), the first record of this family from Argentina. -
Annual Report for 2015-2016 and Newsletter 33
Notice of Annual General Meeting and Annual Address The 170th Annual General Meeting will be held in the Flett Lecture Theatre of the Natural History Museum, London SW7 5BD, on Wednesday, 19th April, 2017, at 4.00 pm. The Annual Report of Council will be presented, along with Income and Expenditure Accounts for the year ended 31st December, 2016, and Council Members and Officers will be elected for the ensuing year. Tea and coffee will be available from 3.30 pm. This meeting is open to all members of the Society. The AGM will be followed by the Society’s Eleventh Annual Lecture, to be given by Professor Jenny Clack (University of Cambridge). The event will be held in the Flett Lecture Theatre of the Natural History Museum, Cromwell Road, London, SW7 5BD, at 4.15 pm. This event is open to members of the Society and other interested parties. ------------------------------------------------------------------------------------------------------------------------- ------------------- NEWSLETTER 33 1 Publications: Volume 170 was published in November 2016. Vol. 170, 2016 (£280.00) 646. British Jurassic regular echinoids, Part 2, Carinacea, by A.B. Smith (pp. 69-176, plates 42-82, final part. £130.00). 647. Ichthyosaurs of the British Middle and Upper Jurassic, Part 1, Ophthalmosaurus, by B.J. Moon & A.M. Kirton (pp. 1-84, plates 1-30. £150.00). The Editors welcome suggestions for new titles and would also be grateful for manuscripts that represent concluding or additional parts of ongoing, unfinished monographs. 2 Subscriptions for 2017 were considered due on 1st January, 2017, and will entitle subscribers to Volume 171. Individual subscriptions are £35.00. -
App24-275.Pdf
ACT A PAL A EON T 0 LOG ICA POLONICA Vol. 24 1979 No.2 WANDA JESIONEK-SZYMANSKA MORPHOLOGY AND MICROSTRUCTURE OF OLIGOLAMELLAR TEETH IN PALEOZOIC ECHINOIDS PART 1. TEETH OF SOME EARLY LEPIDOCENTRID ECHINOIDS JESIONEK-SZYMANSKA, W. 1979. Morphology and microstructure of oligolamellar teeth in Paleozoic echinoids. Part 1. Teeth of some early lepidocentrid echinoids. Acta Palaeont. Polonica, 24, 2, 275-293, June 1979. The ollgolamellar, flat type of echinoid teeth in Kongtetechtnus magnitubercu tatus gen.n., sp.n. Is described. The teeth consist of few relatively large, thtck, roughly triangular lamellae. He-interpretation of the teeth structure of the oldest known echlnolds - Upper Ordovician Autechtnus and Ecttnechtnus Is pre sented. It is suggested that their teeth also belong to the flat, ollgolamellar type and have been hitherto wrongly assigned to the grooved type. A new lepidocentrid Kongtetechtnus magnttubercutatus gen.n., sp.n. from the Givetian (Middle Devo nian) of Poland Is described on the basis of isolated coronal plates, spines and Aristotle lantern elements. Key w 0 r d s: Devonian, echinoids, evolution, jaw apparatus, micro structure, taxonomy. Wanda Jesionek-Szymanska, Zaklad Paleobiologii, Polska Akademia Nauk, At 2wirki i Wigury 93, 02-089 Warszawa, Poland. Received: De cember 1978. INTRODUCTION In spite of the great importance of the echinoid teeth morphology in the classification of echinoids, the role of fossil material in this matter has been until now insignificant. This is particularly true of the Paleozoic echinoids which generally are assigned to the "grooved" type. The "serrate" type of teeth has also been reported from the Late Paleozoic deposits (Jackson 1912, Bindemann 1938) but without entering into details and interpretation of this structure.