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A combined morphometric and phylogenetic revision of the Late Ordovician brachiopod genera Eochonetes and Thaerodonta

  • Jennifer E. Bauer (a1) and Alycia L. Stigall (a2)
Abstract
Abstract

Systematic revision of the Late Ordovician brachiopod genera Eochonetes Reed, 1917 and Thaerodonta Wang, 1949 was conducted utilizing specimen-based morphometric and species-level phylogenetic analyses. Previous studies had recognized Thaerodonta and Eochonetes as either distinct taxonomic entities or synonyms. New multivariate and phylogenetic analyses confirm the synonymy of Thaerodonta with Eochonetes and provide a framework to assess evolutionary and ecological patterns within the clade. Multivariate analyses were employed to delineate species in morphospace and provided information on potential species relationships. Phylogenetic analysis was used to produce an evolutionary framework for taxonomic revision and identify character evolution within the clade. Most species previously assigned to Thaerodonta are transferred to Eochonetes, and three others are excluded from Eochonetes and provisionally referred to other sowerbyellid genera. Three new species (Eochonetes maearum new species, E. voldemortus new species, E. minerva new species) are described, one species (Leptaena saxea Sardeson, 1892) is synonymized with E. recedens Sardeson, 1892, and one subspecies (Thaerodonta mucronata scabra Howe, 1965) is rejected. This study demonstrates that a combination of complementary approaches and data types has the potential to advance interpretations beyond analyses confined to single analytical tools. Specifically, multivariate analyses provide constraints on species boundaries, whereas species-level phylogenetic analyses provide frameworks to examine morphological, ecological, and biogeographic evolution within a clade.

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Allmon W., and Yaccobucci M.M., 2016, Species in the Fossil Record: Chicago, University of Chicago Press (in press).
Amsden T.W., 1974, Late Ordovician and Early Silurian articulate brachiopods from Oklahoma, southwestern Illinois, and eastern Missouri: Oklahoma Geological Survey, Bulletin, v. 119, p. 1154.
Amsden T.W., and Miller A.K., 1942, Ordovician conodonts from the Bighorn Mountains of Wyoming: Journal of Paleontology, v. 16, p. 301306.
Archie J.W., 1985, Methods for coding variable morphological features for numerical taxonomic analysis: Systematic Zoology, v. 34, p. 326345.
Bassler R.S., 1932, The stratigraphy of the central basin of Tennessee: Division of Geology, State of Tennessee Bulletin, 38, 268 p., 49 pls.
Bauer J.E., and Stigall A.L., 2014, Phylogenetic paleobiogeography of Late Ordovician Laurentian brachiopods: Estonian Journal of Earth Sciences, v. 63, p. 189194.
Candela Y., 2002, Constraints on the age of the Bardahessiagh Formation, Pomeroy, County Tyrone: Scottish Journal of Geology, v. 38, p. 6567.
Candela Y., 2003, Late Ordovician brachiopods from the Bardahessiagh Formation of Pomeroy, Ireland: Palaeontographical Society Monograph, p. 195, pls. 1–12.
Cocks L.R.M., 1970, Silurian brachiopods of the superfamily Plectambonitacea: Bulletin of the British Museum Natural History, Geology, v. 19, p. 141203.
Cocks L.R.M., 2005, Strophomenate brachiopods from the Late Ordovician Boda Limestone of Sweden: Their systematic and implications for paleogeography: Journal of Systematic Palaeontology, v. 3, p. 243282.
Cocks L.R.M., 2013, Generic identities and relationships within the brachiopod family Sowerbyellidae: Palaeontology, v. 56, p. 167181.
Cocks L.R.M., and Rong J.-Y., 1989, Classification and review of the brachiopod superfamily Plectambonitacea: Bulletin British Museum Natural History (Geology), v. 45, p. 77163.
Cocks L.R.M., and Rong J.-Y., 2000, Strophomenida, in Kaesler, R.L., ed., Treatise on Invertebrate Paleontology, Pt. H, Brachiopoda (revised), Volume 2: Boulder, Colorado, Geological Society of America, and Lawrence, Kansas, University of Kansas Press, p. 216349.
Cocks L.R.M., and Torsvik T.H., 2011, The Palaeozoic geography of Laurentia and western Laurussia: A stable craton with mobile margins: Earth-Science Reviews, v. 106, p. 151.
Cohen K.M., Finney S.C., Gibbard P.L., and Fan J.X., 2014, International Chronostratigraphic Chart 2013: International Commission on Stratigraphy, http://www.stratigraphy.org/icschart/chronostratchart2013-01.pdf.
Cooper G.A., 1956, Chazyan and related brachiopods: Journal of Paleontology, v. 30, p. 521530.
Cracraft J., 2001, Avian evolution, Gondwana biogeography and the Cretaceous-Tertiary mass extinction event: Proceedings of the Royal Society of London B, v. 268, p. 459469.
Dewing K., 1999, Late Ordovician and Early Silurian strophomenid brachiopods of Anticosti Island, Québec, Canada: Palaeontographica Canadiana, v. 17, p. 1143.
Donovan S.K., Lewis D.N., and Harper D.A.T., 2002, Fossils explained 40: The Lady Burn Starfish Beds: Geology Today, v. 18, p. 151157.
Dunteman G.H., 1989, Principal components analysis: London, Sage, 96 p.
Etter W., 1999, Community analysis, in Harper, D.A.T., ed., Numerical Palaeobiology: Computer-Based Modeling and Analysis of Fossils and Their Distributions: Chichester, John Wiley & Sons, p. 287360.
Fischer de Waldheim. G., 1830, Oryctographie du Gouvernement de Moscou: Moscow, Russia, A. Semen, 202 p.
Foerste A.F., 1912, The Arnheim Formation within the areas traverse by the Cincinnati Geanticline: The Ohio Naturalist, v. 12, p. 429456.
Friis E.M., Pedersen K.P., and Crane P.R., 2010, Diversity in obscurity: Fossil flowers and the early history of angiosperms: Philosophical Transactions of the Royal Society B, v. 365, p. 369382.
Gao K., and Norell M.A., 1998, Taxonomic revision of Carusia (Reptilia: Squamata) from the Late Cretaceous of the Gobi Desert and phylogenetic relationships of anguimophan lizards: American Museum Novitates, v. 3230, p. 151.
Gauthier J., 1986, Saurischian monophyly and the origin of birds: Memoirs of the California Academy of Sciences, v. 8, p. 147.
Hammer Ø., Harper D.A.T., and Ryan P.D., 2001, PAST: Palaeontological Statistics software package for education and data analysis: Palaeontologia Electronica, v. 4, p. 19, http://palaeo-electronica.org/2001_1/past/issue1_01.htm.
Havliček V., 1967, Brachiopoda of the suborder Strophomenidina in Czechoslovakia: Rozpravy Ústredního Ústavu Geologického, v. 33, p. 1235.
Hillis D.M., and Huelsenbeck J.P., 1992, Signal, noise, and reliability in molecular phylogenetic analyses: The Journal of Heredity, v. 83, p. 189195.
Hopkins M.J., 2011, Species-level phylogenetic analysis of pterocephaliids (Trilobita, Cambrian) from the Great Basin, western USA: Journal of Paleontology, v. 85, p. 11281153.
Howe H.J., 1959, Montoya Group stratigraphy (Ordovician) of Trans-Pecos Texas: Bulletin of the American Association of Petroleum Geologists, v. 43, p. 22852332.
Howe H.J., 1965, Plectambonitacea, Strophomenacea, and Atrypacea from the Montoya Group (Ordovician) of Trans-Pecos Texas: Journal of Paleontology, v. 39, p. 647656.
Howe H. J., 1972, Morphology of the brachiopod genus Thaerodonta : Journal of Paleontology, v. 46, p. 440446.
Howe H.J., 1979, Middle and Late Ordovician plectambonitacean, rhynchoellacean, syntrophiacean, trimerellacean, and atrypacean brachiopods: U.S. Geological Survey Professional Paper 1066-C, p. 118.
Howe H.J., 1988, Articulate brachiopods from the Richmondian of Tennessee: Journal of Paleontology, v. 62, p. 204218.
Huelsenbeck J.P., and Ronquist F., 2001, MRBAYES: Bayesian inference of phylogenetic trees: Bioinformatics, v. 17, p. 754755.
Hunt G., 2007, Morphology, ontogeny, and phylogenetics of the genus Poseidonamicus (Ostracoda: Thaerocytherinae): Journal of Paleontology, v. 81, p. 607631.
Hurst J.M., 1975, The function of the brachial valve septa in plectambonitacean brachiopods: Lethaia, v. 8, p. 6367.
James F.C., and McCulloch C.E., 1990, Multivariate analysis in ecology and systematics: Panacea or Pandora’s Box?: Annual Review Ecology and Systematics, v. 21, p. 129166.
Jin J., and Zhan R.-B., 2001, Late Ordovician articulate brachiopods from the Red River and Stony Mountain formations, southern Manitoba, Ottawa, Canada, NRC Research Press, 117 p.
Jin J., Caldwell W.G.E., and Norford B.S., 1997, Late Ordovician brachiopods and biostratigraphy of the Hudson Bay Lowlands, northern Manitoba and Ontario: Geological Survey of Canada, Bulletin 513, 115 p.
Jones O.T., 1928, Plectambonites and some allied genera: Memoirs of the Geological Survey of Great Britain, Palaeontology, v. 1, p. 367527.
Klassen G.J., Mooi R.D., and Locke A., 1991, Consistency indices and random data: Systematic Zoology, v. 40, p. 446457.
Kolaczkowski B., and Thorton J.W., 2004, Performance of maximum parsimony and likelihood phylogenetics when evolution is heterogeneous: Nature, v. 431, p. 980984.
Kozlowski R., 1929, Les brachiopodes gothlandiens de la Podolie Polonaise: Palaeontologia Polonica, v. 1, 254 p.
Leighton L.R., and Maples C.G., 2002, Evaluating internal versus external characters: Phylogenetic analyses of Echinoconchidae, Bruxotoniinae, and Juresaniinae (phylum Brachiopoda): Journal of Paleontology, v. 76, p. 659671.
Lieberman B.S., 2000, Paleobiogeography: Using fossils to study global change, plate tectonics, and evolution: Topics in Geobiology, v. 16, p. 1208.
Macomber R.W., 1970, Articulate brachiopods from the Upper Bighorn Formation (Late Ordovician) of Wyoming: Journal of Paleontology, v. 44, p. 416450.
Maddison W.P., and Maddison D.R., 2003, MacClade: Analysis of Phylogeny and Character Evolution, 4.06: Sunderland, Massachusetts, Sinauer, 503 p.
Meek F.B., 1873, Section I, Descriptions of invertebrate fossils of the Silurian and Devonian systems: Ohio Geological Survey, Palaeontology, v. 1, p. 1243.
Mickevich M.F., and Johnson M.S., 1976, Congruence between morphological and allozyme data in evolutionary inference and character evolution: Systematic Biology, v. 25, p. 260270.
Mitchell W.I., 1977, The Ordovician Brachiopoda from Pomeroy, Co. Tyrone: Palaeontographical Society Monographs, v. 130, p. 1138.
Morton C.M., and Kincaid D.T., 1995, A model for coding pollen size in reference to phylogeny using examples from the Ebenaceae: American Journal of Botany, v. 82, p. 11731178.
Muir-Wood H., and Williams A., 1965, Strophomenida, in Moore, R.C., ed., Treatise on Invertebrate Paleontology, Pt. H, Brachiopoda, Volume 1, Boulder, Colorado, Geological Society of America, and Lawrence, Kansas, University of Kansas Press, p. 360521.
Novacek M.J., 1992, Fossils, topologies, missing data, and the higher level phylogeny of eutherian mammals: Systematic Biology, v. 41, p. 5873.
Öpik A.A., 1930, Brachiopoda Protremata der Estlӓndischen Ordovizischen Kukruse-Stufe: Universitatis Tartuensis (Dorpatensis) Acta et Commentationes (series A), v. 1, p. 1252.
Pol D., and Siddall M.E., 2001, Biases in maximum likelihood and parsimony: A simulation approach to a 10-taxon case: Cladistics, v. 17, p. 266281.
Pope M.C., 2004, Cherty carbonate facies of the Montoya Group, southern New Mexico and western Texas and its regional correlatives: A record of Late Ordovician paleoceanography on southern Laurentia: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 210, p. 367384.
Popov L.E., Cocks L.R.M., and Nikitin I.F., 2002, Upper Ordovician brachiopods from the Anderken Formation, Kazakhstan: Their ecology and systematics: Bulletin of the Natural History Museum, London (Geology), v. 58, p. 1379.
Racheboeuf P.R., 2000, Chonetidina, in Moore, R.C., and Kaesler, R.L. eds., Treatise on Invertebrate Paleontology, Pt. H, Brachiopoda (revised), Volume 2: Boulder, Colorado, Geological Society of America, and Lawrence, Kansas, University of Kansas Press, p. 392395.
Reed F.R.C., 1917, The Ordovician and Silurian Brachiopoda of the Girvan District: Transactions of the Royal Society of Edinburgh, v. 51, p. 795998.
Rindal E., and Brower A.V.Z., 2011, Do model-based phylogenetic analyses perform better than parsimony? A test with empirical data: Cladistics, v. 27, p. 331334.
Rõõmusoks A., 1981, Ordovician and Silurian Strophomenida of Estonia, III: Eesti NSV Teaduste Akadeemia Toimetised, Geoloogia, v. 30, p. 6171.
Ross R.J., 1957, Ordovician fossils from wells in the Williston Basin eastern Montana: Geological Survey Bulletin 1021-M, p. 439507.
Ross R.J., 1959, Brachiopod fauna of Saturday Mountain Formation Southern Lemhi Range Idaho: U.S. Geological Survey Professional Paper 294-L, p. 441461.
Rudwick M.J.S., 1970, Fossil and Living Brachiopods: London, Humanities Press, 199 p.
Sardeson F.W., 1892, The range and distribution of the Lower Silurian faunas of Minnesota with descriptions of some new species: Bulletin of the Minnesota Academy of Natural Sciences, v. 3, p. 326343.
SAS Institute, 2009, JMP®8 User Guide, 2nd ed: Cary, North Carolina, SAS Institute, 513 p.
Savage T.E., 1913, Stratigraphy and paleontology of the Alexandrian Series in Illinois and Missouri: Urbana, Illinois, Illinois State Geological Survey, 144 p.
Sloan R.E., 2005, Minnesota Fossils and Fossiliferous Rocks: Winona, Minnesota, Robert E. Sloan, 218 p.
Sohrabi A., and Jin J., 2013, Evolution of the Rhynchotrema-Hiscobeccus lineage: Implications for the diversification of the Late Ordovician epicontinental brachiopod fauna of Laurentia: Lethaia, v. 46, p. 188210.
Sowerby J., 1839, Shells of the Lower Silurian rocks, in Murchison, R.E., ed., The Silurian System, v. 2: London, John Murray, p. 634644.
Spencer M.R., and Wilberg E.W., 2013, Efficacy or convenience? Model-based approaches to phylogeny estimation using morphological data: Cladistics, v. 29, p. 663671.
Sproat C.D., and Jin J., 2013, Evolution of the Late Ordovician plaesiomyid brachiopod lineage in Laurentia: Canadian Journal of Earth Sciences, v. 50, p. 872894.
Stigall Rode A.L., 2005, Systematic revision of the Devonian brachiopods Schizophoria (Schizophoria) and “Schuchertella” from North America: Journal of Systematic Palaeontology, v. 3, p. 133167.
Swiderski D.L., Zelditch M.L., and Fink W.L., 1998, Why morphometrics is not special: Coding quantitative data for phylogenetic analysis: Systematic Biology, v. 47, p. 508519.
Swofford D.L., 2002, PAUP*. Phylogenetic Analysis Using Parsimony (*and Other Methods): Sunderland, Massachusetts, Sinauer Associates, http://paup.sc.fsu.edu.
Thiele K., 1993, The holy grail of the perfect character: The cladistics treatment of morphometric data: Cladistics, v. 9, p. 275304.
Thomsen E., Jin J., and Harper D.A.T., 2006, Early Silurian brachiopods (Rhynchonellata) from the Sælabonn Formation of the Ringerike district, Norway: Bulletin of the Geological Society of Denmark, v. 53, p. 111126.
Torsvik T.H., and Cocks L.R.M., 2013, New global palaeogeographical reconstructions for the early Palaeozoic and their generation, in Harper, D.A.T., and Servais, T., eds., Early Palaeozoic Biogeography and Palaeogeography: Geological Society, London, Memoirs, v. 38, p. 524.
Wang Y., 1949, Maquoketa Brachiopoda of Iowa: The Geological Society of America, Memoir 42, p. 155.
White T.D., Asfaw B., Degusta D., Gilbert H., Richards G.D., Suwa G., and Howell F.C., 2003, Pleistocene Homo sapiens from Middle Awash, Ethiopia. Nature: v. 423, p. 742747.
Wiens J.J., 1998, Does adding characters with missing data increase or decrease phylogenetic accuracy?: Systematic Biology, v. 47, p. 625640.
Wiens J.J., 2003, Missing data, incomplete taxa, and phylogenetic accuracy: Systematic Biology, v. 52, p. 528538.
Wiens J.J., 2006, Missing data and the design of phylogenetic analysis: Journal of Biomedical Informatics, v. 36, p. 3442.
Wiley E.O., and Lieberman B.S., 2011, Phylogenetics: Theory and Practice of Phylogenetic Systematics, 2nd ed.: Hoboken, New Jersey, John Wiley & Sons, 432 p.
Wilkinson M., and Benton M.J., 1995, Missing data and rhynchosaur phylogeny: History of Biology, v. 10, p. 137150.
Wright A.M., and Hillis D.M., 2014, Bayesian analysis using a simple likelihood model outperforms parsimony for estimation of phylogeny from discrete morphological data: PLOS ONE, v. 9, doi:10.1371/journal.pone.0109210.
Wright D.F., and Stigall A.L., 2013, Phylogenetic revision of the Late Ordovician orthid brachiopod genera Plaesiomys and Hebertella from Laurentia: Journal of Paleontology, v. 87, p. 11071128.
Wright D.F., and Stigall A.L., 2014, Species-level phylogenetic revision of the Ordovician orthide brachiopod Glyptorthis from North America: Journal of Systematic Palaeontology, v. 12, doi:10.1080/14772019.2013.839584.
Xu X., and Pol D., 2014, Archaeopteryx, paravian phylogenetic analyses, and the use of probability-based methods for palaeontological datasets: Journal of Systematic Palaeontology, v. 12, p. 323334.
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