Intraspecific variability in paradoxidid trilobites from the Purujosa trilobite assemblage (middle Cambrian, northeast Spain)

• Autorzy: Esteve J.
• Języki publikacji: EN

Abstrakty

EN

Eccaparadoxides? pradoanus and Eccaparadoxides mediterraneus are both widespread trilobite species described from the middle Cambrian of the Mediterranean region. Analysis based on a pooled sample of 500 specimens demonstrates that many of the characters that have been used to define these species show continuous variations, some of which are related to ontogeny. In addition, morphometric analyses of metric characters show that the two species cannot be distinguished on the basis of these characters either. Many of the characters studied herein are widely used in definitions and descriptions of other paradoxidid species, which suggests that the taxonomic classification of other paradoxidids may be oversplit.

• Wydawca: -
• Czasopismo: Acta Palaeontologica Polonica
• Rocznik: 2014
• Tom: 59
• Numer: 1
• Opis fizyczny: p.215-240,fig.,ref.

Twórcy

autor

Esteve J.

• Area de Paleontologia, Departamento de Ciencias de la Tierra, Universidad de Zaragoza, Pedro Cerbuna 12, E-50009 Zaragoza, Spain
• University of West Bohemia, Center of Biology, Geosciences and Environment, Klatovska, 51.306 14 Pilsen, Czech Republic

Bibliografia

• Abràmoff, M.D., Magalhães, P.J., and Ram, S.J. 2004. Image processing with ImageJ. Biophotonics International 11: 36–42.
• Álvaro, J.J. 1995. Propuesta de una nueva unidad litoestratigráfica para el Cámbrico Medio-Superior de las Cadenas Ibéricas (NE España): El Grupo Acón. Boletín de la Real Sociedad Española de Historia Natural (Sección Geológica) 90: 95–106.
• Álvaro, J.J. and Vizcaïno, D. 1998. Revision biostratigraphique du Cambrien moyen du versant méridional de la Montagne Noire (Languedoc, France). Bulletin de la Société Géologique de France 169: 233–242.
• Barrande, J. 1846. Notice préliminaire sur le systême silurien et les trilobites de Bohême. vi + 96 pp. Hirschfeld, Leipzig.
• Barrois, C. 1882. Recherches sur les terrains anciens des Asturies et de la Galice. Mémoires de la Société géologique du Nord 2: 1–630.
• Bergeron, J. 1889. Étude géologique du massif ancien situé au sud du Plateau Central. Annales des Sciences géologiques (Thèse Faculté des Sciences Paris) 22: 1–362.
• Bergström, J. and Levi-Setti, R. 1978. Phenotypic variation in the Middle Cambrian trilobite Paradoxides davidis Salter at Manuels, SE Newfoundland. Geologica et Palaeontologica 12: 1–40.
• Boeck, C. 1827. Notiser til Laeren om trilobiterne. Magazin for Naturvidenskaberne 8: 11–44.
• Courtessole, R. 1967. Une nouvelle espèce de Conocyphe «oculé» dans le Cambrien moyen du Nord-Leon. Bulletin de la Société Sciences Naturelle de Toulouse 103: 491–526.
• Courtessole, R. 1973. Le Cambrien Moyen de la Montagne Noire. Biostratigraphie. 248 pp. Imprimérie d’Oc, Toulouse.
• Courtessole, R., Pillet, J., and Vizcaïno, D. 1988. Stratigraphie et paléontologie du Cambrien moyen gréseux de la Montagne Noire (versant méridional). Mémoire de la Société d’Etudes Scientifiques de l’Aude 1988: 1–63.
• Dawson, J.W. 1868. Acadian Geology: The geological structure, organic remains, and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. 2nd Edition, 694 pp. Macmillan, London.
• Dean, W.T. and Rushton, A.W.A. 1997. Subfamily Paradoxidoidea. In: R.L. Kaesler (ed.), Treatise on Invertebrate Paleontology, Part O, Revised. Arthropoda 1, Trilobita 1 (revised), 470–481. Geological Society of America-University of Kansas, Boulder-Lawrence.
• Dies Álvarez, M.E., Rushton, A.W.A., Gozalo, R., Pillola, G.L., Liñán, E., and Ahlberg, P. 2010. Paradoxides brachyrhachis Linnarsson, 1883 versus Paradoxides mediterraneus Pompeckj, 1901: a problematic determination. GFF 132: 95–104.
• Droser, M.L. and Bottjer, D.J. 1986. A semiquantitative field classification of ichnofabric. Journal of Sedimentary Petrology 56: 558–559.
• Esteve, J., Hughes, N.C., and Zamora, S. 2011. The Purujosa trilobite assemblage and the evolution of trilobite enrollment. Geology 39: 575–578.
• Esteve, J., Sundberg, F., Zamora, S., and Gozalo, R. 2012. A new Alokistocaridae Resser, 1939 (Trilobita) from the middle Cambrian of Spain. Geobios 45: 275–283.
• Esteve, J., Zamora, S., Gozalo, R., and Liñán, E. 2010. Sphaeroidal enrolment in middle Cambrian solenopleoropsine trilobites. Lethaia 43: 478–493.
• Fatka, O., Kordule, V., and Szabad, M. 2004. Stratigraphic distribution of Cambrian fossils in the Příbram-Jince Basin (Barrandian area, Czech Republic). Senckenbergiana lethaea 84: 369–384.
• Feist, R. and Lerosey-Aubril, R. 2005. The type species of Cyrtosymbole and the oldest (Famennian) cyrtosymboline trilobite. Acta Palaeontologica Polonica 50: 465–475.
• Fusco, G., Hughes, N.C., Webster, M., and Minelli, A. 2004. Exploring developmental modes in a fossil arthropod: growth and trunk segmentation of the trilobite Aulacopleura konincki. American Naturalist 163: 167–183.
• Geyer, G. 1990. Die marokkanischen Ellipsocephalidae (Trilobita: Redlichiida). Beringeria 3: 1–363.
• Geyer, G. 1998. Intercontinental, trilobite-based correlation of the Moroccan early Middle Cambrian. Canadian Journal of Earth Sciences 35: 374–401.
• Geyer, G. and Landing, E. 2001. Middle Cambrian of Avalonian Massachusetts: Stratigraphy and correlation of the Braintree trilobites. Journal of Paleontology 75: 116–135.
• Gil-Cid, M.D. 1970. Nota sobre los nuevos yacimientos de Trilobites del Cám brico medio de Murero (Zaragoza). Estudios Geológicos 26: 163–172.
• Gil-Cid, M.D. 1982. Hallazgo de Paradoxides (Eccaparadoxides) bra chyrhachis Linnarsson 1883, en el Cámbrico Medio de Zafra (Badajoz). Boletín Geológico y Minero 93: 10–14.
• Gozalo, R. and Liñán, E. 1988. Los materiales hercínicos de la Cordillera Ibérica en el contexto del Macizo Ibérico. Estudios geológicos 44: 399–404.
• Gozalo, R., Liñán, E., and Dies Álvarez, M.E. 2003. Intraspecific dimorphism in an evolutionary series of paradoxidids from the Middle Cambrian of Murero, Spain. Special Papers in Palaeontology 70: 141–156.
• Gozalo, R., Liñán, E., Gámez-Vintaned, J.A., Dies Álvarez, M.E., Chirivella Martorell, J.B., Zamora, S., Esteve, J., and Mayoral, E. 2008. The Cambrian of the Cadenas Ibéricas (NE Spain) and its trilobites. In: I. Rábano, R. Gozalo, and D. García-Bellido (eds.), Advances in Trilobite Research: Fourth International Trilobite Conference. Cuadernos del Museo Geominero 9: 137–151.
• Hammer, Ø., Harper, D.A.T., and Ryan, P.D. 2001. PAST: Palaeontological Statistics software package for education and data analysis. Palaeontologia Electronica 4: 1–9.
• Hawle, I. and Corda, A.J.C. 1847. Prodrom einer Monographie der böhmischen Trilobiten. Abhandlungen der königlichen böhmischen Gesellschaft der Wissenschaften 5: 119–292.
• Hughes, N.C. 1994. Ontogeny, intraspecific variation, and systematics of the Late Cambrian trilobite Dikelocephalus. Smithsonian Contributions to Paleobiology 79: 1–89.
• Hughes, N.C. 1999. Statistical and imaging methods applied to deformed fossils. In: D.A.T. Harper (ed.), Numerical Palaeobiology, 127–155. John Wiley, London.
• Hughes, N.C. and Chapman, R.E. 1995. Growth and variation in the Silurian proetide trilobite Aulacopleura konincki and its implications for trilobite palaeobiology. Lethaia 28: 333–353.
• Hughes, N.C. and Jell, P. 1992. A statistical/computer-graphic technique for assessing variation in tectonically deformed fossils and its application to Cambrian trilobites from Kashmir. Lethaia 25: 317–330.
• Hughes, N.C. and Labandeira, C.C. 1995. The stability of species in taxonomy. Paleobiology 24: 401–403.
• Josopait, V. 1972. Das Kambrium und das Tremadoc von Ateca (Westliche Iberische Kettern, NE-Spanien). Munsterche Forschungen zur Geologie und Paläentologie 23: 1–121.
• Kim, D.H., Westrop, S.R., and Landing, E. 2002. Middle Cambrian (Acadian Series), Conocoryphe and paradoxidid trilobites from the upper Chamberlain’s Brook Formation, Newfoundland and New Brunswick. Journal of Paleontology 76: 822–842.
• Kordule, V. 1999. New data about paradoxid trilobites from Middle Cambrian of Central Bohemia. Bulletin of Czech Geological Survey 74: 17–26.
• Landing, E. and Westrop, S.R. 1996. Upper Lower Cambrian depositional sequence in Avalonian New Brunswick. Canadian Journal of Earth Sciences 33: 404–417.
• Liñán-Guijarro, E. 1978. Bioestratigrafía de la Sierra de Córdoba. Tesis doctorales de la Universidad de Granada 191: 1–212.
• Liñán, E. and Gozalo, R. 1986. Trilobites del Cámbrico inferior y medio de Murero (Cordillera Ibérica). Memorias del Museo Paleontologico de la Universidad de Zaragoza 2: 7–104.
• Liñán, E., Perejón, A., and Sdzuy, K. 1993. The Lower–Middle Cambrian stages and stratotypes from the Iberian Peninsula: a revision. Geological Magazine 130: 817–833.
• Liñán, E., Gozalo, R., Dies Álvarez, M.E., Gámez Vintaned, J.A., Mayoral, E., Chirivella Martorell, J.B., Esteve, J., Zamora, S., Zhuravlev, A.Yu., and Andrés, J.A. 2008. Lower and Middle Cambrian trilobites of select ed localities in Cadenas Ibéricas (NE, Spain). Fourth International Trilobite Conference, Trilo 08. Toledo, Spain, 2008. Post- Conference Field Trip. 52 pp. Universidad de Zaragoza, Zaragoza.
• Lotze, F. 1958. Zur Stratigraphie des spanischen Kambriums. Geologie 7: 727–750.
• Matthew, G.F. 1883. Illustrations of the fauna of the St. John Group. No. 1. The Paradoxides. Transactions of the Royal Society of Canada 2: 271–279.
• McNamara, K.J. 1986. The role of heterochrony in the evolution of Cambrian trilobites. Biological Reviews 61: 121–156.
• Miquel, J. 1905. Essai sur le Cambrien de la Montagne Noire. Coulouma. L’Acadien. Bulletin de la Société géologique de France 5: 465–483.
• Nixon, K.C. and Wheeler, Q.D. 1990. An amplification of the phylogenetic species concept. Cladistics 6: 211–223.
• Owen, D.D. 1852. Report of the Geological Survey of Wisconsin, Iowa, and Minnesota. 638 pp. Lippencott, Grambo and Co., Philadelphia.
• Palmer, A.R. 1957. Ontogenetic development of two olenellid trilobites. Journal of Paleontology 31: 105–128.
• Palmer, A.R. 1998. Terminal Early Cambrian extinction of the Olenellina: Documentation from the Pioche Formation, Nevada. Journal of Paleontology 72: 650–672.
• Park, T. and Choi, D.K. 2009. Post-embryonic development of Furongian (late Cambrian) trilobite Tsinania canens: implication for life mode and phylogeny. Evolution and Development 11: 441–455.
• Pillola, G.L., Leone, F., and Loi, A. 2002. The type-section of the Iglesias Group (SW Sardinia, Italy). Rendiconti della Società Paleontologica Italiana 1: 217–221.
• Pompeckj, J.F. 1901. Versteinerungen der Paradoxides-Stufe von La Cabitza in Sardinien und Bemerkungen zur Gliederung des sardischen Cambrium. Zeitschrift der deutschen geologischen Gesellschaft 53: 1–23.
• Prado, M.C., Verneuil, E., and Barrande, J. 1860. Sur l’existence de la faune primordial dans la Chaîne Cantabrique. Bulletin de la Société Géologique de France, série 2éme 17: 516–542.
• Rasetti, F. 1948. Lower Cambrian trilobites from the conglomerates of Quebec (exclusive of the Ptychopariidae). Journal of Paleontology 22: 1–24.
• Richter, R. 1932. Crustacea (Paläontologie). In: R. Dittler, G. Joos, E. Korschelt, G. Linek, F. Oltmanns, and K. Schaum (eds.), Handwörterbuch der Naturwissenschaften, 840–846. Gustav Fischer, Jena.
• Rushton, A.W.A. 2006. Revision of Middle Cambrian trilobite Paradoxides jemtlandicus. Geological Magazine 143: 771–776.
• Sampelayo, P.H. 1935. El Sistema Cambriano. Memorias del Instituto Geológico y Minero de España. Explicación del Nuevo Mapa Geológico de España 1: 291–528.
• Salter, J.W. 1863. On the discovery of Paradoxides in Britain. Quarterly Journal of the Geological Society of London 19: 274–277.
• Sdzuy, K. 1958. Neue Trilobiten aus dem Mittelkambrium von Spanien. Senckenbergiana lethaea 39: 235–253.
• Sdzuy, K. 1961. Neue Funde aus den Leimitz-Schiefern (Tremadoc). Sencken bergiana Lethaea 42: 227–243.
• Sdzuy, K. 1968. Trilobites del Cámbrico Medio de Asturias. Trabajos de Geologia, Facultad de Ciencias, Universidad de Oviedo (año 1967) 1: 77–133.
• Šnajdr, M. 1957. O nových trilobitech z českého kambria. Vestnik Ústŕedního ústavu geologického 32: 235–244.
• Šnajdr, M. 1958. Trilobiti Ceského Stredního Kambria. Rozpravy Ústŕedního ústavu geologického 24: 1–280.
• Šnajdr, M. 1986. Two new paradoxidid trilobites from the Jince Formation (Middle Cambrian, Czechoslovakia). Vestnik Ústŕedního ústavu geologického 61: 169–174.
• Sundberg, F.A. 1996. Morphological diversification of Ptychopariida (Trilobita) from the marjumiid biomere (Middle and Upper Cambrian). Paleobiology 22: 49–65.
• Thoral, M. 1947. Trois nouveaux genres de trilobites acadiens du Languedoc et de l’Espagne. Comptes Rendus des Séances de l’Académie de Sciences 244: 59–60.
• Walch, J.E.I. 1771. Die Naturgeschichte der versteinerungen zur erläuterung der Knorrischen Sammlung von Merkwürdigkeiten der Natur. Dritter Theil. 235 pp. Felßecker, Nürnberg.
• Webster, M. 2007. A Cambrian peak in morphological variation within trilobite species. Science 317: 499–502.
• Westergård, A.H. 1936. Paradoxides oelandicus Beds of Öland. Sveriges Geologiska Undersökning, Avhandlingar Ser. C 394: 1–66.
• Wiley, E.O. 1978. The evolutionary species concept reconsidered. Systematic Zoologist 27: 17–26.
• Zamora, S. 2010. Middle Cambrian echinoderms from North Spain show echinoderms diversified earlier in Gondwana. Geology 38: 507–510.
• Zamora, S. and Esteve, J. 2010. The middle Cambrian Purujosa assemblage (NE Spain): Palaeobiological implications for a new Fossil-Lagertätten. In: O. Fatka and P. Budil (eds.), The 15th Field Conference of the Cambrian Stage Subdivision Working Group International Subcommission on Cambrian Stratigraphy, 31. Czech Geological Survey and Charles University, Prague.
• Zamora, S. and Smith, A.B. 2010. The oldest isorophid edrioasteroid (Echi no dermata) and the evolution of attachment strategies in Cambrian edrio asteroids. Acta Palaeontologica Polonica 55: 487–494.
• Zamora, S. and Smith, A.B. 2012. Cambrian stalked echinoderms show unexpected plasticity of arm construction. Proceedings of The Royal Society B 279: 293–298.