Hostname: page-component-848d4c4894-xm8r8 Total loading time: 0 Render date: 2024-06-26T01:28:50.208Z Has data issue: false hasContentIssue false
  • English
  • Français

A radical, novel design for a free-living bryozoan colony: Biselenaria placentula (Reuss, 1867)

Published online by Cambridge University Press:  16 June 2020

Eckart Håkansson Open the ORCID record for Eckart Håkansson [Opens in a new window]  and
Kamil Zágoršek Open the ORCID record for Kamil Zágoršek [Opens in a new window]
Eckart Håkansson
Affiliation:
The University of Western Australia, School of Earth Sciences, CEG, 35 Stirling Highway, WA6009, Australia
Kamil Zágoršek
Affiliation:
Department of Geography, Technical University of Liberec, Studentská 2, CZ-461 17 Liberec, Czech Republic
Get access Rights & Permissions [Opens in a new window]

Abstract

A series of well-preserved specimens of the little-known Palaeogene species Biselenaria placentula (Reuss, 1867) warrant the designation of a new family of free-living cheilostome bryozoans, Biselenariidae n. fam. In contrast to the structural organization of all other free-living, lunulitiform cheilostomes, all zooids are enclosed almost completely by cuticular, exterior walls. Yet, like other lunulitiforms, the colony must be regarded as a highly integrated functional unit, as revealed through the unique, highly complex interior architecture. In creating the new monotypic family, the type species Biselenaria placentula is described in detail, while the ambiguous taxonomic status of the only other taxon, B. offa Gregory, 1893, is discussed.

UUID: http://zoobank.org/6ad8a795-c45e-4619-b2bb-46916585fbd9

Type
Articles
Information
Journal of Paleontology , Volume 94 , Issue 6 , November 2020 , pp. 1059 - 1075
Check for updates
Copyright
Copyright © 2020, The Paleontological Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aguilera, O., and Páes, E.T., 2012, The Pirabas Formation (Early Miocene from Brazil) and the tropical Western Central Atlantic subprovince: Boletim do Museu Paraense Emílio Goeldi, Ciências Naturais, v. 7, p. 29–45.Google Scholar
Barbosa, M.M, 1967, Briozoários fósseis da Bacia Amazônica. I: Atas do Simpósio sôbre a Biota Amazônica, 1 (Geosciênsias), p. 75–82.Google Scholar
Bassler, R.S., 1953, Bryozoa, in Moore, R.C., ed., Treatise of Invertebrate Paleontology, Part G: Bryozoa: Lawrence KS, Geological Society of America and University of Kansas Press, 253 p.Google Scholar
Boardman, R.S., and Cheetham, A.H., 1969, Skeletal growth, intracolony variation, and evolution in Bryozoa: Journal of Paleontology, v. 43, p. 205–233.Google Scholar
Boardman, R.S., and Cheetham, A.H., 1973, Degrees of colony dominance in stenolaemate and gymnolaemate Bryozoa, in Boardman, R.S., Cheetham, A.H., and Oliver, W.A., eds., Animal Colonies, Development and Function Through Time: Stroudsburg, PA, Dowden, Hutchinson & Ross, p. 121–220.Google Scholar
Boardman, R.S., Cheetham, A.H., and Cook, P.L., 1970, Intracolony variation and the genus concept in Bryozoa: North American Paleontological Convention, Chicago, 1969, Proceedings, v. 1C, p. 294–320.Google Scholar
Busk, G., 1852, Catalogue of Marine Polyzoa in the Collection of the British Museum: I. Cheilostomata: London, Taylor and Francis, 62 p.Google Scholar
Calvet, L., 1906, Note préliminaire sur les Bryozoaires recueillis par les expéditions du Travailleur (1881–1882) et du Talisman (1883): Bulletin du Muséum d'Histoire naturelle, v. 12, p. 154–166.Google Scholar
Calvet, L., 1907, Bryozoaires, in Milne-Edwards, A., and Perrier, E., eds., Expeditions Scientifiques du “Travailleur” et du “Talisman” pendant les années 1880, 1881, 1882, 1883: Paris, Masson et Cie, p. 335–495.Google Scholar
Canu, F., 1907, Les Bryozoaires des terrains tertiaries des environs de Paris, I: Annales de Paléontologie, Paris, v. 2, p. 57–88, 137–160.Google Scholar
Canu, F., 1926, Bryozoaires bartoniens du Bassin Franco-Belge: Bulletin de Societé géolgique de la France, v. 25, p. 741–761.Google Scholar
Canu, F., and Bassler, R.S., 1917, A synopsis of American Early Tertiary Cheilostome Bryozoa: Smithsonian Institution, USNM Bulletin v. 96, 87 p.CrossRefGoogle Scholar
Canu, F., and Bassler, R.S., 1920, North American Early Tertiary Bryozoa: Smithsonian Institution, USNM Bulletin, v. 106, 879 p.CrossRefGoogle Scholar
Canu, F., and Bassler, R.S., 1929, Bryozoaires Éocènes de la Belgique: Mémoires du Musée Royal d'Histoire naturelle de Belgique, Mémoire 39, 68 p.Google Scholar
Cheetham, A.H., 1966, Cheilostomatous Polyzoa from the Upper Bracklesham Beds (Eocene) of Sussex: Bulletin of the British Museum (Natural History), v. 13, 118 p.Google Scholar
Cheetham, A.H., and Cook, P.L., 1983, General features of the Class Gymnolaemata, in Robison, R.A., ed., Treatise on Invertebrate Paleontology. Part G: Bryozoa: Lawrence, Kansas, University of Kansas Press, v. 1, p. G138–G207.Google Scholar
Dartevelle, E., 1933, Contribution a l’étude des Bryozoaires fossils de l’Éocene de la Belgique: Société Royale Zoologique de Belgique, Annales, v. 63, p. 55–116.Google Scholar
Di Martini, E., and Taylor, P.D., 2018, Early Pleistocene and Holocene bryozoans from Indonesia: Zootaxa, 2018 May 14;4419(1):1–70. doi: 10.11646/zootaxa.4419.1.1.CrossRefGoogle Scholar
Di Martini, E., Taylor, P.D., Fernando, A.G.S., Kase, T., and Yasuhara, M., 2019, First bryozoan fauna from the middle Miocene of Central Java, Indonesia: Alcheringa, v. 43, p. 461–478.CrossRefGoogle Scholar
Ehrenberg, C.G., 1831, Anemalia evertebrata: Symbolae Physicae, seu Icones et descriptions Corporum Naturalium novorum aut minus cognitorum, quae ex itineribus per Lyibyam, Aegyptum, Nubiam, Dongalam, Syriam, Arabiam et Habessiniam, Pars Zoologica, v. 4: Berlin, Abhandlungen der deutschen Akademie der Wissenschaften, unpaginated.Google Scholar
Gregory, J.W., 1893, On the British Palaeogene Bryozoa: Transactions of the Zoological Society, London, v. 13, p. 219–279.CrossRefGoogle Scholar
Håkansson, E., 1973, Mode of growth of the Cupuladriidae (Bryozoa, Cheilostomata), in Larwood, G.P., ed., Living and Fossil Bryozoa: London, Academic Press, p. 287–298.Google Scholar
Håkansson, E., 1976, Population structure of colonial organisms. A palaeoecological study of some free-living Cretaceous bryozoans: Documents des Laboratoires de Géologie de la Faculté des Scienses de Lyon, Hors Série 3/2, p. 385–399.Google Scholar
Håkansson, E., and Voigt, E., 1996, New free-living bryozoans from the northwest European chalk: Bulletin of the Geological Society of Denmark, v. 42, p. 187–207.Google Scholar
Håkansson, E., and Winston, J.E., 1985, Interstitial bryozoans: unexpected life forms in a high energy environment, in Nielsen, C., and Larwood, G.P., eds., Bryozoa: Ordovician to Recent: Fredensborg, Denmark, Olsen & Olsen, p. 125–134.Google Scholar
Harmer, S.F. 1926, The Polyzoa of the Siboga expedition, Part 2. Cheilostomata, Anasca: Siboga-Expeditie, Uitkomsten op zoologisch, botanisch, oceanographisch en geologisch gebied, v. 28b, p. 181–501.Google Scholar
Lidgard, S., 1985, Zooid and colony growth in encrusting cheilostoma bryozoans: Paleontology, v. 28, p. 255–291.Google Scholar
Lidgard, S., Carter, M.C., Dick, M.H., Gordon, D.P., and Ostrovsky, A.N., 2012, Division of labor and recurrent evolution of polymorphism in a group of colonial animals: Evolutionary Ecology, v. 26, p. 233–257.CrossRefGoogle Scholar
Lonsdale, W., 1850, Notes on the species, in Dixon, F., The Geology and Fossils of the Tertiary and Cretaceous Formations of Sussex: London, Longman, Brown, Green and Longmans, p. 125–161.Google Scholar
Mukai, H., Terakado, K., and Reed, C.G., 1997, Bryozoa, in Harrison, F.W., and Wollacot, R.M., eds., Microscopic Anatomy of Invertebrates, Lophophorates, Entoprocta and Cycliophora: New York, Wiley-Liss, v. 13, p. 45–206.Google Scholar
Müller, A., 2011, Paleogene of the Leipzig Embayment: Leipzig, Field Guide Excursion 1, GV and Sediment Meeting, p. 1–18.Google Scholar
Müller, A., Leder, R.M., Henninger, M., and Bach, F., 2013, Die Silberberg-Formation im Profil von Atzendorf bei Stassfurt (Egelner Nordmulde, Sachsen-Anhalt, Deutschland): Hallesches Jahrbuch Geowissenschaften, v. 35, p. 73–133.Google Scholar
Norman, A.M., 1903, Notes on the Natural History of East Finmark, Polyzoa: Annals and Magazine of Natural History, v. 11, p. 567–598.CrossRefGoogle Scholar
O'Dea, A., 2009, Relation of form to life habit in free-living cupuladriid bryozoans: Aquatic Biology, v. 7, p. 1–18.CrossRefGoogle Scholar
Reed, C.C., 1991, Bryozoa, in Giese, A.C., Pearse, J.S., and Pearse, V.B., eds., Reproduction of Marine Invertebrates: Pacific Grove CA, The Boxwood Press, p. 85–245Google Scholar
Reuss, A.E., 1867, Über einige Bryozoen aus dem deutschen Unteroligocäns: Sitzungsberichte der Koenigliche Akademie der Wissenschaften in Wien, v. 55, p. 216–234.Google Scholar
Richardson, J., 1837, Fauna Boreali-Americana; or the Zoology of the Northern Parts of British America: Containing Descriptions of the Objects of Natural History Collected on the Late Northern Land Expeditions, under Command of Captain Sir John Franklin, R.N.: London, John Murray, v. 4, 377 p.Google Scholar
Rosso, A., 2008, Mediterranean setoselliniforms and their exploitation of small sized substrata, in Hageman, S.J., Key, M.M., Jr., and Winston, J.E., eds., Bryozoan Studies 2007: Proceedings of the 14th International Bryozoology Association Conference, Boone, North Carolina, July 1–8, 2007: Martinsville, Virginia, Virginia Museum of Natural History, p. 261–268.Google Scholar
Sandberg, P.A., 1977, Ultrastructure, mineralogy, and development of bryozoan skeletons, in Wollacott, R.M., and Zimmert, R.L., eds., Biology of Bryozoans: New York, Academic Press, p. 143–181.CrossRefGoogle Scholar
Taylor, P.D., James, N.P., Bone, Y., Kuklinsky, P., and Kyser, K., 2009, Evolving mineralogy of cheilostome bryozoans: Palaios, v. 24, 440–452.CrossRefGoogle Scholar
Taylor, P.D., Lombardi, C., and Cocito, S., 2015, Biomineralization in bryozoans: present, past and future: Biological Reviews, v 90, p. 1118–1150.CrossRefGoogle ScholarPubMed
von Koenen, A., 1889, Das Norddeutsche Unter-Oligocän und seine Mollusken Fauna I: Berlin, Königlich Preussischen Geologischen Landesanstalt, 574 p.Google Scholar
von Koenen, A., 1891, Das Norddeutsche Unter-Oligocän und seine Mollusken Fauna III: Berlin, Königlich Preussischen Geologischen Landesanstalt, 624 p.Google Scholar
von Koenen, A., 1893, Das Norddeutsche Unter-Oligocän und seine Mollusken Fauna V: Berlin, Königlich Preussischen Geologischen Landesanstalt, 1458 p.Google Scholar
Waters, A.W., 1926, Ancestrulae and frontals of cheilostomatous Bryozoa, Part 4: Annals and Magazine of Natural History, v. 17, p. 425–439.CrossRefGoogle Scholar