2009
DOI: 10.3176/earth.2009.1.06
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Systematic position, distribution, and shell structure of the Devonian linguloid brachiopodBicarinatina bicarinata(Kutorga, 1837)

Abstract: The type species of the brachiopod genus Bicarinatina Batrukova was first described by Kutorga in 1837 (Zweiter Beitrag zur Geognosie und Paläaontologie Dorpats und seiner nächsten Umbegebungen. St.-Petersbourg, 51 pp.) as Lingula bicarinata from the Middle Devonian sandstone beds now assigned to the Aruküla Regional Stage in Tartu, Estonia. Gravitis (1981, in Devon i karbon pribaltiki (Brangulis et al., eds), pp. 455-462. Zinatne, Riga) described eight new species of the genus Bicarinatina. Revision of the co… Show more

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“…Nanofibrils described in U. inornata are similar to those known in Obolus ruchini and Bicarinatina bicarinata (Lang & Puura 2009;Lang et al 2011). By analogy with modem genera Discinisca and Glottidia (Williams et al 1998;Williams & Cusaek 2007), the details of the nanostruetures of U. inornata and related fossil linguloids allow us to interpret the nanofibrils as biopolymers supporting the formation of baeula.…”
Section: Discussionmentioning
confidence: 75%
See 1 more Smart Citation
“…Nanofibrils described in U. inornata are similar to those known in Obolus ruchini and Bicarinatina bicarinata (Lang & Puura 2009;Lang et al 2011). By analogy with modem genera Discinisca and Glottidia (Williams et al 1998;Williams & Cusaek 2007), the details of the nanostruetures of U. inornata and related fossil linguloids allow us to interpret the nanofibrils as biopolymers supporting the formation of baeula.…”
Section: Discussionmentioning
confidence: 75%
“…Phosphatized fibril-like organic nanostructures in shells of fossil linguloid brachiopods have been documented in rare occasions (Lang & Puura 2009;Lang et al 2011). By analogy with studies of some modem linguloids (Merkel et al 2007;Schmahl et al 2008), these nanofibrils have been interpreted as biopolymer strands preserved by immediate post-mortem phosphatization of organic tissues (Lang et al 2011).…”
Section: Introductionmentioning
confidence: 96%