Clonal colony in the Early Devonian cnidarian Sphenothallus from Brazil

dc.contributor.authorVan Iten, Heyo
dc.contributor.authorLeme, Juliana De Moraes
dc.contributor.authorSimoes, Marcello G. [UNESP]
dc.contributor.authorCournoyer, Mario
dc.contributor.institutionHanover Coll
dc.contributor.institutionCincinnati Museum Ctr
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionMusee Paleontol & Evolut
dc.description.abstractThe fossil record of polypoid cnidarians includes a number of taxa that were incorrectly identified as either tubiculous worms or plants. The holotype of the putative alga Euzebiola clarkei (Ponta Grossa Formation, Lower Devonian, Brazil), originally described under the name Serpulites sica, is re-described and re-figured as a species of Sphenothallus, a medusozoan cnidarian. Unlike Sphenothallus from other localities, the black, organic-walled Ponta Grossa specimen consists of a single parent tube that is confluent with the apical ends of at least 18 daughter tubes. The pattern of arrangement of the daughter tubes, which are arrayed in single file along the exposed face and the two thickened margins of the parent tube, partly resembles the whorl-like pattern of arrangement of colonial polyps of certain scyphozoan cnidarians. For these reasons, the Ponta Grossa Formation material figures prominently in the argument that Sphenothallus was a medusozoan cnidarian capable (in at least one species) of clonal budding.en
dc.description.affiliationHanover Coll, Dept Geol, Hanover, IN 47243 USA
dc.description.affiliationCincinnati Museum Ctr, Dept Invertebrate Paleontol, 1301 Western Ave, Cincinnati, OH 45203 USA
dc.description.affiliationUniv Sao Paulo, Dept Sedimentary & Environm Geol, BR-05508080 Sao Paulo, SP, Brazil
dc.description.affiliationSao Paulo State Univ, Dept Zool, Botucatu Campus, BR-18618689 Botucatu, SP, Brazil
dc.description.affiliationMusee Paleontol & Evolut, 541 Congregat St, Montreal, PQ H3K 2J1, Canada
dc.description.affiliationUnespSao Paulo State Univ, Dept Zool, Botucatu Campus, BR-18618689 Botucatu, SP, Brazil
dc.description.sponsorshipHanover College Faculty Development Committee
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 99/10823-5
dc.description.sponsorshipIdFAPESP: 99/10824-1
dc.description.sponsorshipIdFAPESP: 00/14903-2
dc.description.sponsorshipIdFAPESP: 00/14904-9
dc.description.sponsorshipIdFAPESP: 01/12835-2
dc.description.sponsorshipIdCNPq: 301023/94-8
dc.identifier.citationActa Palaeontologica Polonica. Warsaw: Inst Paleobiologii Pan, v. 64, n. 2, p. 409-416, 2019.
dc.publisherInst Paleobiologii Pan
dc.relation.ispartofActa Palaeontologica Polonica
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectclonal budding
dc.titleClonal colony in the Early Devonian cnidarian Sphenothallus from Brazilen
dcterms.rightsHolderInst Paleobiologii Pan