{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361418518742947712.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1017/s0022336000034363"}},{"identifier":{"@type":"URI","@value":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000034363"}}],"dc:title":[{"@value":"<i>Phycosiphon incertum</i> revisited: <i>Anconichnus horizontalis</i> is its junior subjective synonym"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Comparisons between <jats:italic>Phycosiphon incertum</jats:italic> Fischer-Ooster (1858) and <jats:italic>Anconichnus horizontalis</jats:italic> Kern (1978) show that these two monotypic ichnogenera do not differ significantly in geometry, size, sediment fill, and environmental occurrence. Therefore, taxonomic priority has to be given to <jats:italic>Phycosiphon</jats:italic> and <jats:italic>Anconichnus</jats:italic> becomes a subjective junior synonym. The trace fossil is a small, highly lobed spreite structure produced by a zoned backfill consisting of a pale mantle and dark core. In a few cases, a meniscate structure is visible in the core. The spreite sediment is an extension of the mantle material; it commonly is poorly visible. The spreite-producing behavior may be locally interrupted, leaving a single tube of backfill. The spatial arrangement of the trace fossils seems to depend on the host sediment; in muddy and homogeneous material the lobes tend to be oriented randomly, including vertically, whereas in laminated sand and silty sediments they tend to lie parallel to bedding. This latter orientation is exaggerated by compaction. Textural differences between host sediment and spreite or mantle may be subtle and not always evident. Observations in modern sediments are in agreement with the type material of both ichnogenera.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381418518742947713","@type":"Researcher","foaf:name":[{"@value":"Andreas Wetzel"}]},{"@id":"https://cir.nii.ac.jp/crid/1381418518742947712","@type":"Researcher","foaf:name":[{"@value":"Richard G. Bromley"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00223360"},{"@type":"EISSN","@value":"19372337"}],"prism:publicationName":[{"@value":"Journal of Paleontology"}],"dc:publisher":[{"@value":"Cambridge University Press (CUP)"}],"prism:publicationDate":"1994-11","prism:volume":"68","prism:number":"6","prism:startingPage":"1396","prism:endingPage":"1402"},"reviewed":"false","dc:rights":["https://www.cambridge.org/core/terms"],"url":[{"@id":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000034363"}],"createdAt":"2016-08-05","modifiedAt":"2019-05-15","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050017732462666752","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Abundance of trace fossil Phycosiphon incertum in core sections measured using a convolutional neural network"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004234206833408","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Utility of Geochemical Analysis of Trace Fossils: Case Studies Using<i>Phycosiphon incertum</i>from the Lower Jurassic Shallow-Marine (Higashinagano Formation, Southwest Japan) and Pliocene Deep-Marine Deposits (Shiramazu Formation, Central Japan)"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681214066304","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Stratigraphic revision of the Jurassic Toyora Group of the southern part of the Tabe basin, Yamaguchi Prefecture, southwest Japan."},{"@language":"ja","@value":"山口県，田部盆地南部のジュラ系豊浦層群の層序の再検討"},{"@language":"ja-Kana","@value":"ヤマグチケン タベ ボンチ ナンブ ノ ジュラケイ トヨラソウグン ノ ソウ ジョ ノ サイケントウ"}]},{"@id":"https://cir.nii.ac.jp/crid/2050307417125249792","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Multiproxy sedimentological and geochemical analyses across the Lower–Middle Pleistocene boundary : chemostratigraphy and paleoenvironment of the Chiba composite section, central Japan"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1017/s0022336000034363"},{"@type":"CROSSREF","@value":"10.1080/10420940.2013.877008_references_DOI_UGnwl0NKvE7AzE8ZuRQti0Wc3L8"},{"@type":"CROSSREF","@value":"10.5575/geosoc.116.27_references_DOI_UGnwl0NKvE7AzE8ZuRQti0Wc3L8"},{"@type":"CROSSREF","@value":"10.1016/j.sedgeo.2023.106570_references_DOI_UGnwl0NKvE7AzE8ZuRQti0Wc3L8"},{"@type":"CROSSREF","@value":"10.1186/s40645-020-00393-5_references_DOI_UGnwl0NKvE7AzE8ZuRQti0Wc3L8"}]}