{"title":"英国怀特岛古近纪的蚀刻龟骨","authors":"S. Donovan, M. Simpson","doi":"10.1080/10420940.2020.1784160","DOIUrl":null,"url":null,"abstract":"Abstract Many aspects of the palaeontology of the Isle of Wight are well known, but less so its ichnology. A turtle bone, Emys? sp., from the Lower Oligocene (Rupelian) Hamstead Member, Bouldnor Formation, exposed on the north coast of the island, preserves an unusual surface etching. Dictyoporus nodosus Mägdefrau is recorded from the Paleogene for the first time; hitherto, in northern Europe, it was only known from the Mesozoic. This is also its first record in bone. The trace fossil is an elongate reticulate structure which extended onto adjacent parts of the skeleton (not preserved). Morphologically, identical borings in hard substrates should be included in the same ichnogenus; the nature of the substrate – wood, limestone, bone – is a poor ichnotaxobase. Thus, the clavate bone boring, Karethraichnus Zonneveld et al. is synonymized with Gastrochaenolites Leymerie, more common in limestone. The rarity of D. nodosus may be due to collection failure, in part; perhaps collectors are not looking for surface etchings.","PeriodicalId":51057,"journal":{"name":"Ichnos-An International Journal for Plant and Animal Traces","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2020-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"An etched turtle bone from the Paleogene of the Isle of Wight, UK\",\"authors\":\"S. Donovan, M. Simpson\",\"doi\":\"10.1080/10420940.2020.1784160\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Many aspects of the palaeontology of the Isle of Wight are well known, but less so its ichnology. A turtle bone, Emys? sp., from the Lower Oligocene (Rupelian) Hamstead Member, Bouldnor Formation, exposed on the north coast of the island, preserves an unusual surface etching. Dictyoporus nodosus Mägdefrau is recorded from the Paleogene for the first time; hitherto, in northern Europe, it was only known from the Mesozoic. This is also its first record in bone. The trace fossil is an elongate reticulate structure which extended onto adjacent parts of the skeleton (not preserved). Morphologically, identical borings in hard substrates should be included in the same ichnogenus; the nature of the substrate – wood, limestone, bone – is a poor ichnotaxobase. Thus, the clavate bone boring, Karethraichnus Zonneveld et al. is synonymized with Gastrochaenolites Leymerie, more common in limestone. The rarity of D. nodosus may be due to collection failure, in part; perhaps collectors are not looking for surface etchings.\",\"PeriodicalId\":51057,\"journal\":{\"name\":\"Ichnos-An International Journal for Plant and Animal Traces\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2020-07-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ichnos-An International Journal for Plant and Animal Traces\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.1080/10420940.2020.1784160\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PALEONTOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ichnos-An International Journal for Plant and Animal Traces","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1080/10420940.2020.1784160","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PALEONTOLOGY","Score":null,"Total":0}
An etched turtle bone from the Paleogene of the Isle of Wight, UK
Abstract Many aspects of the palaeontology of the Isle of Wight are well known, but less so its ichnology. A turtle bone, Emys? sp., from the Lower Oligocene (Rupelian) Hamstead Member, Bouldnor Formation, exposed on the north coast of the island, preserves an unusual surface etching. Dictyoporus nodosus Mägdefrau is recorded from the Paleogene for the first time; hitherto, in northern Europe, it was only known from the Mesozoic. This is also its first record in bone. The trace fossil is an elongate reticulate structure which extended onto adjacent parts of the skeleton (not preserved). Morphologically, identical borings in hard substrates should be included in the same ichnogenus; the nature of the substrate – wood, limestone, bone – is a poor ichnotaxobase. Thus, the clavate bone boring, Karethraichnus Zonneveld et al. is synonymized with Gastrochaenolites Leymerie, more common in limestone. The rarity of D. nodosus may be due to collection failure, in part; perhaps collectors are not looking for surface etchings.
期刊介绍:
The foremost aim of Ichnos is to promote excellence in ichnologic research. Primary emphases center upon the ethologic and ecologic significance of tracemaking organisms; organism-substrate interrelationships; and the role of biogenic processes in environmental reconstruction, sediment dynamics, sequence or event stratigraphy, biogeochemistry, and sedimentary diagenesis. Each contribution rests upon a firm taxonomic foundation, although papers dealing solely with systematics and nomenclature may have less priority than those dealing with conceptual and interpretive aspects of ichnology. Contributions from biologists and geologists are equally welcome.
The format for Ichnos is designed to accommodate several types of manuscripts, including Research Articles (comprehensive articles dealing with original, fundamental research in ichnology), and Short Communications (short, succinct papers treating certain aspects of the history of ichnology, book reviews, news and notes, or invited comments dealing with current or contentious issues). The large page size and two-column format lend flexibility to the design of tables and illustrations. Thorough but timely reviews and rapid publication of manuscripts are integral parts of the process.