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Yorkicystis
''Yorkicystis'' is a genus of edrioasteroid echinoderm that lived 510 million years ago in the Cambrian aged Kinzers Formation in what is now Pennsylvania. This genus is important as it provides some of the oldest evidence of echinoderms losing their hard Mineralization (biology), mineralized outer skeletons. ''Yorkicystis'' also shows that some echinoderms lost their skeletons during the Cambrian, which is a greatly different time as to when most other species lost theirs. Discovery Fossils of this genus were first discovered in May 2017 by Christopher Haefner in a churchyard in York, Pennsylvania in shale deposits in the Emigsville Member of the Kinzers Formation. Two specimens were found, and numbered NHMUK EE 1659-1660. Aside from ''Yorkicystis'' other echinoderms like ''Lepidocystis'' and ''Camptostroma'' have been found in the formation. The species name is in honor of Haefner, who discovered the fossils, and the genus name is derived from the town of York. Description ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2022 In Paleontology
Flora Plants Fungi Newly named fungi Mycological research * A study on the anatomy of specimens of ''Prototaxites'' from the Heider quarry in Germany and the Bordeaux quarry in Canada is published by Vajda ''et al.'' (2022), who interpret specimens of ''Prototaxites'' as fungi and as rhizomorphs. * Yang ''et al.'' (2022) describe new fossil material of '' Daohugouthallus ciliiferus'' from the Jurassic Jiulongshan Formation (China), providing evidence that this macrolichen inhabited a gymnosperm branch, and name a new family Daohugouthallaceae placed within the class Lecanoromycetes. "Algae" Floral research * Sforna ''et al.'' (2022) report the discovery of bound nickel-tetrapyrrole moieties preserved within cells of a ~1-billion-years-old eukaryote '' Arctacellularia tetragonala'' from the BII Group of the Mbuji-Mayi Supergroup (Democratic Republic of the Congo), identify the tetrapyrrole moieties as chlorophyll derivatives, and interpret ''A. tetragonala'' as one of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
