{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T04:02:28Z","timestamp":1773806548907,"version":"3.50.1"},"reference-count":13,"publisher":"The Royal Society","issue":"5","license":[{"start":{"date-parts":[[2013,10,23]],"date-time":"2013-10-23T00:00:00Z","timestamp":1382486400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/royalsociety.org\/journals\/ethics-policies\/data-sharing-mining\/"}],"content-domain":{"domain":["royalsocietypublishing.org"],"crossmark-restriction":true},"short-container-title":["Biol. Lett."],"published-print":{"date-parts":[[2013,10,23]]},"abstract":"<jats:p>\n            The outer armour of fossil jawless fishes (Heterostraci) is, predominantly, a bone with a superficial ornament of dentine tubercles surrounded by pores leading to flask-shaped crypts (ampullae). However, despite the extensive bone present in these early dermal skeletons, damage was repaired almost exclusively with dentine. Consolidation of bone, by dentine invading and filling the vascular spaces, was previously recognized in\n            <jats:italic>Psammolepis<\/jats:italic>\n            and other heterostracans but was associated with ageing and dermal shield wear (reparative). Here, we describe wound repair by deposition of dentine directly onto a bony scaffold of fragmented bone. An extensive wound response occurred from massive deposition of dentine (reactionary), traced from tubercle pulp cavities and surrounding ampullae. These structures may provide the cells to make reparative and reactionary dentine, as in mammalian teeth today in response to stimuli (functional wear or damage). We suggest in\n            <jats:italic>Psammolepis<\/jats:italic>\n            , repair involved mobilization of these cells in response to a local stimulatory mechanism, for example, predator damage. By comparison, almost no new bone is detected in repair of the\n            <jats:italic>Psammolepis<\/jats:italic>\n            shield. Dentine infilling bone vascular tissue spaces of both abraded dentine and wounded bone suggests that recruitment of this process has been evolutionarily conserved over 380 Myr and precedes osteogenic skeletal repair.\n          <\/jats:p>","DOI":"10.1098\/rsbl.2013.0144","type":"journal-article","created":{"date-parts":[[2013,8,7]],"date-time":"2013-08-07T09:14:32Z","timestamp":1375866872000},"page":"20130144","update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":11,"title":["Origins of bone repair in the armour of fossil fish: response to a deep wound by cells depositing dentine instead of dermal bone"],"prefix":"10.1098","volume":"9","author":[{"given":"Zerina","family":"Johanson","sequence":"first","affiliation":[{"name":"Department of Earth Sciences, Natural History Museum, London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Moya","family":"Smith","sequence":"additional","affiliation":[{"name":"Department of Earth Sciences, Natural History Museum, London, UK"},{"name":"Craniofacial Development and Stem Cell Biology, King's College London, London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anton","family":"Kearsley","sequence":"additional","affiliation":[{"name":"Imaging and Analysis Centre, Natural History Museum, London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Pilecki","sequence":"additional","affiliation":[{"name":"Microscopy and Imaging, Dental Institute, King's College London, London, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elga","family":"Mark-Kurik","sequence":"additional","affiliation":[{"name":"Institute of Geology at Tallinn University of Technology, Tallinn, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charles","family":"Howard","sequence":"additional","affiliation":[{"name":"Hadassah Medical Center, Kiryat Hadassah, POB 12000 Jerusalem, 91120, Israel"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"175","published-online":{"date-parts":[[2013,10,23]]},"reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1463-6395.1961.tb00060.x"},{"key":"e_1_3_1_3_2","first-page":"123","article-title":"Die Fische des mittleren Old Red S\u00fcd-Livlands","volume":"18","author":"Gross W","year":"1930","journal-title":"Geol. Palaeontol. Abhand."},{"key":"e_1_3_1_4_2","first-page":"1","article-title":"Psammosteiformes (Agnatha): a review with description of new material from the Lower Devonian of Poland. I. General part","volume":"13","author":"Halstead Tarlo LB","year":"1964","journal-title":"Pal. Polon."},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1463-6409.1976.tb00680.x"},{"key":"e_1_3_1_6_2","first-page":"1","article-title":"Growth and wear of the shield in Pteraspidae (Agnatha)","volume":"143","author":"Denison RH","year":"1973","journal-title":"Palaeontogr. Abt. 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Anat."},{"key":"e_1_3_1_10_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0047394"},{"key":"e_1_3_1_11_2","doi-asserted-by":"publisher","DOI":"10.1002\/bdrc.20012"},{"key":"e_1_3_1_12_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1525-142X.2008.00268.x"},{"key":"e_1_3_1_13_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-185X.1990.tb01427.x"},{"key":"e_1_3_1_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cub.2013.02.055"}],"container-title":["Biology Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/royalsocietypublishing.org\/doi\/pdf\/10.1098\/rsbl.2013.0144","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/royalsocietypublishing.org\/doi\/full-xml\/10.1098\/rsbl.2013.0144","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/royalsocietypublishing.org\/doi\/pdf\/10.1098\/rsbl.2013.0144","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,2,21]],"date-time":"2021-02-21T05:19:54Z","timestamp":1613884794000},"score":1,"resource":{"primary":{"URL":"https:\/\/royalsocietypublishing.org\/doi\/10.1098\/rsbl.2013.0144"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,10,23]]},"references-count":13,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2013,10,23]]}},"alternative-id":["10.1098\/rsbl.2013.0144"],"URL":"https:\/\/doi.org\/10.1098\/rsbl.2013.0144","relation":{},"ISSN":["1744-9561","1744-957X"],"issn-type":[{"value":"1744-9561","type":"print"},{"value":"1744-957X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,10,23]]},"assertion":[{"value":"2013-02-14","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2013-07-15","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2013-10-23","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}