{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T14:48:00Z","timestamp":1786978080733,"version":"build-2736575974"},"reference-count":48,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2005,2,6]],"date-time":"2005-02-06T00:00:00Z","timestamp":1107648000000},"content-version":"vor","delay-in-days":7282,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Morphology"],"published-print":{"date-parts":[[1985,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    The fine structure of the shell and underlying mantle in young juveniles of the articulate brachiopod\n                    <jats:italic>Terebratalia transversa<\/jats:italic>\n                    has been examined by electron microscopy. The first shell produced by the mantle consists of a nonhinged protegulum that lacks concentric growth lines. The protegulum is secreted within a day after larval metamorphosis and typically measures 140\u2013150 \u03bcm long. A thin organic periostracum constitutes the outer layer of the protegulum, and finely granular shell material occurs beneath the periostracum. Protegula resist digestion in sodium hypochlorite and are refractory to sectioning, suggesting that the subperiostracal portion of the primordial shell is mineralized. The juvenile shell at 4 days postmetamorphosis possesses incomplete sockets and rudimentary teeth that consist of nonfibrous material. The secondary layer occurring in the inner part of the juvenile shell contains imbricated fibers, whereas the outer portion of the shell comprises a bipartite periostracum and an underlying primary layer of nonfibrous shell. Deposition of the periostracum takes place within a slot that is situated between the socalled lobate and vesicular cells of the outer mantle lobe. Vesicular cells deposit the basal layer of the periostracum, while lobate cells contribute materials to the overlying periostracal superstructure. Cells with numerous tonofibrils and hemidesmosomes differentiate in the outer mantle epithelium at sites of muscle attachments, and unbranched punctae that surround mantle caeca develop throughout the subperiostracal portion of the shell. Three weeks after metamorphosis, the juvenile shell averages about 320 \u03bcm in length and is similar in ultrastructure to the shells secreted by adult articulates.\n                  <\/jats:p>","DOI":"10.1002\/jmor.1051830303","type":"journal-article","created":{"date-parts":[[2005,2,24]],"date-time":"2005-02-24T12:26:50Z","timestamp":1109248010000},"page":"251-271","source":"Crossref","is-referenced-by-count":36,"title":["The ontogeny of shell secrtion in\n                    <i>Terebratalia transversa<\/i>\n                    (brachiopoda, articulata) II. Formation of the protegulum and juvenile shell"],"prefix":"10.1002","volume":"183","author":[{"given":"Stephen A.","family":"Stricker","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christopher G.","family":"Reed","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2005,2,6]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0016756800070667"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.2475\/ajs.s3-41.244.343"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.2475\/ajs.s3-44.260.133"},{"key":"e_1_2_1_5_1","first-page":"491","article-title":"Ultrastructure of the protegulum of some acrotretide brachiopods","volume":"13","author":"Biernat G.","year":"1974","journal-title":"Palaeontology"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00343879"},{"key":"e_1_2_1_7_1","first-page":"1","article-title":"The shell structure of chonetacean brachiopods and their ancestors","volume":"21","author":"Brunton C. H. C.","year":"1972","journal-title":"Bull. Br. Mus. Nat. Hist. Geol."},{"key":"e_1_2_1_8_1","first-page":"439","volume-title":"Scanning Electron Microscopy, 1979","author":"Carter J. G.","year":"1979"},{"key":"e_1_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.1051380304"},{"key":"e_1_2_1_10_1","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1093\/icb\/17.1.39","article-title":"Larval development in Discinisca (Inarticulate Brachiopod)","volume":"17","author":"Chuang S.\u2010H.","year":"1977","journal-title":"Am. Zool."},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00347297"},{"key":"e_1_2_1_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1502-3931.1983.tb01707.x"},{"key":"e_1_2_1_13_1","first-page":"155","article-title":"On larval development and metamorphosis in Terebratulina, Brachiopoda","volume":"38","author":"Franz\u00e9n A.","year":"1969","journal-title":"Zool. Bidr. Uppsala"},{"key":"e_1_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1098\/rstb.1978.0048"},{"key":"e_1_2_1_15_1","first-page":"749","volume-title":"Comprehensive Biochemistry","author":"Jope M.","year":"1971"},{"key":"e_1_2_1_16_1","first-page":"57","article-title":"Observations sur le d\u00e9veloppment des brachiopodes","volume":"1","author":"Kowalevsky A.","year":"1883","journal-title":"Arch. Zool. Exp. Gen."},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-5320(78)80074-4"},{"key":"e_1_2_1_18_1","volume-title":"Staining Methods for Sectioned Material","author":"Lewis P. R.","year":"1977"},{"key":"e_1_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1502-3931.1971.tb01927.x"},{"key":"e_1_2_1_20_1","first-page":"189","article-title":"The shell structure of spiriferide Brachiopoda","volume":"25","author":"MacKinnon D. I.","year":"1974","journal-title":"Bull. Br. Mus. Nat. Hist. Geol."},{"key":"e_1_2_1_21_1","doi-asserted-by":"publisher","DOI":"10.1098\/rstb.1977.0098"},{"key":"e_1_2_1_22_1","first-page":"179","article-title":"Shell structure of terebratulid brachiopods","volume":"17","author":"MacKinnon D. I.","year":"1974","journal-title":"Paleontology"},{"key":"e_1_2_1_23_1","first-page":"249","article-title":"Embryology of Terebratulina","volume":"2","author":"Morse E. S.","year":"1873","journal-title":"Mem. Boston Soc. Nat. Hist."},{"key":"e_1_2_1_24_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.1969.0019"},{"key":"e_1_2_1_25_1","first-page":"1","article-title":"A contribution to the life\u2010history of the brachiopod, Terebratella inconspicua Sowerby","volume":"74","author":"Percival E.","year":"1944","journal-title":"Trans. R. Soc. N.Z."},{"key":"e_1_2_1_26_1","first-page":"439","article-title":"A contribution to the life\u2010history of the brachiopod Tegulorhynchia nigricans","volume":"101","author":"Percival E.","year":"1960","journal-title":"Q. J. Microsc. Soc."},{"key":"e_1_2_1_27_1","first-page":"494","article-title":"On the structure and development of Argiope","volume":"4","author":"Shipley A. E.","year":"1883","journal-title":"Mitt. Zool. Stat. Neapel."},{"key":"e_1_2_1_28_1","first-page":"575","volume-title":"Histology","author":"Strauss J. S.","year":"1977"},{"key":"e_1_2_1_29_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00310277"},{"key":"e_1_2_1_30_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.1051690106"},{"key":"e_1_2_1_31_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.1051830302"},{"key":"e_1_2_1_32_1","doi-asserted-by":"crossref","unstructured":"Stricker S. A.andC. G.Reed(1985b)The protegulum and juvenile shell of a Recent articulate brachiopod: Patterns of growth and chemical composition. Lethaia (in press).","DOI":"10.1111\/j.1502-3931.1985.tb00708.x"},{"key":"e_1_2_1_33_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF02058669"},{"key":"e_1_2_1_34_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmor.1051490304"},{"key":"e_1_2_1_35_1","first-page":"705","article-title":"Formation and function of protegular pitting in some North American acrotretid brachiopods","volume":"22","author":"von Bitter P. H.","year":"1979","journal-title":"Paleontology"},{"key":"e_1_2_1_36_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-185X.1956.tb01591.x"},{"key":"e_1_2_1_37_1","doi-asserted-by":"publisher","DOI":"10.1038\/2111146a0"},{"key":"e_1_2_1_38_1","doi-asserted-by":"publisher","DOI":"10.1038\/218551a0"},{"key":"e_1_2_1_39_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1502-3931.1968.tb01741.x"},{"key":"e_1_2_1_40_1","first-page":"1","article-title":"Evolution of the shell structure of articulate brachiopods","volume":"2","author":"Williams A.","year":"1968","journal-title":"Spec. Papers Paleo."},{"key":"e_1_2_1_41_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF02196180"},{"key":"e_1_2_1_42_1","doi-asserted-by":"publisher","DOI":"10.5479\/si.00810231.3-6.47"},{"key":"e_1_2_1_43_1","first-page":"37","volume-title":"Scanning Electron Microscopy. Systematic and Evolutionary Applications","author":"Williams A.","year":"1971"},{"key":"e_1_2_1_44_1","doi-asserted-by":"publisher","DOI":"10.1098\/rstb.1973.0001"},{"key":"e_1_2_1_45_1","doi-asserted-by":"publisher","DOI":"10.1093\/icb\/17.1.107"},{"key":"e_1_2_1_46_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.1977.0061"},{"key":"e_1_2_1_47_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.1978.0063"},{"key":"e_1_2_1_48_1","first-page":"721","article-title":"Differentiation of the brachiopod periostracum","volume":"22","author":"Williams A.","year":"1979","journal-title":"Palaeontology"},{"key":"e_1_2_1_49_1","first-page":"H6","volume-title":"Treatise on Invertebrate Paleontology","author":"Williams A.","year":"1965"}],"container-title":["Journal of Morphology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjmor.1051830303","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jmor.1051830303","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,20]],"date-time":"2023-10-20T13:21:39Z","timestamp":1697808099000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jmor.1051830303"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1985,3]]},"references-count":48,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1985,3]]}},"alternative-id":["10.1002\/jmor.1051830303"],"URL":"https:\/\/doi.org\/10.1002\/jmor.1051830303","archive":["Portico"],"relation":{},"ISSN":["0362-2525","1097-4687"],"issn-type":[{"value":"0362-2525","type":"print"},{"value":"1097-4687","type":"electronic"}],"subject":[],"published":{"date-parts":[[1985,3]]}}}