Balizoma and the new genera Aegrotocatellus and Perirehaedulus: Encrinurid trilobites from the Douro Formation (Siluiran, Ludlow) of the central Canadian Arctic
Species of two new genera of Encrinuridae occur in the Ludlow Douro Formation at Goodsir Creek, Cornwallis Island, Gamier Bay, Somerset Island, and Prince Alfred Bay, Devon Island. The encrinurine Aegrotocatellus n. gen. includes four highly autapomorphic species, and is most closely related to Bali...
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| Veröffentlicht in: | Journal of paleontology 1995-07, Vol.69 (4), p.736-752 |
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| creator | Adrain, Jonathan M. Edgecombe, Gregory D. |
| description | Species of two new genera of Encrinuridae occur in the Ludlow Douro Formation at Goodsir Creek, Cornwallis Island, Gamier Bay, Somerset Island, and Prince Alfred Bay, Devon Island. The encrinurine Aegrotocatellus n. gen. includes four highly autapomorphic species, and is most closely related to Balizoma Holloway, 1980. Separate taxa are recognized at low and high stratigraphic intervals at Goodsir Creek (the type species, Aegrotocatellus jaggeri n. gen. and sp., and Aegrotocatellus n. sp. A, respectively), at Gamier Bay (Aegrotocatellus n. sp. B), and at Prince Alfred Bay (Aegrotocatellus nankerphelgeorum n. gen. and sp.). Perirehaedulus n. gen. is a coronocephaline most closely related to the Chinese upper Llandovery taxon Kailia Chang, 1974. The type species, Perirehaedulus caprus (Thomas in Thomas and Narbonne, 1979) from Goodsir Creek, is distinct from P. richardsi n. gen. and sp. at Garnier Bay. The upper Wenlock–Ludlow range of Balizoma is extended into the Arctic by Balizoma aff. B. variolaris (Brongniart, 1822) from Homerian rocks of the Cape Phillips Formation near Abbott River, Cornwallis Island, and by Balizoma sp., from the late Ludlow Douro Formation at Goodsir Creek. |
| doi_str_mv | 10.1017/S0022336000035253 |
| format | Article |
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The encrinurine Aegrotocatellus n. gen. includes four highly autapomorphic species, and is most closely related to Balizoma Holloway, 1980. Separate taxa are recognized at low and high stratigraphic intervals at Goodsir Creek (the type species, Aegrotocatellus jaggeri n. gen. and sp., and Aegrotocatellus n. sp. A, respectively), at Gamier Bay (Aegrotocatellus n. sp. B), and at Prince Alfred Bay (Aegrotocatellus nankerphelgeorum n. gen. and sp.). Perirehaedulus n. gen. is a coronocephaline most closely related to the Chinese upper Llandovery taxon Kailia Chang, 1974. The type species, Perirehaedulus caprus (Thomas in Thomas and Narbonne, 1979) from Goodsir Creek, is distinct from P. richardsi n. gen. and sp. at Garnier Bay. The upper Wenlock–Ludlow range of Balizoma is extended into the Arctic by Balizoma aff. B. variolaris (Brongniart, 1822) from Homerian rocks of the Cape Phillips Formation near Abbott River, Cornwallis Island, and by Balizoma sp., from the late Ludlow Douro Formation at Goodsir Creek.</description><identifier>ISSN: 0022-3360</identifier><identifier>EISSN: 1937-2337</identifier><identifier>DOI: 10.1017/S0022336000035253</identifier><identifier>CODEN: JPALAZ</identifier><language>eng</language><publisher>New York, USA: Cambridge University Press</publisher><subject>Biological taxonomies ; Carbonates ; Eyes ; Fauna ; Fossils ; Genera ; Geological surveys ; Geology ; Marine ; New genus ; Paleontology ; Stratigraphy ; Taxa ; Trilobita</subject><ispartof>Journal of paleontology, 1995-07, Vol.69 (4), p.736-752</ispartof><rights>Copyright © The Paleontological Society</rights><rights>Copyright 1995 The Paleontological Society</rights><rights>Copyright Paleontological Society Jul 1995</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c366t-5d86d5d4d2ff1032ce6b9db972d8a30fa4b4e27c27e53fa58872afad29a62a7d3</citedby><cites>FETCH-LOGICAL-c366t-5d86d5d4d2ff1032ce6b9db972d8a30fa4b4e27c27e53fa58872afad29a62a7d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/1306307$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/1306307$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,27923,27924,58016,58249</link.rule.ids></links><search><creatorcontrib>Adrain, Jonathan M.</creatorcontrib><creatorcontrib>Edgecombe, Gregory D.</creatorcontrib><title>Balizoma and the new genera Aegrotocatellus and Perirehaedulus: Encrinurid trilobites from the Douro Formation (Siluiran, Ludlow) of the central Canadian Arctic</title><title>Journal of paleontology</title><addtitle>J. Paleontol</addtitle><description>Species of two new genera of Encrinuridae occur in the Ludlow Douro Formation at Goodsir Creek, Cornwallis Island, Gamier Bay, Somerset Island, and Prince Alfred Bay, Devon Island. The encrinurine Aegrotocatellus n. gen. includes four highly autapomorphic species, and is most closely related to Balizoma Holloway, 1980. Separate taxa are recognized at low and high stratigraphic intervals at Goodsir Creek (the type species, Aegrotocatellus jaggeri n. gen. and sp., and Aegrotocatellus n. sp. A, respectively), at Gamier Bay (Aegrotocatellus n. sp. B), and at Prince Alfred Bay (Aegrotocatellus nankerphelgeorum n. gen. and sp.). Perirehaedulus n. gen. is a coronocephaline most closely related to the Chinese upper Llandovery taxon Kailia Chang, 1974. The type species, Perirehaedulus caprus (Thomas in Thomas and Narbonne, 1979) from Goodsir Creek, is distinct from P. richardsi n. gen. and sp. at Garnier Bay. The upper Wenlock–Ludlow range of Balizoma is extended into the Arctic by Balizoma aff. B. variolaris (Brongniart, 1822) from Homerian rocks of the Cape Phillips Formation near Abbott River, Cornwallis Island, and by Balizoma sp., from the late Ludlow Douro Formation at Goodsir Creek.</description><subject>Biological taxonomies</subject><subject>Carbonates</subject><subject>Eyes</subject><subject>Fauna</subject><subject>Fossils</subject><subject>Genera</subject><subject>Geological surveys</subject><subject>Geology</subject><subject>Marine</subject><subject>New genus</subject><subject>Paleontology</subject><subject>Stratigraphy</subject><subject>Taxa</subject><subject>Trilobita</subject><issn>0022-3360</issn><issn>1937-2337</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNp1kd9qFDEUxgex4Nr6AIIXwQtRcDR_djIz3q1rq4UFher1cCY5s80yk9STDEWfxkdtdrdQUMxN4Hy_7zs5OUXxXPB3gov6_RXnUiqleT6qkpV6VCxEq-oyF-vHxWIvl3v9SfE0xh3nQmohFsWfjzC632ECBt6ydI3M4y3bokcCtsIthRQMJBzHOR6Qb0iO8BrQzrn0gZ17Q87P5LKb3Bh6lzCygcJ0SPsUZgrsItAEyQXPXl-5cXYE_i3bzHYMt29YGA6kQZ8IRrYGD9aBZysyyZmz4mSAMeKz-_u0-HFx_n39pdx8_Xy5Xm1Ko7ROZWUbbSu7tHIYBFfSoO5b27e1tA0oPsCyX6KsjayxUgNUTVNLGMDKFrSE2qrT4tUx94bCzxlj6iYXTZ4bPIY5dkK3Wsm2yeDLv8BdntHnt3VSCbHkilcZEkfIUIiRcOhuyE1AvzrBu_3Cun8Wlj0vjp5dTIEeDIprxessq_tImPr83Vt8aPz_0Du6PqM-</recordid><startdate>19950701</startdate><enddate>19950701</enddate><creator>Adrain, Jonathan M.</creator><creator>Edgecombe, Gregory D.</creator><general>Cambridge University Press</general><general>Paleontological Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>4T-</scope><scope>4U-</scope><scope>7SN</scope><scope>7TN</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>19950701</creationdate><title>Balizoma and the new genera Aegrotocatellus and Perirehaedulus: Encrinurid trilobites from the Douro Formation (Siluiran, Ludlow) of the central Canadian Arctic</title><author>Adrain, Jonathan M. ; Edgecombe, Gregory D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c366t-5d86d5d4d2ff1032ce6b9db972d8a30fa4b4e27c27e53fa58872afad29a62a7d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Biological taxonomies</topic><topic>Carbonates</topic><topic>Eyes</topic><topic>Fauna</topic><topic>Fossils</topic><topic>Genera</topic><topic>Geological surveys</topic><topic>Geology</topic><topic>Marine</topic><topic>New genus</topic><topic>Paleontology</topic><topic>Stratigraphy</topic><topic>Taxa</topic><topic>Trilobita</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Adrain, Jonathan M.</creatorcontrib><creatorcontrib>Edgecombe, Gregory D.</creatorcontrib><collection>CrossRef</collection><collection>Docstoc</collection><collection>University Readers</collection><collection>Ecology Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of paleontology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Adrain, Jonathan M.</au><au>Edgecombe, Gregory D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Balizoma and the new genera Aegrotocatellus and Perirehaedulus: Encrinurid trilobites from the Douro Formation (Siluiran, Ludlow) of the central Canadian Arctic</atitle><jtitle>Journal of paleontology</jtitle><addtitle>J. Paleontol</addtitle><date>1995-07-01</date><risdate>1995</risdate><volume>69</volume><issue>4</issue><spage>736</spage><epage>752</epage><pages>736-752</pages><issn>0022-3360</issn><eissn>1937-2337</eissn><coden>JPALAZ</coden><abstract>Species of two new genera of Encrinuridae occur in the Ludlow Douro Formation at Goodsir Creek, Cornwallis Island, Gamier Bay, Somerset Island, and Prince Alfred Bay, Devon Island. The encrinurine Aegrotocatellus n. gen. includes four highly autapomorphic species, and is most closely related to Balizoma Holloway, 1980. Separate taxa are recognized at low and high stratigraphic intervals at Goodsir Creek (the type species, Aegrotocatellus jaggeri n. gen. and sp., and Aegrotocatellus n. sp. A, respectively), at Gamier Bay (Aegrotocatellus n. sp. B), and at Prince Alfred Bay (Aegrotocatellus nankerphelgeorum n. gen. and sp.). Perirehaedulus n. gen. is a coronocephaline most closely related to the Chinese upper Llandovery taxon Kailia Chang, 1974. The type species, Perirehaedulus caprus (Thomas in Thomas and Narbonne, 1979) from Goodsir Creek, is distinct from P. richardsi n. gen. and sp. at Garnier Bay. The upper Wenlock–Ludlow range of Balizoma is extended into the Arctic by Balizoma aff. B. variolaris (Brongniart, 1822) from Homerian rocks of the Cape Phillips Formation near Abbott River, Cornwallis Island, and by Balizoma sp., from the late Ludlow Douro Formation at Goodsir Creek.</abstract><cop>New York, USA</cop><pub>Cambridge University Press</pub><doi>10.1017/S0022336000035253</doi><tpages>17</tpages></addata></record> |
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| language | eng |
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| source | JSTOR Archive Collection A-Z Listing |
| subjects | Biological taxonomies Carbonates Eyes Fauna Fossils Genera Geological surveys Geology Marine New genus Paleontology Stratigraphy Taxa Trilobita |
| title | Balizoma and the new genera Aegrotocatellus and Perirehaedulus: Encrinurid trilobites from the Douro Formation (Siluiran, Ludlow) of the central Canadian Arctic |
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