Ontogeny of the trilobite Redlichia from the lower Cambrian (Series 2, Stage 4) Ramsay Limestone of South Australia
Studies that reveal detailed information about trilobite growth, particularly early developmental stages, are crucial for improving our understanding of the phylogenetic relationships within this iconic group of fossil arthropods. Here we document an essentially complete ontogeny of the trilobite Re...
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| Veröffentlicht in: | Geological magazine 2021-07, Vol.158 (7), p.1209-1223 |
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| creator | Holmes, James D. Paterson, John R. Jago, James B. García-Bellido, Diego C. |
| description | Studies that reveal detailed information about trilobite growth, particularly early developmental stages, are crucial for improving our understanding of the phylogenetic relationships within this iconic group of fossil arthropods. Here we document an essentially complete ontogeny of the trilobite Redlichia cf. versabunda from the Cambrian Series 2 (late Stage 4) Ramsay Limestone of Yorke Peninsula in South Australia, including some of the best-preserved protaspides (the earliest biomineralized trilobite larval stage) known for any Cambrian trilobite. These protaspid stages exhibit similar morphological characteristics to many other taxa within the Suborder Redlichiina, especially to closely related species such as Metaredlichia cylindrica from the early Cambrian period of China. Morphological patterns observed across early developmental stages of different groups within the Order Redlichiida are discussed. Although redlichiine protaspides exhibit similar overall morphologies, certain ontogenetic characters within this suborder have potential phylogenetic signal, with different superfamilies characterized by unique trait combinations in these early growth stages. |
| doi_str_mv | 10.1017/S0016756820001259 |
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Here we document an essentially complete ontogeny of the trilobite Redlichia cf. versabunda from the Cambrian Series 2 (late Stage 4) Ramsay Limestone of Yorke Peninsula in South Australia, including some of the best-preserved protaspides (the earliest biomineralized trilobite larval stage) known for any Cambrian trilobite. These protaspid stages exhibit similar morphological characteristics to many other taxa within the Suborder Redlichiina, especially to closely related species such as Metaredlichia cylindrica from the early Cambrian period of China. Morphological patterns observed across early developmental stages of different groups within the Order Redlichiida are discussed. Although redlichiine protaspides exhibit similar overall morphologies, certain ontogenetic characters within this suborder have potential phylogenetic signal, with different superfamilies characterized by unique trait combinations in these early growth stages.</description><identifier>ISSN: 0016-7568</identifier><identifier>EISSN: 1469-5081</identifier><identifier>DOI: 10.1017/S0016756820001259</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Arthropoda ; Arthropods ; Australasia ; Australia ; Basins ; Cambrian ; Developmental stages ; Fossil animals ; Fossils ; invertebrate ; Larvae ; Limestone ; Lower Cambrian ; Marine invertebrates ; Metaredlichia cylindrica ; Morphology ; Ontogeny ; Original Article ; Paleontology ; Paleozoic ; Phylogeny ; Physical characteristics ; Ramsay Limestone ; Redlichia ; Redlichiida ; South Australia ; Trilobita ; Trilobitomorpha ; Yorke Peninsula</subject><ispartof>Geological magazine, 2021-07, Vol.158 (7), p.1209-1223</ispartof><rights>The Author(s), 2020. Published by Cambridge University Press</rights><rights>GeoRef, Copyright 2021, American Geosciences Institute. Reference includes data from GeoScienceWorld @Alexandria, VA @USA @United States. 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Mag</addtitle><description>Studies that reveal detailed information about trilobite growth, particularly early developmental stages, are crucial for improving our understanding of the phylogenetic relationships within this iconic group of fossil arthropods. Here we document an essentially complete ontogeny of the trilobite Redlichia cf. versabunda from the Cambrian Series 2 (late Stage 4) Ramsay Limestone of Yorke Peninsula in South Australia, including some of the best-preserved protaspides (the earliest biomineralized trilobite larval stage) known for any Cambrian trilobite. These protaspid stages exhibit similar morphological characteristics to many other taxa within the Suborder Redlichiina, especially to closely related species such as Metaredlichia cylindrica from the early Cambrian period of China. Morphological patterns observed across early developmental stages of different groups within the Order Redlichiida are discussed. Although redlichiine protaspides exhibit similar overall morphologies, certain ontogenetic characters within this suborder have potential phylogenetic signal, with different superfamilies characterized by unique trait combinations in these early growth stages.</description><subject>Arthropoda</subject><subject>Arthropods</subject><subject>Australasia</subject><subject>Australia</subject><subject>Basins</subject><subject>Cambrian</subject><subject>Developmental stages</subject><subject>Fossil animals</subject><subject>Fossils</subject><subject>invertebrate</subject><subject>Larvae</subject><subject>Limestone</subject><subject>Lower Cambrian</subject><subject>Marine invertebrates</subject><subject>Metaredlichia cylindrica</subject><subject>Morphology</subject><subject>Ontogeny</subject><subject>Original Article</subject><subject>Paleontology</subject><subject>Paleozoic</subject><subject>Phylogeny</subject><subject>Physical characteristics</subject><subject>Ramsay Limestone</subject><subject>Redlichia</subject><subject>Redlichiida</subject><subject>South Australia</subject><subject>Trilobita</subject><subject>Trilobitomorpha</subject><subject>Yorke Peninsula</subject><issn>0016-7568</issn><issn>1469-5081</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNp1UFtLwzAUDqLgvPwA3wK-KFpN2qZNHsfwBgPB6XNJmtMto21mkjH27003QUF8Oufw3Q4fQheU3FFCy_sZIbQoWcFTEreUiQM0onkhEkY4PUSjAU4G_BideL-MZ0Y4HyH_2gc7h36LbYPDAnBwprXKBMBvoFtTL4zEjbPdDmztBhyeyE45I3t8NQNnwOP0Fs-CnAPOr_Gb7Lzc4qnpwAfbw-A7s-uwwOO1D062Rp6ho0a2Hs6_5yn6eHx4nzwn09enl8l4msisLELSCFULzrXOVU4Yr2leKq2ZLiAr84wLpiiUipdpwQtBBYFCQaaYUlILkjOSnaLLve_K2c91fKda2rXrY2SVskxEVdRGFt2zame9d9BUK2c66bYVJdXQbfWn26i52WvmYH1toK9hY12rfwWQlFZkKJ9FdvadsCtOz-GH93_GF_s-iR8</recordid><startdate>20210701</startdate><enddate>20210701</enddate><creator>Holmes, James D.</creator><creator>Paterson, John R.</creator><creator>Jago, James B.</creator><creator>García-Bellido, Diego C.</creator><general>Cambridge University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>H96</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>L6V</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>R05</scope><orcidid>https://orcid.org/0000-0003-1922-9836</orcidid><orcidid>https://orcid.org/0000-0002-3059-1572</orcidid><orcidid>https://orcid.org/0000-0001-8804-2149</orcidid><orcidid>https://orcid.org/0000-0003-2947-3912</orcidid></search><sort><creationdate>20210701</creationdate><title>Ontogeny of the trilobite Redlichia from the lower Cambrian (Series 2, Stage 4) Ramsay Limestone of South Australia</title><author>Holmes, James D. ; Paterson, John R. ; Jago, James B. ; García-Bellido, Diego C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a376t-f9bc988dd4b4058c147bdd5d6e3743895b1e7b8726869190e6be3b5bbad904503</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Arthropoda</topic><topic>Arthropods</topic><topic>Australasia</topic><topic>Australia</topic><topic>Basins</topic><topic>Cambrian</topic><topic>Developmental stages</topic><topic>Fossil animals</topic><topic>Fossils</topic><topic>invertebrate</topic><topic>Larvae</topic><topic>Limestone</topic><topic>Lower Cambrian</topic><topic>Marine invertebrates</topic><topic>Metaredlichia cylindrica</topic><topic>Morphology</topic><topic>Ontogeny</topic><topic>Original Article</topic><topic>Paleontology</topic><topic>Paleozoic</topic><topic>Phylogeny</topic><topic>Physical characteristics</topic><topic>Ramsay Limestone</topic><topic>Redlichia</topic><topic>Redlichiida</topic><topic>South Australia</topic><topic>Trilobita</topic><topic>Trilobitomorpha</topic><topic>Yorke Peninsula</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Holmes, James D.</creatorcontrib><creatorcontrib>Paterson, John R.</creatorcontrib><creatorcontrib>Jago, James B.</creatorcontrib><creatorcontrib>García-Bellido, Diego C.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Research Library (Alumni Edition)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Research Library Prep</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Research Library</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Research Library (Corporate)</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><collection>University of Michigan</collection><jtitle>Geological magazine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Holmes, James D.</au><au>Paterson, John R.</au><au>Jago, James B.</au><au>García-Bellido, Diego C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ontogeny of the trilobite Redlichia from the lower Cambrian (Series 2, Stage 4) Ramsay Limestone of South Australia</atitle><jtitle>Geological magazine</jtitle><addtitle>Geol. Mag</addtitle><date>2021-07-01</date><risdate>2021</risdate><volume>158</volume><issue>7</issue><spage>1209</spage><epage>1223</epage><pages>1209-1223</pages><issn>0016-7568</issn><eissn>1469-5081</eissn><abstract>Studies that reveal detailed information about trilobite growth, particularly early developmental stages, are crucial for improving our understanding of the phylogenetic relationships within this iconic group of fossil arthropods. Here we document an essentially complete ontogeny of the trilobite Redlichia cf. versabunda from the Cambrian Series 2 (late Stage 4) Ramsay Limestone of Yorke Peninsula in South Australia, including some of the best-preserved protaspides (the earliest biomineralized trilobite larval stage) known for any Cambrian trilobite. These protaspid stages exhibit similar morphological characteristics to many other taxa within the Suborder Redlichiina, especially to closely related species such as Metaredlichia cylindrica from the early Cambrian period of China. Morphological patterns observed across early developmental stages of different groups within the Order Redlichiida are discussed. Although redlichiine protaspides exhibit similar overall morphologies, certain ontogenetic characters within this suborder have potential phylogenetic signal, with different superfamilies characterized by unique trait combinations in these early growth stages.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/S0016756820001259</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0003-1922-9836</orcidid><orcidid>https://orcid.org/0000-0002-3059-1572</orcidid><orcidid>https://orcid.org/0000-0001-8804-2149</orcidid><orcidid>https://orcid.org/0000-0003-2947-3912</orcidid></addata></record> |
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| ispartof | Geological magazine, 2021-07, Vol.158 (7), p.1209-1223 |
| issn | 0016-7568 1469-5081 |
| language | eng |
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| subjects | Arthropoda Arthropods Australasia Australia Basins Cambrian Developmental stages Fossil animals Fossils invertebrate Larvae Limestone Lower Cambrian Marine invertebrates Metaredlichia cylindrica Morphology Ontogeny Original Article Paleontology Paleozoic Phylogeny Physical characteristics Ramsay Limestone Redlichia Redlichiida South Australia Trilobita Trilobitomorpha Yorke Peninsula |
| title | Ontogeny of the trilobite Redlichia from the lower Cambrian (Series 2, Stage 4) Ramsay Limestone of South Australia |
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