183 lines
12 KiB
XML
183 lines
12 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.462.6790" ID-GBIF-Dataset="73833a4d-b6aa-4f25-b8ed-23da833caa6e" ID-PMC="PMC4284429" ID-Pensoft-Pub="1313-2970-462-11" ID-PubMed="25589851" ID-ZBK="865205A26C7941319C255625F3D8C59B" ModsDocAuthor="" ModsDocDate="2014" ModsDocID="1313-2970-462-11" ModsDocOrigin="ZooKeys 462" ModsDocTitle="A new genus and species of Thyasiridae (Mollusca, Bivalvia) from deep-water, Beaufort Sea, northern Alaska" checkinTime="1451244986037" checkinUser="pensoft" docAuthor="Valentich-Scott, Paul, Powell, Charles L., II,, Lorenson, Thomas D. & Edwards, Brian E." docDate="2014" docId="B89D2D012E1F65174693B07DB4BD41CD" docLanguage="en" docName="ZooKeys 462: 11-26" docOrigin="ZooKeys 462" docSource="http://dx.doi.org/10.3897/zookeys.462.6790" docTitle="Wallerconcha sarae Valentich-Scott & C. L. Powell, sp. n." docType="treatment" docUuid="70B6274D-A766-48E3-B33E-4D353E78F69D" docUuidSource="ZooBank" docVersion="4" lastPageNumber="19" masterDocId="FFBDFF89186C8224FFB80725B102FFF8" masterDocTitle="A new genus and species of Thyasiridae (Mollusca, Bivalvia) from deep-water, Beaufort Sea, northern Alaska" masterLastPageNumber="26" masterPageNumber="11" pageNumber="14" updateTime="1668159714865" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>A new genus and species of Thyasiridae (Mollusca, Bivalvia) from deep-water, Beaufort Sea, northern Alaska</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Valentich-Scott, Paul</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Powell, Charles L.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>II,</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Lorenson, Thomas D.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Edwards, Brian E.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2014</mods:date>
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<mods:detail type="volume">
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<mods:number>462</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>11</mods:start>
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<mods:end>26</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.462.6790</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.462.6790</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-462-11</mods:identifier>
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<mods:identifier type="ZBK">865205A26C7941319C255625F3D8C59B</mods:identifier>
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<mods:identifier type="ZooBank">865205A26C7941319C255625F3D8C59B</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152056990" LSID="urn:lsid:zoobank.org:act:70B6274D-A766-48E3-B33E-4D353E78F69D" httpUri="http://treatment.plazi.org/id/B89D2D012E1F65174693B07DB4BD41CD" lastPageId="8" lastPageNumber="19" pageId="3" pageNumber="14">
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<subSubSection pageId="3" pageNumber="14" type="multiple">
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<paragraph pageId="3" pageNumber="14">Taxon classification Animalia Lucinoida Thyasiridae</paragraph>
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</subSubSection>
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<subSubSection pageId="3" pageNumber="14" type="nomenclature">
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<paragraph pageId="3" pageNumber="14">
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<taxonomicName LSID="http://zoobank.org/70B6274D-A766-48E3-B33E-4D353E78F69D" authority="Valentich-Scott & C. L. Powell" class="Bivalvia" family="Thyasiridae" genus="Wallerconcha" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Wallerconcha sarae" order="Lucinida" pageId="3" pageNumber="14" phylum="Mollusca" rank="species" species="sarae">Wallerconcha sarae Valentich-Scott & C.L. Powell</taxonomicName>
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<taxonomicNameLabel pageId="3" pageNumber="14">sp. n.</taxonomicNameLabel>
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Figure 3
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<normalizedToken originalValue="A–H">A-H</normalizedToken>
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, 7B
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</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="15" type="description">
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<paragraph pageId="4" pageNumber="15">
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<pageBreakToken pageId="4" pageNumber="15" start="start">Description</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="4" pageNumber="15">Shell shape. Shell subtrigonal, moderately thin, equivalved, highly inflated; anterior margin broadly rounded; posterior end subtruncate; umbo broadly rounded, strongly prosogyrate; dorsal margin strongly sloping on both sides of the umbo; escutcheon moderately narrow, moderately deep, well-defined; lunule absent. Maximum length 24 mm, maximum height 24 mm, maximum width 17 mm.</paragraph>
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<paragraph pageId="4" pageNumber="15">Sculpture and periostracum. Shell with closely spaced, irregular commarginal striae and ribs; shallow, narrow radial sulcus extends from posterior of the umbo to the posterior ventral margin; shallow radial depression from the umbo to the central ventral margin, forming a slight undulation along the ventral margin; periostracum thick, wrinkled, dehiscent, light to dark brown, silky.</paragraph>
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<paragraph pageId="4" pageNumber="15">Hinge. Hinge heavy, edentulous, or with minute tubercles under beaks; anterior section narrow; posterior section with wide lateral platform, supporting deeply sunken nymph; ligament external, deeply sunken, long, dark brown.</paragraph>
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<paragraph pageId="4" pageNumber="15">Adductor muscle and pallial scars - anterior adductor muscle scar large, long, wide, subelliptical, with irregular upper and lower margins, upper margin of scar concave near the center; posterior adductor muscle scar smaller, irregular ovate, with a pointed projection in juveniles; pallial line scalloped, without a sinus.</paragraph>
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<paragraph pageId="4" pageNumber="15">Interior - interior dirty white to gray; with faint radial crescent-shaped lines that extend from near the umbo to the near the ventral margin, lines have broad depressions between them near the central ventral margin.</paragraph>
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</subSubSection>
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<subSubSection pageId="4" pageNumber="15" type="type locality">
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<paragraph pageId="4" pageNumber="15">Type locality.</paragraph>
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<paragraph pageId="4" pageNumber="15">
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USA, Alaska, Beaufort Sea, Canning Seafloor Mound. Specifically,
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<geoCoordinate direction="north" orientation="latitude" precision="55" value="71.317">71.317°N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="55" value="-143.999">143.999°W</geoCoordinate>
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; 2,358 m water depth (ECS004 137, Core
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<normalizedToken originalValue="IP–">IP-</normalizedToken>
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1, section 3, 31 cm, 4.65 mbsf).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="17" pageId="5" pageNumber="16" type="type specimens">
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<paragraph pageId="5" pageNumber="16">
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<pageBreakToken pageId="5" pageNumber="16" start="start">Type</pageBreakToken>
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specimens.
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</paragraph>
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<paragraph pageId="5" pageNumber="16">
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Holotype - SBMNH 235481, 1 pair, length = 23.9 mm, height = 21.3 mm, width = 16.7 mm. Alaska, Beaufort Sea, Canning Seafloor Mound;
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<geoCoordinate direction="north" orientation="latitude" precision="55" value="71.317">71.317°N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="55" value="-143.999">143.999°W</geoCoordinate>
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; 2,358 m water depth (ECS004137, Core
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<normalizedToken originalValue="IP–">IP-</normalizedToken>
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1, section 3, 31 cm; 4.65 mbsf)
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</paragraph>
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<paragraph pageId="5" pageNumber="16">Paratype 1 - CAS paratype 72852</paragraph>
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<paragraph pageId="5" pageNumber="16">
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Alaska, Beaufort Sea, Canning Seafloor Mound;
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<geoCoordinate direction="north" orientation="latitude" precision="55" value="71.317">71.317°N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="55" value="-143.998">143.998°W</geoCoordinate>
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; 2,350 m water depth (ECS 004 122. Core 1
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<normalizedToken originalValue="GB–">GB-</normalizedToken>
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1 102 cm, 1.02 mbsf); length = 12.8 mm, height = 10.9 mm
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</paragraph>
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<paragraph pageId="5" pageNumber="16">Paratype 2 - LACMIP paratype 14470</paragraph>
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<paragraph pageId="5" pageNumber="16">
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Alaska, Beaufort Sea, Canning Seafloor Mound;
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<geoCoordinate direction="north" orientation="latitude" precision="55" value="71.317">71.317°N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="55" value="-143.999">143.999°W</geoCoordinate>
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; 2,358 m water depth (ECS004242, Core IP1, section 1, 52 cm, 2/2, 0.52 mbsf); length = 15.0 mm, height = 13.1 mm
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</paragraph>
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<paragraph pageId="5" pageNumber="16">Paratype 3 - SBMNH paratype 235613</paragraph>
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<paragraph pageId="5" pageNumber="16">
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Alaska, Beaufort Sea, Canning Seafloor Mound;
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<geoCoordinate direction="north" orientation="latitude" precision="55" value="71.317">71.317°N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="55" value="-143.998">143.998°W</geoCoordinate>
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; 2,350 m water depth (ESC004180, Core 1
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<normalizedToken originalValue="GB–">GB-</normalizedToken>
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1, 44 cm, 0.44 mbsf); length = 19.2 mm, height = 17.5 mm
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</paragraph>
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<paragraph pageId="6" pageNumber="17">
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<pageBreakToken pageId="6" pageNumber="17" start="start">Paratype</pageBreakToken>
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4 - SBMNH paratype 235614
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</paragraph>
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<paragraph pageId="6" pageNumber="17">
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Alaska, Beaufort Sea, Canning Seafloor Mound;
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<geoCoordinate direction="north" orientation="latitude" precision="55" value="71.317">71.317°N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="55" value="-143.998">143.998°W</geoCoordinate>
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; 2,350 m water depth (ESC004180, Core 1
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<normalizedToken originalValue="GB–">GB-</normalizedToken>
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1, 44 cm, 0.44 mbsf); length = 23.9 mm, height = 23.8 mm.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="6" pageNumber="17" type="etymology">
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<paragraph pageId="6" pageNumber="17">Etymology.</paragraph>
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<paragraph pageId="6" pageNumber="17">Named in honor of Sara Powell, of San Jose, California, daughter of Charles L. Powell.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="8" lastPageNumber="19" pageId="7" pageNumber="18" type="distribution">
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<paragraph pageId="7" pageNumber="18">
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<pageBreakToken pageId="7" pageNumber="18" start="start">Distribution</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="8" pageNumber="19">
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<taxonomicName class="Bivalvia" family="Thyasiridae" genus="Wallerconcha" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Wallerconcha sarae" order="Lucinida" pageId="8" pageNumber="19" phylum="Mollusca" rank="species" species="sarae">
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<pageBreakToken pageId="8" pageNumber="19" start="start">Wallerconcha</pageBreakToken>
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sarae
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</taxonomicName>
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is presently only known only from the region around the type locality; the Canning Seafloor Mound (
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<geoCoordinate direction="north" orientation="latitude" precision="5" value="71.3175">71.3175°N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="5" value="-143.9997">143.9997°W</geoCoordinate>
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), Beaufort Sea, Alaska, USA. Given the collection depth of 0.02-4.65 mbsf, we surmise this is a fossil species. However we cannot discount that it could still be living in the region.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="8" pageNumber="19" type="other specimens examined">
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<paragraph pageId="8" pageNumber="19">Other specimens examined.</paragraph>
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<paragraph pageId="8" pageNumber="19">
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Piston core: ESC 004112, Core 1P1, section 4, 15 cm, 4.65 mbsf (articulated specimen; frozen for further analysis), ECS 004137, Core 1P1, section 3, 31 cm, 181 mbsf (one articulate specimen (holotype Figure 3
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<normalizedToken originalValue="A–G">A-G</normalizedToken>
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), three larger fragments), ESC 004242, 1P1, sec. 1, 52 cm, 0.52 mbsf, (one left valve), ESC 004242, 1P1, sec. 1, 52-54 cm, 0.53 mbsf (seven large fragments), ECS 004242, 1P1, sec. 1, 52-54 cm, 0.53 mbsf (one fragment). Gravity Core: ESC 004115, Core 1GB1, 0.02 mbsf (left valve; used for chemical analysis), ESC 004122, 1GB1, 102 cm, 1.02 mbsf (one small left valve), CS 004180, Core 1GB1, 44 cm, 0.44 mbsf (one articulate specimen, one left valve, two fragments). EESC 004257, Core 1TC1, section 1, 72 cm, 0.72mbsf (two larger fragments).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |