treatments-xml/data/03/DF/C8/03DFC827FFE5FFC7FCB8F531FF3BF9FE.xml
2024-06-21 12:22:17 +02:00

187 lines
26 KiB
XML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<document ID-DOI="10.1111/j.1096-3642.2004.00121.x" ID-GBIF-Dataset="b6188841-cdc6-42fa-bb29-ac39d113dd72" ID-ISSN="0024-4082" ID-Zenodo-Dep="4687299" checkinTime="1618408847792" checkinUser="carolina" docAuthor="Dzik, Jerzy, Ivantsov, Andrey Yu. &amp; Deulin, Yuriy V." docDate="2004" docId="03DFC827FFE5FFC7FCB8F531FF3BF9FE" docLanguage="en" docName="ZoolJLinnSoc.142.83-90.pdf" docOrigin="Zoological Journal of the Linnean Society 142 (1)" docSource="https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2004.00121.x" docStyle="DocumentStyle:0DD8C314D74634CE09062A86991413F8.1:ZoolJLinnSoc.2002-2009.journal_article" docStyleId="0DD8C314D74634CE09062A86991413F8" docStyleName="ZoolJLinnSoc.2002-2009.journal_article" docStyleVersion="1" docTitle="Archangeliphausia SPINOSA 2004, SP. NOV." docType="treatment" docVersion="8" lastPageNumber="87" masterDocId="FFE6B05FFFE6FFC2FFC2F13BFFE3FF84" masterDocTitle="Oldest shrimp and associated phyllocarid from the Lower Devonian of northern Russia" masterLastPageNumber="90" masterPageNumber="83" pageNumber="86" updateTime="1638552323672" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Oldest shrimp and associated phyllocarid from the Lower Devonian of northern Russia</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Dzik, Jerzy</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Ivantsov, Andrey Yu.</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Deulin, Yuriy V.</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>Zoological Journal of the Linnean Society</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2004</mods:date>
<mods:detail type="pubDate">
<mods:number>2004-09-30</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>142</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>1</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>83</mods:start>
<mods:end>90</mods:end>
</mods:extent>
</mods:part>
</mods:relatedItem>
<mods:location>
<mods:url>https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2004.00121.x</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">10.1111/j.1096-3642.2004.00121.x</mods:identifier>
<mods:identifier type="GBIF-Dataset">b6188841-cdc6-42fa-bb29-ac39d113dd72</mods:identifier>
<mods:identifier type="ISSN">0024-4082</mods:identifier>
<mods:identifier type="Zenodo-Dep">4687299</mods:identifier>
</mods:mods>
<treatment ID-DOI="http://doi.org/10.5281/zenodo.5700761" ID-GBIF-Taxon="190875561" ID-Zenodo-Dep="5700761" LSID="urn:lsid:plazi:treatment:03DFC827FFE5FFC7FCB8F531FF3BF9FE" httpUri="http://treatment.plazi.org/id/03DFC827FFE5FFC7FCB8F531FF3BF9FE" lastPageId="5" lastPageNumber="87" pageId="3" pageNumber="86">
<subSubSection box="[890,1365,1034,1058]" pageId="3" pageNumber="86" type="nomenclature">
<paragraph blockId="3.[890,1365,1034,1090]" box="[890,1365,1034,1058]" pageId="3" pageNumber="86">
<heading box="[890,1365,1034,1058]" centered="true" fontSize="9" level="2" pageId="3" pageNumber="86" reason="4">
<taxonomicName authority="SPINOSA" authorityName="SPINOSA" authorityYear="2004" box="[890,1257,1034,1058]" class="Malacostraca" genus="Archangeliphausia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Eocaridacea" pageId="3" pageNumber="86" phylum="Arthropoda" rank="genus" status="sp. nov.">ARCHANGELIPHAUSIA SPINOSA</taxonomicName>
<emphasis bold="true" box="[1265,1365,1034,1058]" pageId="3" pageNumber="86">
<taxonomicNameLabel box="[1265,1365,1034,1058]" pageId="3" pageNumber="86" rank="species">SP. NOV.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection box="[1043,1212,1066,1090]" pageId="3" pageNumber="86" type="description">
<paragraph blockId="3.[890,1365,1034,1090]" box="[1043,1212,1066,1090]" pageId="3" pageNumber="86">
(
<figureCitation box="[1051,1159,1066,1090]" captionStart-0="Figure 2" captionStart-1="Figure 3" captionStart-2="Figure 4" captionStartId-0="4.[143,221,1105,1124]" captionStartId-1="5.[156,234,1161,1180]" captionStartId-2="6.[143,221,751,770]" captionTargetBox-0="[147,1417,197,1073]" captionTargetBox-1="[160,1430,196,1129]" captionTargetBox-2="[143,1424,196,717]" captionTargetId-0="figure-410@4.[147,1418,197,1074]" captionTargetId-1="figure-352@5.[160,1431,196,1129]" captionTargetId-2="figure-55@6.[143,1424,196,717]" captionTargetPageId-0="4" captionTargetPageId-1="5" captionTargetPageId-2="6" captionText-0="Figure 2. Archangeliphausia spinosa sp. nov. A, holotype (PIN 4983/1a: right) and associated specimen (PIN 4983/1b). B, largest specimen found (PIN 4983/35), with relatively thick cuticle. C, juvenile specimen (PIN 4983/37). E, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28; see also Fig. 4C). D, posterior part of abdomen with well preserved 6th pleosomite and telson (PIN 4983/8)." captionText-1="Figure 3. Archangeliphausia spinosa sp. nov. A, specimen with oblique dorsoventrally compressed carapace and well preserved scaphocerite of 2nd antenna (PIN 4983/2). B, specimens with partially preserved telson and uropods (PIN 4983/ 32a, b). C, specimens with partially preserved telson and uropods (PIN 4983/12a, b). D, posterior part of abdomen with well preserved 6th pleosomite (PIN 4983/4a). E, posterior part of abdomen with well preserved pleura (PIN 4983/39). F, dorsoventrally compressed 6th pleosomite and partial uropods (PIN 4983/36). G, specimen with well preserved spinose pleura (PIN 4983/31)." captionText-2="Figure 4. Archangeliphausia spinosa sp. nov. A, holotype (PIN 3993/1a). B, specimen PIN 4983/1b. C, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28). D, specimen PIN 4983/1c." figureDoi-0="http://doi.org/10.5281/zenodo.4687303" figureDoi-1="http://doi.org/10.5281/zenodo.4687305" figureDoi-2="http://doi.org/10.5281/zenodo.5684681" httpUri-0="https://zenodo.org/record/4687303/files/figure.png" httpUri-1="https://zenodo.org/record/4687305/files/figure.png" httpUri-2="https://zenodo.org/record/5684681/files/figure.png" pageId="3" pageNumber="86">FIGS 24</figureCitation>
, 5B)
</paragraph>
</subSubSection>
<subSection lastPageId="5" lastPageNumber="88" pageId="3" pageNumber="86" type="multiple">
<subSubSection pageId="3" pageNumber="86" type="materials_examined">
<paragraph blockId="3.[820,1367,1115,1137]" box="[820,1367,1115,1137]" pageId="3" pageNumber="86">
<heading box="[820,1367,1115,1137]" centered="true" fontSize="9" level="2" pageId="3" pageNumber="86" reason="8">
<materialsCitation ID-GBIF-Occurrence="3413075302" box="[820,1367,1115,1137]" pageId="3" pageNumber="86" typeStatus="holotype">
<emphasis box="[820,926,1115,1136]" italics="true" pageId="3" pageNumber="86">
<typeStatus box="[820,921,1115,1136]" pageId="3" pageNumber="86">Holotype</typeStatus>
:
</emphasis>
Specimen PIN 4983/1a (
<figureCitation box="[1218,1307,1115,1137]" captionStart="Figure 2" captionStartId="4.[143,221,1105,1124]" captionTargetBox="[147,1417,197,1073]" captionTargetId="figure-410@4.[147,1418,197,1074]" captionTargetPageId="4" captionText="Figure 2. Archangeliphausia spinosa sp. nov. A, holotype (PIN 4983/1a: right) and associated specimen (PIN 4983/1b). B, largest specimen found (PIN 4983/35), with relatively thick cuticle. C, juvenile specimen (PIN 4983/37). E, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28; see also Fig. 4C). D, posterior part of abdomen with well preserved 6th pleosomite and telson (PIN 4983/8)." figureDoi="http://doi.org/10.5281/zenodo.4687303" httpUri="https://zenodo.org/record/4687303/files/figure.png" pageId="3" pageNumber="86">Figs 2A</figureCitation>
,
<figureCitation box="[1320,1354,1115,1137]" captionStart="Figure 4" captionStartId="6.[143,221,751,770]" captionTargetBox="[143,1424,196,717]" captionTargetId="figure-55@6.[143,1424,196,717]" captionTargetPageId="6" captionText="Figure 4. Archangeliphausia spinosa sp. nov. A, holotype (PIN 3993/1a). B, specimen PIN 4983/1b. C, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28). D, specimen PIN 4983/1c." figureDoi="http://doi.org/10.5281/zenodo.5684681" httpUri="https://zenodo.org/record/5684681/files/figure.png" pageId="3" pageNumber="86">4B</figureCitation>
).
</materialsCitation>
</heading>
</paragraph>
<paragraph blockId="3.[820,1435,1161,1275]" pageId="3" pageNumber="86">
<emphasis box="[820,1117,1161,1182]" italics="true" pageId="3" pageNumber="86">
<typeStatus box="[820,873,1161,1182]" pageId="3" pageNumber="86">Type</typeStatus>
horizon and locality:
</emphasis>
Dark-grey claystone from a depth of 4255.0
<quantity box="[1034,1140,1191,1213]" metricMagnitude="3" metricUnit="m" metricValue="4.2627" pageId="3" pageNumber="86" unit="m" value="4262.7">4262.7 m</quantity>
, Lower Devonian (Lochkovian?). Borehole Medynskoye 1, Timan-Pechora region of polar
<collectingCountry box="[996,1077,1253,1275]" name="Russia" pageId="3" pageNumber="86">Russia</collectingCountry>
.
</paragraph>
<paragraph blockId="3.[820,1424,1299,1321]" box="[820,1424,1299,1321]" pageId="3" pageNumber="86">
<emphasis box="[820,925,1299,1320]" italics="true" pageId="3" pageNumber="86">Material:</emphasis>
Sixty more or less complete compressions.
</paragraph>
</subSubSection>
<subSubSection box="[820,1148,1345,1367]" pageId="3" pageNumber="86" type="diagnosis">
<paragraph blockId="3.[820,1148,1345,1367]" box="[820,1148,1345,1367]" pageId="3" pageNumber="86">
<emphasis box="[820,939,1345,1366]" italics="true" pageId="3" pageNumber="86">Diagnosis:</emphasis>
As for the genus.
</paragraph>
</subSubSection>
<subSubSection lastPageId="5" lastPageNumber="88" pageId="3" pageNumber="86" type="description">
<paragraph blockId="3.[820,1436,1391,1903]" pageId="3" pageNumber="86">
<emphasis box="[820,956,1391,1412]" italics="true" pageId="3" pageNumber="86">Description:</emphasis>
The largest specimen, PIN 4983/35, probably belongs to this species (
<figureCitation box="[1181,1265,1421,1443]" captionStart="Figure 2" captionStartId="4.[143,221,1105,1124]" captionTargetBox="[147,1417,197,1073]" captionTargetId="figure-410@4.[147,1418,197,1074]" captionTargetPageId="4" captionText="Figure 2. Archangeliphausia spinosa sp. nov. A, holotype (PIN 4983/1a: right) and associated specimen (PIN 4983/1b). B, largest specimen found (PIN 4983/35), with relatively thick cuticle. C, juvenile specimen (PIN 4983/37). E, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28; see also Fig. 4C). D, posterior part of abdomen with well preserved 6th pleosomite and telson (PIN 4983/8)." figureDoi="http://doi.org/10.5281/zenodo.4687303" httpUri="https://zenodo.org/record/4687303/files/figure.png" pageId="3" pageNumber="86">Fig. 2B</figureCitation>
). It measures
<quantity box="[820,919,1452,1474]" metricMagnitude="-2" metricUnit="m" metricValue="1.25" pageId="3" pageNumber="86" unit="mm" value="12.5">12.5 mm</quantity>
in length from the carapace rostrum to the end of the telson. The smallest reasonably complete specimen is PIN 4983/37 (
<figureCitation box="[1124,1207,1513,1535]" captionStart="Figure 2" captionStartId="4.[143,221,1105,1124]" captionTargetBox="[147,1417,197,1073]" captionTargetId="figure-410@4.[147,1418,197,1074]" captionTargetPageId="4" captionText="Figure 2. Archangeliphausia spinosa sp. nov. A, holotype (PIN 4983/1a: right) and associated specimen (PIN 4983/1b). B, largest specimen found (PIN 4983/35), with relatively thick cuticle. C, juvenile specimen (PIN 4983/37). E, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28; see also Fig. 4C). D, posterior part of abdomen with well preserved 6th pleosomite and telson (PIN 4983/8)." figureDoi="http://doi.org/10.5281/zenodo.4687303" httpUri="https://zenodo.org/record/4687303/files/figure.png" pageId="3" pageNumber="86">Fig. 2C</figureCitation>
) with an estimated length of
<emphasis box="[925,936,1545,1566]" italics="true" pageId="3" pageNumber="86">c</emphasis>
.
<quantity box="[948,1037,1544,1566]" metricMagnitude="-3" metricUnit="m" metricValue="6.5" pageId="3" pageNumber="86" unit="mm" value="6.5">6.5 mm</quantity>
. The size of most specimens is close to the mean between these values. As the specimens are mostly complete skeletons, not exuvia, the dominance of larger individuals may reflect the structure of the original population at its repeated catastrophic extinctions.
</paragraph>
<paragraph blockId="3.[820,1436,1391,1903]" lastBlockId="4.[143,759,1268,1903]" lastPageId="4" lastPageNumber="87" pageId="3" pageNumber="86">
Three basal segments of the 1st antenna are preserved in specimens PIN 4983/18 and 25. The proximal segment is approximately three times longer than the third one, while the second segment is intermediate in length (
<figureCitation box="[990,1074,1851,1873]" captionStart="Figure 5" captionStartId="6.[143,221,1883,1902]" captionTargetBox="[154,1410,920,1827]" captionTargetId="figure-89@6.[162,1411,914,1848]" captionTargetPageId="6" captionText="Figure 5. Restoration of (A) Pechoracaris aculicauda sp. nov. and (B) Archangeliphausia spinosa sp. nov." figureDoi="http://doi.org/10.5281/zenodo.4687309" httpUri="https://zenodo.org/record/4687309/files/figure.png" pageId="3" pageNumber="86">Fig. 5B</figureCitation>
). Of the 2nd antenna only the scaphocerite is preserved in a few specimens, the most complete being those of PIN 4983/2, 18, and 24 (
<figureCitation box="[151,235,1299,1321]" captionStart="Figure 3" captionStartId="5.[156,234,1161,1180]" captionTargetBox="[160,1430,196,1129]" captionTargetId="figure-352@5.[160,1431,196,1129]" captionTargetPageId="5" captionText="Figure 3. Archangeliphausia spinosa sp. nov. A, specimen with oblique dorsoventrally compressed carapace and well preserved scaphocerite of 2nd antenna (PIN 4983/2). B, specimens with partially preserved telson and uropods (PIN 4983/ 32a, b). C, specimens with partially preserved telson and uropods (PIN 4983/12a, b). D, posterior part of abdomen with well preserved 6th pleosomite (PIN 4983/4a). E, posterior part of abdomen with well preserved pleura (PIN 4983/39). F, dorsoventrally compressed 6th pleosomite and partial uropods (PIN 4983/36). G, specimen with well preserved spinose pleura (PIN 4983/31)." figureDoi="http://doi.org/10.5281/zenodo.4687305" httpUri="https://zenodo.org/record/4687305/files/figure.png" pageId="4" pageNumber="87">Fig. 3A</figureCitation>
). The scaphocerite is oval, represented only by an organic film on the rock surface and its margins are not easy to trace.
</paragraph>
<caption ID-DOI="http://doi.org/10.5281/zenodo.4687303" ID-Zenodo-Dep="4687303" httpUri="https://zenodo.org/record/4687303/files/figure.png" pageId="4" pageNumber="87" startId="4.[143,221,1105,1124]" targetBox="[147,1417,197,1073]" targetPageId="4">
<paragraph blockId="4.[143,1423,1105,1213]" pageId="4" pageNumber="87">
<emphasis bold="true" box="[143,670,1105,1125]" pageId="4" pageNumber="87">
Figure 2.
<taxonomicName authority="Dzik &amp; Ivantsov &amp; Deulin, 2004" authorityName="Dzik &amp; Ivantsov &amp; Deulin" authorityYear="2004" box="[259,579,1105,1125]" class="Malacostraca" genus="Archangeliphausia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Eocaridacea" pageId="4" pageNumber="87" phylum="Arthropoda" rank="species" species="spinosa" status="sp. nov.">
<emphasis bold="true" box="[259,579,1105,1125]" italics="true" pageId="4" pageNumber="87">Archangeliphausia spinosa</emphasis>
</taxonomicName>
<taxonomicNameLabel box="[585,670,1106,1125]" pageId="4" pageNumber="87" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
A, holotype (PIN 4983/1a: right) and associated specimen (PIN 4983/1b). B, largest specimen found (PIN 4983/35), with relatively thick cuticle. C, juvenile specimen (PIN 4983/37). E, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28; see also Fig. 4C). D, posterior part of abdomen with well preserved 6th pleosomite and telson (PIN 4983/8).
</paragraph>
</caption>
<paragraph blockId="4.[143,759,1268,1903]" pageId="4" pageNumber="87">
The carapace has a sharp, relatively short rostrum, the ocular sinus being clearly visible in specimens PIN 4983/24A and B. The lower margin of the carapace, well preserved in
<typeStatus box="[345,442,1483,1505]" pageId="4" pageNumber="87">holotype</typeStatus>
specimen PIN 4983/1a, has a very narrow band (
<figureCitation box="[388,478,1513,1535]" captionStart="Figure 2" captionStartId="4.[143,221,1105,1124]" captionTargetBox="[147,1417,197,1073]" captionTargetId="figure-410@4.[147,1418,197,1074]" captionTargetPageId="4" captionText="Figure 2. Archangeliphausia spinosa sp. nov. A, holotype (PIN 4983/1a: right) and associated specimen (PIN 4983/1b). B, largest specimen found (PIN 4983/35), with relatively thick cuticle. C, juvenile specimen (PIN 4983/37). E, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28; see also Fig. 4C). D, posterior part of abdomen with well preserved 6th pleosomite and telson (PIN 4983/8)." figureDoi="http://doi.org/10.5281/zenodo.4687303" httpUri="https://zenodo.org/record/4687303/files/figure.png" pageId="4" pageNumber="87">Figs 2A</figureCitation>
,
<figureCitation box="[492,526,1513,1535]" captionStart="Figure 4" captionStartId="6.[143,221,751,770]" captionTargetBox="[143,1424,196,717]" captionTargetId="figure-55@6.[143,1424,196,717]" captionTargetPageId="6" captionText="Figure 4. Archangeliphausia spinosa sp. nov. A, holotype (PIN 3993/1a). B, specimen PIN 4983/1b. C, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28). D, specimen PIN 4983/1c." figureDoi="http://doi.org/10.5281/zenodo.5684681" httpUri="https://zenodo.org/record/5684681/files/figure.png" pageId="4" pageNumber="87">4A</figureCitation>
). Being thicker, this band would have strengthened the cuticle. It is calcified and shows openings of pore canals; the posterior margin is hardly discernible except in the isolated dorsoventrally compressed carapace of specimen PIN 4983/43.
</paragraph>
<paragraph blockId="4.[143,759,1268,1903]" lastBlockId="4.[807,1423,1268,1903]" pageId="4" pageNumber="87">
Laterally compressed sternites of thoracic segments are preserved in many specimens. The boundaries between the segments are discernible some distance dorsally of the sternites. All segments except for the first are recognizable in the specimen associated with the
<typeStatus box="[188,285,1851,1873]" pageId="4" pageNumber="87">holotype</typeStatus>
(
<figureCitation box="[300,390,1851,1873]" captionStart="Figure 2" captionStartId="4.[143,221,1105,1124]" captionTargetBox="[147,1417,197,1073]" captionTargetId="figure-410@4.[147,1418,197,1074]" captionTargetPageId="4" captionText="Figure 2. Archangeliphausia spinosa sp. nov. A, holotype (PIN 4983/1a: right) and associated specimen (PIN 4983/1b). B, largest specimen found (PIN 4983/35), with relatively thick cuticle. C, juvenile specimen (PIN 4983/37). E, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28; see also Fig. 4C). D, posterior part of abdomen with well preserved 6th pleosomite and telson (PIN 4983/8)." figureDoi="http://doi.org/10.5281/zenodo.4687303" httpUri="https://zenodo.org/record/4687303/files/figure.png" pageId="4" pageNumber="87">Figs 2A</figureCitation>
,
<figureCitation box="[402,436,1851,1873]" captionStart="Figure 4" captionStartId="6.[143,221,751,770]" captionTargetBox="[143,1424,196,717]" captionTargetId="figure-55@6.[143,1424,196,717]" captionTargetPageId="6" captionText="Figure 4. Archangeliphausia spinosa sp. nov. A, holotype (PIN 3993/1a). B, specimen PIN 4983/1b. C, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28). D, specimen PIN 4983/1c." figureDoi="http://doi.org/10.5281/zenodo.5684681" httpUri="https://zenodo.org/record/5684681/files/figure.png" pageId="4" pageNumber="87">4B</figureCitation>
). They disappear at approximately half the height of the body, which probably corresponds to the limit of connection of the body with the carapace.
</paragraph>
<paragraph blockId="4.[807,1423,1268,1903]" pageId="4" pageNumber="87">No remnants of the apparently weakly calcified thoracopods are preserved. Some faint marks may correspond to pleopods, but they are completely undefined morphologically.</paragraph>
<paragraph blockId="4.[807,1423,1268,1903]" pageId="4" pageNumber="87">
The pleosomites increase gradually in length posteriorly, the 6th pleomere being very much longer than the preceding ones. Their pleura are somewhat expanded posteriorly to form oval lobes. The lobe of the 5th pleuron appears to extend almost to the midlength of the 6th pleosomite. All pleura bear sharp spines at their ventral tips, best preserved in specimens PIN 4983/31 and 24b (
<figureCitation box="[1137,1224,1667,1689]" captionStart="Figure 3" captionStartId="5.[156,234,1161,1180]" captionTargetBox="[160,1430,196,1129]" captionTargetId="figure-352@5.[160,1431,196,1129]" captionTargetPageId="5" captionText="Figure 3. Archangeliphausia spinosa sp. nov. A, specimen with oblique dorsoventrally compressed carapace and well preserved scaphocerite of 2nd antenna (PIN 4983/2). B, specimens with partially preserved telson and uropods (PIN 4983/ 32a, b). C, specimens with partially preserved telson and uropods (PIN 4983/12a, b). D, posterior part of abdomen with well preserved 6th pleosomite (PIN 4983/4a). E, posterior part of abdomen with well preserved pleura (PIN 4983/39). F, dorsoventrally compressed 6th pleosomite and partial uropods (PIN 4983/36). G, specimen with well preserved spinose pleura (PIN 4983/31)." figureDoi="http://doi.org/10.5281/zenodo.4687305" httpUri="https://zenodo.org/record/4687305/files/figure.png" pageId="4" pageNumber="87">Fig. 3G</figureCitation>
).
</paragraph>
<paragraph blockId="4.[807,1423,1268,1903]" pageId="4" pageNumber="87">
The 6th pleosomite has almost parallel sides when, as in PIN 4983/36, compressed dorsoventrally (
<figureCitation box="[815,896,1759,1781]" captionStart="Figure 3" captionStartId="5.[156,234,1161,1180]" captionTargetBox="[160,1430,196,1129]" captionTargetId="figure-352@5.[160,1431,196,1129]" captionTargetPageId="5" captionText="Figure 3. Archangeliphausia spinosa sp. nov. A, specimen with oblique dorsoventrally compressed carapace and well preserved scaphocerite of 2nd antenna (PIN 4983/2). B, specimens with partially preserved telson and uropods (PIN 4983/ 32a, b). C, specimens with partially preserved telson and uropods (PIN 4983/12a, b). D, posterior part of abdomen with well preserved 6th pleosomite (PIN 4983/4a). E, posterior part of abdomen with well preserved pleura (PIN 4983/39). F, dorsoventrally compressed 6th pleosomite and partial uropods (PIN 4983/36). G, specimen with well preserved spinose pleura (PIN 4983/31)." figureDoi="http://doi.org/10.5281/zenodo.4687305" httpUri="https://zenodo.org/record/4687305/files/figure.png" pageId="4" pageNumber="87">Fig. 3F</figureCitation>
). There is a kind of hinge connection with the basal segment of the uropods.
</paragraph>
<paragraph blockId="4.[807,1423,1268,1903]" lastBlockId="5.[156,772,1391,1658]" lastPageId="5" lastPageNumber="88" pageId="4" pageNumber="87">
The telson is best preserved in PIN 4983/28 (
<figureCitation box="[815,904,1851,1873]" captionStart="Figure 2" captionStartId="4.[143,221,1105,1124]" captionTargetBox="[147,1417,197,1073]" captionTargetId="figure-410@4.[147,1418,197,1074]" captionTargetPageId="4" captionText="Figure 2. Archangeliphausia spinosa sp. nov. A, holotype (PIN 4983/1a: right) and associated specimen (PIN 4983/1b). B, largest specimen found (PIN 4983/35), with relatively thick cuticle. C, juvenile specimen (PIN 4983/37). E, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28; see also Fig. 4C). D, posterior part of abdomen with well preserved 6th pleosomite and telson (PIN 4983/8)." figureDoi="http://doi.org/10.5281/zenodo.4687303" httpUri="https://zenodo.org/record/4687303/files/figure.png" pageId="4" pageNumber="87">Figs 2E</figureCitation>
,
<figureCitation box="[919,953,1851,1873]" captionStart="Figure 4" captionStartId="6.[143,221,751,770]" captionTargetBox="[143,1424,196,717]" captionTargetId="figure-55@6.[143,1424,196,717]" captionTargetPageId="6" captionText="Figure 4. Archangeliphausia spinosa sp. nov. A, holotype (PIN 3993/1a). B, specimen PIN 4983/1b. C, specimen with dorsoventrally compressed telson and uropods (PIN 4983/28). D, specimen PIN 4983/1c." figureDoi="http://doi.org/10.5281/zenodo.5684681" httpUri="https://zenodo.org/record/5684681/files/figure.png" pageId="4" pageNumber="87">4C</figureCitation>
), although its parts are recognizable in several other specimens. Its sides are gently convex but almost parallel to each other. The posterior margin bears about eight indistinct indentations probably corresponding to bristle bases. The surface, as preserved in some stronger sclerotized fragmentary specimens (e.g. PIN 4983/32;
<figureCitation box="[371,453,1513,1536]" captionStart="Figure 3" captionStartId="5.[156,234,1161,1180]" captionTargetBox="[160,1430,196,1129]" captionTargetId="figure-352@5.[160,1431,196,1129]" captionTargetPageId="5" captionText="Figure 3. Archangeliphausia spinosa sp. nov. A, specimen with oblique dorsoventrally compressed carapace and well preserved scaphocerite of 2nd antenna (PIN 4983/2). B, specimens with partially preserved telson and uropods (PIN 4983/ 32a, b). C, specimens with partially preserved telson and uropods (PIN 4983/12a, b). D, posterior part of abdomen with well preserved 6th pleosomite (PIN 4983/4a). E, posterior part of abdomen with well preserved pleura (PIN 4983/39). F, dorsoventrally compressed 6th pleosomite and partial uropods (PIN 4983/36). G, specimen with well preserved spinose pleura (PIN 4983/31)." figureDoi="http://doi.org/10.5281/zenodo.4687305" httpUri="https://zenodo.org/record/4687305/files/figure.png" pageId="5" pageNumber="88">Fig. 3B</figureCitation>
), is externally smooth. The rami of the uropods were strongly sclerotized only along their external margins. This prevents delineation of their shapes, but they were probably rather wide.
</paragraph>
</subSubSection>
</subSection>
</treatment>
</document>