<documentid="4FB1C2231C63BD83281CD74E1A4A02C7"ID-CLB-Dataset="298344"ID-DOI="10.5852/ejt.2024.935.2557"ID-GBIF-Dataset="b9f405d9-04c7-4cfe-9f28-b6edc3416cb0"ID-ISSN="2118-9773"ID-Zenodo-Dep="11526096"ID-ZooBank="6C66A1E4-7EA4-45B7-B261-5D3ED749568E"IM.bibliography_approvedBy="valdenar"IM.illustrations_approvedBy="valdenar"IM.materialsCitations_approvedBy="valdenar"IM.metadata_approvedBy="felipe"IM.tables_requiresApprovalFor="GgImagineBatch"IM.taxonomicNames_approvedBy="valdenar"IM.treatments_approvedBy="valdenar"checkinTime="1717844083798"checkinUser="plazi"docAuthor="Lin, Chien-Hsiang, Steurbaut, Etienne & Nolf, Dirk"docDate="2024"docId="03971F35FFF1FFB699662A0FFC84FCCA"docLanguage="en"docName="EJT.2024.935.203-240.pdf"docOrigin="European Journal of Taxonomy 935"docSource="https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2557/11559"docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1"docStyleId="EF2B578F1D15862ADE45B0C07C620911"docStyleName="EJT.2018-.journal_article.type1"docStyleVersion="14"docTitle="Waitakia dorsogibbosa Lin & Steurbaut & Nolf 2024, sp. nov."docType="treatment"docUuid="946D0B8E-FDC0-4DA4-8A24-44CBBE0F9BA0"docUuidSource="ZooBank"docVersion="3"lastPageNumber="225"masterDocId="FFAE674DFFE4FFA09B062942FFADFFE2"masterDocTitle="Early Eocene fish otoliths from the eastern and southern USA"masterLastPageNumber="240"masterPageNumber="203"pageNumber="224"updateTime="1718049141783"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-4.0"zenodo-license-figures="CC-BY-4.0"zenodo-license-treatments="UNSPECIFIED">
<mods:affiliationid="295C36014DBD3231475AC040CF3381B8">Biodiversity Research Center, Academia Sinica, 128 Academia Road, Seca 2, Nankang, Taipei 11529, Taiwan.</mods:affiliation>
<mods:affiliationid="CDD59BC0A7F79CC969537845BBCFA5DA">Royal Belgian Institute of Natural Sciences, 29 Vautier Street, 1000 Brussels, Belgium. & Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200 E, 3001 Leuven, Belgium.</mods:affiliation>
<mods:affiliationid="4028512ABC263DD280B25539AB2A2B43">Royal Belgian Institute of Natural Sciences, 29 Vautier Street, 1000 Brussels, Belgium.</mods:affiliation>
<taxonomicNameid="4C3ED5A0FFF1FFB599662A0FFCDFFC8A"authority="Lin & Steurbaut & Nolf, 2024"authorityName="Lin & Steurbaut & Nolf"authorityYear="2024"box="[608,882,845,872]"class="Actinopterygii"family="Percophidae"genus="Waitakia"higherTaxonomySource="GBIF"kingdom="Animalia"order="Perciformes"pageId="21"pageNumber="224"phylum="Chordata"rank="species"species="dorsogibbosa"status="sp. nov.">
<figureCitationid="1305B2A6FFF1FFB599DB2AD2FCFBFC49"box="[733,854,912,939]"captionStart="Fig"captionStartId="22.[189,232,1821,1847]"captionTargetBox="[189,1398,853,1797]"captionTargetId="figure-207@22.[189,1398,853,1797]"captionTargetPageId="22"captionText="Fig. 9. Fish otoliths from the US lower Eocene formations. A–C. Preophidion arcuatus (Stinton, 1966), Cave Branch, Bashi Fm.,Alabama (IRSNB P 10750 to P 10752). D. Centroberyx sp., Hatchetigbee Bluff, Hatchetigbee Fm., Alabama (IRSNB P 10753). E. Bothidae indet., Ridge Creek, Reklaw Fm., Texas (IRSNB P 10754). F–G. Waitakia dorsogibbosa sp. nov. F. Pamunkey River, Hanovertown, Potapaco Member, Virginia, holotype (IRSNB P 10755). G. Piscataway Creek, Thrift Road ravine, Potapaco Member, Maryland, paratype (IRSNB P 10756). 1 = ventral view; 2 = inner view. Scale bars = 1 mm."figureDoi="http://doi.org/10.5281/zenodo.11526114"httpUri="https://zenodo.org/record/11526114/files/figure.png"pageId="21"pageNumber="224">Fig. 9F–G</figureCitation>
<materialsCitationid="3B56A47EFFF1FFB59BEC2C7EFE44FA7B"collectionCode="IRSNB"country="United States of America"county="Left otolith"location="Hanovertown"municipality="Pamunkey River"pageId="21"pageNumber="224"specimenCode="P 10755"specimenCount="1"stateProvince="Virginia"typeStatus="holotype">
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<locationid="8EE1F8F8FFF1FFB59F902C1CFADFFA95"LSID="urn:lsid:plazi:treatment:03971F35FFF1FFB699662A0FFC84FCCA:8EE1F8F8FFF1FFB59F902C1CFADFFA95"box="[1174,1394,1373,1400]"country="United States of America"county="Left otolith"municipality="Pamunkey River"name="Potapaco Member"pageId="21"pageNumber="224"stateProvince="Virginia">Potapaco Member</location>
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<figureCitationid="1305B2A6FFF1FFB59BB92C3DFEBAFA7B"box="[191,279,1407,1433]"captionStart="Fig"captionStartId="22.[189,232,1821,1847]"captionTargetBox="[189,1398,853,1797]"captionTargetId="figure-207@22.[189,1398,853,1797]"captionTargetPageId="22"captionText="Fig. 9. Fish otoliths from the US lower Eocene formations. A–C. Preophidion arcuatus (Stinton, 1966), Cave Branch, Bashi Fm.,Alabama (IRSNB P 10750 to P 10752). D. Centroberyx sp., Hatchetigbee Bluff, Hatchetigbee Fm., Alabama (IRSNB P 10753). E. Bothidae indet., Ridge Creek, Reklaw Fm., Texas (IRSNB P 10754). F–G. Waitakia dorsogibbosa sp. nov. F. Pamunkey River, Hanovertown, Potapaco Member, Virginia, holotype (IRSNB P 10755). G. Piscataway Creek, Thrift Road ravine, Potapaco Member, Maryland, paratype (IRSNB P 10756). 1 = ventral view; 2 = inner view. Scale bars = 1 mm."figureDoi="http://doi.org/10.5281/zenodo.11526114"httpUri="https://zenodo.org/record/11526114/files/figure.png"pageId="21"pageNumber="224">Fig. 9F</figureCitation>
;
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<specimenCodeid="DB980658FFF1FFB59A872C3DFE48FA7B"box="[385,485,1406,1433]"collectionCode="IRSNB"country="Belgium"httpUri="http://grbio.org/cool/c7r2-61q8"name="Institut Royal des Sciences Naturelles de Belgique"pageId="21"pageNumber="224">P 10755</specimenCode>
<materialsCitationid="3B56A47EFFF1FFB59BEC2CFDFDCEF9FE"collectionCode="IRSNB"country="United States of America"county="Piscataway Creek"location="Potapaco Member"municipality="Thrift Road"pageId="21"pageNumber="224"specimenCode="P 10756"specimenCount="1"stateProvince="Maryland"typeStatus="paratype">
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<figureCitationid="1305B2A6FFF1FFB599D52CA2FC82FA18"box="[723,815,1504,1530]"captionStart="Fig"captionStartId="22.[189,232,1821,1847]"captionTargetBox="[189,1398,853,1797]"captionTargetId="figure-207@22.[189,1398,853,1797]"captionTargetPageId="22"captionText="Fig. 9. Fish otoliths from the US lower Eocene formations. A–C. Preophidion arcuatus (Stinton, 1966), Cave Branch, Bashi Fm.,Alabama (IRSNB P 10750 to P 10752). D. Centroberyx sp., Hatchetigbee Bluff, Hatchetigbee Fm., Alabama (IRSNB P 10753). E. Bothidae indet., Ridge Creek, Reklaw Fm., Texas (IRSNB P 10754). F–G. Waitakia dorsogibbosa sp. nov. F. Pamunkey River, Hanovertown, Potapaco Member, Virginia, holotype (IRSNB P 10755). G. Piscataway Creek, Thrift Road ravine, Potapaco Member, Maryland, paratype (IRSNB P 10756). 1 = ventral view; 2 = inner view. Scale bars = 1 mm."figureDoi="http://doi.org/10.5281/zenodo.11526114"httpUri="https://zenodo.org/record/11526114/files/figure.png"pageId="21"pageNumber="224">Fig. 9G</figureCitation>
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, Pamunkey River, Hanovertown (
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This species is characterized by small, trapezoid to triangular otoliths, with dorsal and ventral rims approximately parallel to each other and oblique anterior and posterior rims. The dorsal rim is very short, bears a strong postero-dorsal angle, and its anterior part is inclined downwards. The ventral rim is gently curved and bears an angle at each end. The thickness of the otoliths is most considerable in the middle, with both the inner and outer faces being convex (
<figureCitationid="1305B2A6FFF1FFB598922E8CFC5DF80A"box="[916,1008,1998,2024]"captionStart="Fig"captionStartId="22.[189,232,1821,1847]"captionTargetBox="[189,1398,853,1797]"captionTargetId="figure-207@22.[189,1398,853,1797]"captionTargetPageId="22"captionText="Fig. 9. Fish otoliths from the US lower Eocene formations. A–C. Preophidion arcuatus (Stinton, 1966), Cave Branch, Bashi Fm.,Alabama (IRSNB P 10750 to P 10752). D. Centroberyx sp., Hatchetigbee Bluff, Hatchetigbee Fm., Alabama (IRSNB P 10753). E. Bothidae indet., Ridge Creek, Reklaw Fm., Texas (IRSNB P 10754). F–G. Waitakia dorsogibbosa sp. nov. F. Pamunkey River, Hanovertown, Potapaco Member, Virginia, holotype (IRSNB P 10755). G. Piscataway Creek, Thrift Road ravine, Potapaco Member, Maryland, paratype (IRSNB P 10756). 1 = ventral view; 2 = inner view. Scale bars = 1 mm."figureDoi="http://doi.org/10.5281/zenodo.11526114"httpUri="https://zenodo.org/record/11526114/files/figure.png"pageId="21"pageNumber="224">Fig. 9F</figureCitation>
<figureCitationid="1305B2A6FFF1FFB598F62E8CFC56F80A"box="[1008,1019,1998,2024]"captionStart="Fig"captionStartId="2.[189,232,1787,1813]"captionTargetBox="[269,1319,265,1747]"captionTargetId="figure-17@2.[269,1319,265,1747]"captionTargetPageId="2"captionText="Fig. 1. Maps showing the sampling sites on the US Gulf Coastal Plain (Texas, Mississippi, and Alabama) and Atlantic Coastal Plain (A = Virginia and Maryland). 1. Ridge Creek. 2–4. Taylor’s Branch of Two Mile Creek, samples 1–3. 5. Meridian, Gallagher Creek. 6. Meridian, Red Hot Truck Stop. 7. Hatchetigbee Bluff. 8. Cave Branch. 9. Elba Dam on Pea River. 10. Ozark. 11. Pamunkey River, E of Hanover School for boys. 12. Pamunkey River, Hanovertown. 13. Pamunkey River, 1 km W of Hunters Club. 14. Pamunkey River, Hunters Club. 15. Rappahannock River. 16. Loyola Retreat House, N of Popes Creek. 17. Popes Creek, South. 18. Piscataway Creek, Thrift Road ravine."figureDoi="http://doi.org/10.5281/zenodo.11526098"httpUri="https://zenodo.org/record/11526098/files/figure.png"pageId="21"pageNumber="224">1</figureCitation>
). The sulcus is well-divided into ostium and cauda, marked by a constriction of the cristae in the central zone of the sulcus. The ostium is wide, arrow-like, with a low ostial lobe expanding ventrally and tilting towards the antero-ventral rim, and its anterior tip nearly reaches the anterior rim of the otolith. The cauda is rod-like, horizontal, and shows a rounded posterior end. There is no trace of a swollen collicular crest on the caudal crista inferior like in gobiids. A dorsal depression is observed above the well-developed caudal crista superior.
<taxonomicNameid="4C3ED5A0FFF2FFB69A6A28B9FD82FDF6"authority="Lin & Steurbaut & Nolf, 2024"authorityName="Lin & Steurbaut & Nolf"authorityYear="2024"box="[364,559,506,532]"class="Actinopterygii"family="Percophidae"genus="Waitakia"higherTaxonomySource="GBIF"kingdom="Animalia"order="Perciformes"pageId="22"pageNumber="225"phylum="Chordata"rank="species"species="dorsogibbosa"status="sp. nov.">
<taxonomicNameid="4C3ED5A0FFF2FFB698C528B8FADAFDF7"authority="Lin & Nolf, 2022"authorityName="Lin & Nolf"authorityYear="2022"box="[963,1399,506,533]"class="Actinopterygii"family="Percophidae"genus="Waitakia"higherTaxonomySource="GBIF"kingdom="Animalia"order="Perciformes"pageId="22"pageNumber="225"phylum="Chordata"rank="species"species="beelzebub">
<bibRefCitationid="EFAFD3D2FFF2FFB69FAB28B8FADAFDF7"author="Lin C. - H. & Nolf D."box="[1197,1399,506,533]"pageId="22"pageNumber="225"pagination="1 - 122"refId="ref13528"refString="Lin C. - H. & Nolf D. 2022. Middle and late Eocene fish otoliths from the eastern and southern USA. European Journal of Taxonomy 814 (1): 1 - 122. https: // doi. org / 10.5852 / ejt. 2022.814.1745"type="journal article"year="2022">Lin & Nolf, 2022</bibRefCitation>
</taxonomicName>
from the middle to late Eocene (Lutetian-Bartonian) of the southern
<collectingCountryid="F329EEB3FFF2FFB698FA2B5EFB98FDD4"box="[1020,1077,540,566]"name="United States of America"pageId="22"pageNumber="225">USA</collectingCountry>
<taxonomicNameid="4C3ED5A0FFF2FFB698622B1DFB81FD9A"authorityName="Lin & Steurbaut & Nolf"authorityYear="2024"box="[868,1068,606,632]"class="Actinopterygii"family="Percophidae"genus="Waitakia"higherTaxonomySource="GBIF"kingdom="Animalia"order="Perciformes"pageId="22"pageNumber="225"phylum="Chordata"rank="species"species="dorsogibbosa">
has the shortest dorsal rim exhibiting a triangular outline. The species may represent one of the earliest records of this extinct lineage. It is extremely rare with only
<emphasisid="B94A7231FFF2FFB69BBB2BA2FD64FD18"bold="true"box="[189,713,736,763]"pageId="22"pageNumber="225">Stratigraphic and geographic distribution</emphasis>
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and
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