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<mods:title id="21E79ABB794C53E3F736C266C7052E94">The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)</mods:title>
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<mods:namePart id="5D3EB39D4F204F0F879E547A56273D11">Korn, Dieter</mods:namePart>
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<mods:affiliation id="F924FE15057A62EFCC2061B9AB964771">Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstrasse 43, 10115 Berlin, Germany.</mods:affiliation>
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<paragraph id="8BFCED02CAA985EFFDEFFC0EFBA187D5" blockId="160.[545,1043,926,953]" box="[545,1043,926,953]" pageId="160" pageNumber="161">
<heading id="D0B45A6ECAA985EFFDEFFC0EFBA187D5" box="[545,1043,926,953]" centered="true" fontSize="11" level="2" pageId="160" pageNumber="161" reason="2">
Genus
<taxonomicName id="4C439681CAA985EFFDBDFC0EFBA187D5" authority="Korn &amp; Weyer, 2003" authorityName="Korn &amp; Weyer" authorityYear="2003" box="[627,1043,926,953]" class="Cephalopoda" family="Gattendorfiidae" genus="Hasselbachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFDBDFC0EFCA487D4" bold="true" box="[627,790,926,953]" italics="true" pageId="160" pageNumber="161">Hasselbachia</emphasis>
<bibRefCitation id="EFD290F3CAA985EFFCD3FC0FFBA187D5" author="Korn D. &amp; Weyer D." box="[797,1043,926,953]" pageId="160" pageNumber="161" pagination="79 - 124" refId="ref115026" refString="Korn D. &amp; Weyer D. 2003. High resolution stratigraphy of the Devonian - Carboniferous transitional beds in the Rhenish Mountains. Mitteilungen aus dem Museum fur Naturkunde in Berlin, Geowissenschaftliche Reihe 6: 79 - 124. https: // doi. org / 10.1002 / mmng. 4860060105" type="journal article" year="2003">Korn &amp; Weyer, 2003</bibRefCitation>
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</heading>
</paragraph>
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<heading id="D0B45A6ECAA985EFFF73FC70FEEA8797" bold="true" box="[189,344,992,1018]" fontSize="11" level="3" pageId="160" pageNumber="161" reason="3">
<emphasis id="B9373110CAA985EFFF73FC70FEEA8797" bold="true" box="[189,344,992,1018]" pageId="160" pageNumber="161">
<typeStatus id="54F853A0CAA985EFFF73FC70FF488797" box="[189,250,992,1018]" pageId="160" pageNumber="161">Type</typeStatus>
species
</emphasis>
</heading>
</paragraph>
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<subSubSection id="C359BE89CAA985EFFF73FB9FFC5F8045" box="[189,1005,1038,1064]" pageId="160" pageNumber="161" type="reference_group">
<paragraph id="8BFCED02CAA985EFFF73FB9FFC5F8045" blockId="160.[189,1005,1038,1064]" box="[189,1005,1038,1064]" pageId="160" pageNumber="161">
<treatmentCitationGroup id="AB53CA2CCAA985EFFF73FB9FFC5F8045" box="[189,1005,1038,1064]" pageId="160" pageNumber="161">
<treatmentCitation id="0AE2CB13CAA985EFFF73FB9FFD5D8045" author="Vohringer E." box="[189,751,1038,1064]" page="141" pageId="160" pageNumber="161" year="1960">
<taxonomicName id="4C439681CAA985EFFF73FB9FFD5D8045" authority="Vohringer, 1960: 141" authorityName="Vohringer" authorityPageNumber="141" authorityYear="1960" box="[189,751,1038,1064]" class="Cephalopoda" family="Prionoceratidae" genus="Imitoceras" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="species" species="multisulcatum">
<emphasis id="B9373110CAA985EFFF73FB9FFE5A8045" box="[189,488,1038,1064]" italics="true" pageId="160" pageNumber="161">Imitoceras multisulcatum</emphasis>
<bibRefCitation id="EFD290F3CAA985EFFE21FB9EFD5D8045" author="Vohringer E." box="[495,751,1038,1064]" pageId="160" pageNumber="161" pagination="107 - 196" refId="ref118120" refString="Vohringer E. 1960. Die Goniatiten der unterkarbonischen Gattendorfia - Stufe im Honnetal (Sauerland). Fortschritte in der Geologie von Rheinland und Westfalen 3: 107 - 196." type="journal article" year="1960">Vöhringer, 1960: 141</bibRefCitation>
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; original designation.
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</paragraph>
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<subSubSection id="C359BE89CAA985EFFF73FBDFFAC58197" pageId="160" pageNumber="161" type="diagnosis">
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<heading id="D0B45A6ECAA985EFFF73FBDFFE3A8004" bold="true" box="[189,392,1103,1129]" fontSize="11" level="3" pageId="160" pageNumber="161" reason="3">
<emphasis id="B9373110CAA985EFFF73FBDFFE3A8004" bold="true" box="[189,392,1103,1129]" pageId="160" pageNumber="161">Genus diagnosis</emphasis>
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</paragraph>
<paragraph id="8BFCED02CAA985EFFF73FBEEFD8E816F" blockId="160.[188,1399,1150,1282]" pageId="160" pageNumber="161">
Genus of the
<taxonomicName id="4C439681CAA985EFFE94FBEEFDA280F5" authorityName="Bartzsch &amp; Weyer" authorityYear="1987" box="[346,528,1150,1176]" class="Cephalopoda" family="Gattendorfiidae" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="162" phylum="Mollusca" rank="subFamily" subFamily="Gattendorfiinae">Gattendorfiinae</taxonomicName>
with a discoidal to pachyconic conch with low coiling rate (WER = 1.50 1.70); inner whorls subevolute or evolute, umbilicus in the adult stage not completely closed. Ornament usually with coarse, convex or slightly biconvex growth lines. Suture line with deep, V-shaped external lobe (as deep as adventive lobe).
</paragraph>
<paragraph id="8BFCED02CAA985EFFF73FAB9FE1E812E" blockId="160.[189,428,1321,1347]" box="[189,428,1321,1347]" pageId="160" pageNumber="161">
<heading id="D0B45A6ECAA985EFFF73FAB9FE1E812E" bold="true" box="[189,428,1321,1347]" fontSize="11" level="3" pageId="160" pageNumber="161" reason="3">
<emphasis id="B9373110CAA985EFFF73FAB9FE1E812E" bold="true" box="[189,428,1321,1347]" pageId="160" pageNumber="161">Genus composition</emphasis>
</heading>
</paragraph>
<paragraph id="8BFCED02CAA985EFFF73FAC8FD4081FB" blockId="160.[189,1398,1368,1430]" pageId="160" pageNumber="161">
Central Europe (
<bibRefCitation id="EFD290F3CAA985EFFE40FAC8FDE6811F" author="Vohringer E." box="[398,596,1368,1394]" pageId="160" pageNumber="161" pagination="107 - 196" refId="ref118120" refString="Vohringer E. 1960. Die Goniatiten der unterkarbonischen Gattendorfia - Stufe im Honnetal (Sauerland). Fortschritte in der Geologie von Rheinland und Westfalen 3: 107 - 196." type="journal article" year="1960">Vöhringer 1960</bibRefCitation>
):
<taxonomicName id="4C439681CAA985EFFDBAFAC9FB30811F" authority="Vohringer, 1960" authorityName="Vohringer" authorityYear="1960" box="[628,1154,1368,1394]" class="Cephalopoda" family="Prionoceratidae" genus="Imitoceras" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="species" species="multisulcatum">
<emphasis id="B9373110CAA985EFFDBAFAC9FC15811F" box="[628,935,1368,1394]" italics="true" pageId="160" pageNumber="161">Imitoceras multisulcatum</emphasis>
<bibRefCitation id="EFD290F3CAA985EFFC78FAC8FB30811F" author="Vohringer E." box="[950,1154,1368,1394]" pageId="160" pageNumber="161" pagination="107 - 196" refId="ref118120" refString="Vohringer E. 1960. Die Goniatiten der unterkarbonischen Gattendorfia - Stufe im Honnetal (Sauerland). Fortschritte in der Geologie von Rheinland und Westfalen 3: 107 - 196." type="journal article" year="1960">Vöhringer, 1960</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C439681CAA985EFFB59FAC9FE3381F8" authority="Vohringer, 1960" authorityName="Vohringer" authorityYear="1960" class="Cephalopoda" family="Prionoceratidae" genus="Imitoceras" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="species" species="gracile">
<emphasis id="B9373110CAA985EFFB59FAC9FAC4811F" box="[1175,1398,1368,1394]" italics="true" pageId="160" pageNumber="161">Imitoceras gracile</emphasis>
<bibRefCitation id="EFD290F3CAA985EFFF73FAEBFE3381F8" author="Vohringer E." box="[189,385,1403,1429]" pageId="160" pageNumber="161" pagination="107 - 196" refId="ref118120" refString="Vohringer E. 1960. Die Goniatiten der unterkarbonischen Gattendorfia - Stufe im Honnetal (Sauerland). Fortschritte in der Geologie von Rheinland und Westfalen 3: 107 - 196." type="journal article" year="1960">Vöhringer, 1960</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C439681CAA985EFFE43FAEBFD2281F8" authority="Korn &amp; Weyer, 2023" authorityName="Korn &amp; Weyer" authorityYear="2023" box="[397,656,1403,1429]" class="Cephalopoda" family="Gattendorfiidae" genus="Hasselbachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="species" species="erronea" status="sp. nov.">
<emphasis id="B9373110CAA985EFFE43FAEBFD2281F8" box="[397,656,1403,1429]" italics="true" pageId="160" pageNumber="161">Hasselbachia erronea</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2048C6BCAA985EFFD59FAECFD4081FB" box="[663,754,1404,1430]" pageId="160" pageNumber="161" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
<paragraph id="8BFCED02CAA985EFFF73FA2CFAC58197" blockId="160.[189,1399,1468,1530]" pageId="160" pageNumber="161">
North Africa (
<bibRefCitation id="EFD290F3CAA985EFFEA2FA2CFD2F81BA" author="Ebbighausen V. &amp; Bockwinkel J. &amp; Korn D. &amp; Weyer D." box="[364,669,1468,1495]" pageId="160" pageNumber="161" pagination="133 - 152" refId="ref112772" refString="Ebbighausen V., Bockwinkel J., Korn D. &amp; Weyer D. 2004. Early Tournaisian ammonoids from Timimoun (Gourara, Algeria). Mitteilungen aus dem Museum fur Naturkunde in Berlin, Geowissenschaftliche Reihe 7: 133 - 152. https: // doi. org / 10.1002 / mmng. 4860070107" type="journal article" year="2004">
Ebbighausen
<emphasis id="B9373110CAA985EFFDDCFA2DFDE081BB" box="[530,594,1468,1494]" italics="true" pageId="160" pageNumber="161">et al.</emphasis>
2004
</bibRefCitation>
;
<bibRefCitation id="EFD290F3CAA985EFFD60FA2CFBFF81BA" author="Ebbighausen V. &amp; Bockwinkel J." box="[686,1101,1468,1495]" pageId="160" pageNumber="161" pagination="125 - 163" refId="ref112667" refString="Ebbighausen V. &amp; Bockwinkel J. 2007. Tournaisian (Early Carboniferous / Mississippian) ammonoids from the Ma'der Basin (Anti-Atlas, Morocco). Fossil Record 10: 125 - 163. https: // doi. org / 10.1002 / mmng. 200700003" type="journal article" year="2007">Ebbighausen &amp; Bockwinkel 2007</bibRefCitation>
):
<taxonomicName id="4C439681CAA985EFFBA4FA2CFD418197" authority="Ebbighausen, Bockwinkel, Korn &amp; Weyer, 2004" authorityName="Ebbighausen, Bockwinkel, Korn &amp; Weyer" authorityYear="2004" class="Cephalopoda" family="Gattendorfiidae" genus="Hasselbachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="species" species="gourara">
<emphasis id="B9373110CAA985EFFBA4FA2CFAC481BB" box="[1130,1398,1468,1494]" italics="true" pageId="160" pageNumber="161">Hasselbachia gourara</emphasis>
<bibRefCitation id="EFD290F3CAA985EFFF73FA70FD418197" author="Ebbighausen V. &amp; Bockwinkel J. &amp; Korn D. &amp; Weyer D." box="[189,755,1504,1530]" pageId="160" pageNumber="161" pagination="133 - 152" refId="ref112772" refString="Ebbighausen V., Bockwinkel J., Korn D. &amp; Weyer D. 2004. Early Tournaisian ammonoids from Timimoun (Gourara, Algeria). Mitteilungen aus dem Museum fur Naturkunde in Berlin, Geowissenschaftliche Reihe 7: 133 - 152. https: // doi. org / 10.1002 / mmng. 4860070107" type="journal article" year="2004">Ebbighausen, Bockwinkel, Korn &amp; Weyer, 2004</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="4C439681CAA985EFFD32FA70FAC08197" authority="Ebbighausen &amp; Bockwinkel, 2007" authorityName="Ebbighausen &amp; Bockwinkel" authorityYear="2007" box="[764,1394,1504,1530]" class="Cephalopoda" family="Gattendorfiidae" genus="Hasselbachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="species" species="arca">
<emphasis id="B9373110CAA985EFFD32FA70FC6A8197" box="[764,984,1504,1530]" italics="true" pageId="160" pageNumber="161">Hasselbachia arca</emphasis>
<bibRefCitation id="EFD290F3CAA985EFFC10FA70FAC08197" author="Ebbighausen V. &amp; Bockwinkel J." box="[990,1394,1504,1530]" pageId="160" pageNumber="161" pagination="125 - 163" refId="ref112667" refString="Ebbighausen V. &amp; Bockwinkel J. 2007. Tournaisian (Early Carboniferous / Mississippian) ammonoids from the Ma'der Basin (Anti-Atlas, Morocco). Fossil Record 10: 125 - 163. https: // doi. org / 10.1002 / mmng. 200700003" type="journal article" year="2007">Ebbighausen &amp; Bockwinkel, 2007</bibRefCitation>
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="C359BE89CAA985EEFF73F9B1FBE78504" lastPageId="161" lastPageNumber="162" pageId="160" pageNumber="161" type="discussion">
<paragraph id="8BFCED02CAA985EFFF73F9B1FE9D8256" blockId="160.[189,303,1569,1595]" box="[189,303,1569,1595]" pageId="160" pageNumber="161">
<heading id="D0B45A6ECAA985EFFF73F9B1FE9D8256" bold="true" box="[189,303,1569,1595]" fontSize="11" level="3" pageId="160" pageNumber="161" reason="3">
<emphasis id="B9373110CAA985EFFF73F9B1FE9D8256" bold="true" box="[189,303,1569,1595]" pageId="160" pageNumber="161">Remarks</emphasis>
</heading>
</paragraph>
<paragraph id="8BFCED02CAA985EFFF73F9C0FB5283E9" blockId="160.[189,1399,1616,1924]" pageId="160" pageNumber="161">
Several characters allow a clear separation from the superficially similar species of other genera, such as
<taxonomicName id="4C439681CAA985EFFF73F9E3FE3582E0" authorityName="Korn &amp; Weyer" authorityYear="2023" box="[189,391,1651,1677]" class="Cephalopoda" family="Prionoceratidae" genus="Paragattendorfia" kingdom="Animalia" order="Goniatitina" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFF73F9E3FE3582E0" box="[189,391,1651,1677]" italics="true" pageId="160" pageNumber="161">Paragattendorfia</emphasis>
</taxonomicName>
and
<taxonomicName id="4C439681CAA985EFFE0CF9E3FDFC82E0" baseAuthorityName="Korn &amp; Weyer" baseAuthorityYear="2023" box="[450,590,1651,1677]" class="Cephalopoda" family="Prionoceratidae" genus="Stockumites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFE0CF9E3FDFC82E0" box="[450,590,1651,1677]" italics="true" pageId="160" pageNumber="161">Stockumites</emphasis>
</taxonomicName>
. The low aperture and hence slowly expanding whorls (WER ~
<quantity id="4CBB40E7CAA985EFFA8CF9E3FF6782DD" metricMagnitude="-2" metricUnit="m" metricValue="3.81" pageId="160" pageNumber="161" unit="in" value="1.5">1.50 in</quantity>
the adult stage) is in contrast to
<taxonomicName id="4C439681CAA985EFFDA8F906FD4282DD" baseAuthorityName="Korn &amp; Weyer" baseAuthorityYear="2023" box="[614,752,1686,1712]" class="Cephalopoda" family="Prionoceratidae" genus="Stockumites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFDA8F906FD4282DD" box="[614,752,1686,1712]" italics="true" pageId="160" pageNumber="161">Stockumites</emphasis>
</taxonomicName>
, in which this value usually ranges between 1.70 and 1.90. Species of
<taxonomicName id="4C439681CAA985EFFE4DF929FDFF82BE" authorityName="Korn &amp; Weyer" authorityYear="2023" box="[387,589,1721,1747]" class="Cephalopoda" family="Prionoceratidae" genus="Paragattendorfia" kingdom="Animalia" order="Goniatitina" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFE4DF929FDFF82BE" box="[387,589,1721,1747]" italics="true" pageId="160" pageNumber="161">Paragattendorfia</emphasis>
</taxonomicName>
have similarly low coiling rates (WER ~1.45), but in
<taxonomicName id="4C439681CAA985EFFB1EF929FADD82BE" authorityName="Korn &amp; Weyer" authorityYear="2003" box="[1232,1391,1721,1747]" class="Cephalopoda" family="Gattendorfiidae" genus="Hasselbachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFB1EF929FADD82BE" box="[1232,1391,1721,1747]" italics="true" pageId="160" pageNumber="161">Hasselbachia</emphasis>
</taxonomicName>
, the umbilicus is wide only in the inner whorls, followed by an incomplete adult closure by a significant overlap of the flanks upon the umbilicus. In
<taxonomicName id="4C439681CAA985EFFD3CF890FC0E8377" authorityName="Korn &amp; Weyer" authorityYear="2023" box="[754,956,1792,1818]" class="Cephalopoda" family="Prionoceratidae" genus="Paragattendorfia" kingdom="Animalia" order="Goniatitina" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFD3CF890FC0E8377" box="[754,956,1792,1818]" italics="true" pageId="160" pageNumber="161">Paragattendorfia</emphasis>
</taxonomicName>
, the uw/dm ratio is rather constant throughout ontogeny.
<taxonomicName id="4C439681CAA985EFFE0EF8B3FDD28350" authorityName="Korn &amp; Weyer" authorityYear="2003" box="[448,608,1827,1853]" class="Cephalopoda" family="Gattendorfiidae" genus="Hasselbachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFE0EF8B3FDD28350" box="[448,608,1827,1853]" italics="true" pageId="160" pageNumber="161">Hasselbachia</emphasis>
</taxonomicName>
is remarkable because it combines characters, which are present in other genera: the low WER as in
<taxonomicName id="4C439681CAA985EFFD84F8D7FD49830D" authorityName="Korn" authorityYear="1988" box="[586,763,1863,1888]" class="Cephalopoda" family="Prionoceratidae" genus="Mimimitoceras" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFD84F8D7FD49830D" box="[586,763,1863,1888]" italics="true" pageId="160" pageNumber="161">Mimimitoceras</emphasis>
</taxonomicName>
, the continuous opening of the umbilicus in the inner whorls as in
<taxonomicName id="4C439681CAA985EFFE9CF8F9FDAE83EE" authorityName="Korn &amp; Weyer" authorityYear="2023" box="[338,540,1897,1923]" class="Cephalopoda" family="Prionoceratidae" genus="Paragattendorfia" kingdom="Animalia" order="Goniatitina" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFE9CF8F9FDAE83EE" box="[338,540,1897,1923]" italics="true" pageId="160" pageNumber="161">Paragattendorfia</emphasis>
</taxonomicName>
and closure of the umbilicus is more similar to
<taxonomicName id="4C439681CAA985EFFB83F8F9FB6B83EE" baseAuthorityName="Korn &amp; Weyer" baseAuthorityYear="2023" box="[1101,1241,1897,1923]" class="Cephalopoda" family="Prionoceratidae" genus="Stockumites" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFB83F8F9FB6B83EE" box="[1101,1241,1897,1923]" italics="true" pageId="160" pageNumber="161">Stockumites</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8BFCED02CAA985EEFF73F83BFBE78504" blockId="160.[189,1399,1963,2024]" lastBlockId="161.[189,1399,265,362]" lastPageId="161" lastPageNumber="162" pageId="160" pageNumber="161">
<bibRefCitation id="EFD290F3CAA985EFFF73F83BFE2383A8" author="Kullmann J." box="[189,401,1963,1989]" pageId="160" pageNumber="161" pagination="2 - 10" refId="ref115865" refString="Kullmann J. 2009. Prionoceratoidea, In: Seldon P. A. (Ed.), Treatise on Invertebrate Paleontology. Part L. Mollusca 4 Revised. Volume 2: Carboniferous and Permian Ammonoidea (Goniatitida and Prolecanitida): 2 - 10. The University of Kansas Paleontological Institute, Lawrence, Kansas." type="book chapter" year="2009">Kullmann (2009)</bibRefCitation>
regarded
<taxonomicName id="4C439681CAA985EFFDD4F83BFD0883A8" authorityName="Korn &amp; Weyer" authorityYear="2003" box="[538,698,1963,1989]" class="Cephalopoda" family="Gattendorfiidae" genus="Hasselbachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFDD4F83BFD0883A8" box="[538,698,1963,1989]" italics="true" pageId="160" pageNumber="161">Hasselbachia</emphasis>
</taxonomicName>
as probable synonym of the subgenus
<taxonomicName id="4C439681CAA985EFFB0BF83BFEEC8385" class="Cephalopoda" family="Gattendorfiidae" genus="Acutimitoceras" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="subGenus" subGenus="Stockumites">
<emphasis id="B9373110CAA985EFFB0BF83BFAC583A8" box="[1221,1399,1963,1989]" italics="true" pageId="160" pageNumber="161">Acutimitoceras</emphasis>
(
<emphasis id="B9373110CAA985EFFF09F85EFEE18385" box="[199,339,1998,2024]" italics="true" pageId="160" pageNumber="161">Stockumites</emphasis>
)
</taxonomicName>
, but the clear distinguishable characters (e.g., the very low coiling rate in
<taxonomicName id="4C439681CAA985EFFB00F85EFADF8385" authorityName="Korn &amp; Weyer" authorityYear="2003" box="[1230,1389,1998,2024]" class="Cephalopoda" family="Gattendorfiidae" genus="Hasselbachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="160" pageNumber="161" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA985EFFB00F85EFADF8385" box="[1230,1389,1998,2024]" italics="true" pageId="160" pageNumber="161">Hasselbachia</emphasis>
</taxonomicName>
) make such a decision obsolete. Apart from the coiling rate, the different shape of the inner whorls justify the independence of the genus and can be used as an indication for a phylogenetic placement of
<taxonomicName id="4C439681CAA885EEFF73FEDFFEEF8504" authorityName="Korn &amp; Weyer" authorityYear="2003" box="[189,349,335,361]" class="Cephalopoda" family="Gattendorfiidae" genus="Hasselbachia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Goniatitida" pageId="161" pageNumber="162" phylum="Mollusca" rank="genus">
<emphasis id="B9373110CAA885EEFF73FEDFFEEF8504" box="[189,349,335,361]" italics="true" pageId="161" pageNumber="162">Hasselbachia</emphasis>
</taxonomicName>
in an evolutionary lineage within the subfamily
<taxonomicName id="4C439681CAA885EEFC59FEDFFBE08504" authorityName="Bartzsch &amp; Weyer" authorityYear="1987" box="[919,1106,335,361]" class="Cephalopoda" family="Gattendorfiidae" kingdom="Animalia" order="Goniatitida" pageId="161" pageNumber="162" phylum="Mollusca" rank="subFamily" subFamily="Gattendorfiinae">Gattendorfiinae</taxonomicName>
.
</paragraph>
</subSubSection>
</treatment>
</document>