<taxonomicNameid="4C274D4FFFFAE41AFC7AFC40FB59FC03"ID-CoL="CN5M7"authorityName="Merle & Pacaud & Ledon & Goret"authorityYear="2024"box="[962,1240,918,944]"class="Gastropoda"family="Muricidae"genus="Timbellus"kingdom="Animalia"order="Neogastropoda"pageId="28"pageNumber="521"phylum="Mollusca"rank="species"species="submicropterus"status="sp. nov.">
<treatmentCitationid="0A8610DDFFFAE41AFBD7FB92FA2AFBEF"author="COSSMANN M. & PISSARRO G."box="[1135,1451,1092,1116]"page="128"pageId="28"pageNumber="521"year="1901">
<bibRefCitationid="EFB64B3DFFFAE41AFBD7FB92FA2AFBEF"author="COSSMANN M. & PISSARRO G."box="[1135,1451,1092,1116]"pageId="28"pageNumber="521"pagination="61 - 140"refId="ref43809"refString="COSSMANN M. & PISSARRO G. 1901. - Faune eocenique du Cotentin. 2 eme article. Bulletin de la Societe Geologique de Normandie 20: 11 - 90. [Also published as Cossmann M. & Pissarro G. 1901. - Faune eocenique du Cotentin (Mollusques), Tome 1, Fascicule 2, Imprimerie du Journal Le Havre, Le Havre, 61 - 140]."type="book chapter"year="1901">Cossmann & Pissarro 1901: 128</bibRefCitation>
<bibRefCitationid="EFB64B3DFFFAE41AFC65FB89FBF0FBC4"author="LAMARCK J. - B."box="[989,1137,1119,1143]"pageId="28"pageNumber="521"pagination="217 - 227"refId="ref45566"refString="LAMARCK J. - B. 1803. - Memoires sur les fossiles des environs de Paris (suite 1). Annales du Museum d'Histoire naturelle 2 (9): 217 - 227."type="journal article"year="1803">Lamarck, 1803</bibRefCitation>
<treatmentCitationid="0A8610DDFFFAE41AFBA1FB4EFB79FB03"author="MERLE D. & GARRIGUES B. & POINTIER J. - P."box="[1049,1272,1176,1200]"page="448"pageId="28"pageNumber="521"year="2011">
<bibRefCitationid="EFB64B3DFFFAE41AFBA1FB4EFB79FB03"author="MERLE D. & GARRIGUES B. & POINTIER J. - P."box="[1049,1272,1176,1200]"pageId="28"pageNumber="521"refId="ref47234"refString="MERLE D., GARRIGUES B. & POINTIER J. - P. 2011. - Fossil & Recent Muricidae of the World. Part Muricinae. ConchBooks, Hackenheim, 652 p."type="book"year="2011">
<bibRefCitationid="EFB64B3DFFFAE41AFC28FB64FBABFB79"author="DESHAYES G. - P."box="[912,1066,1202,1226]"pageId="28"pageNumber="521"pagination="101 - 107"refId="ref44001"refString="DESHAYES G. - P. 1865. - Description des Animaux sans vertebres decouverts dans le bassin de Paris pour servir de supplement a la description des coquilles fossiles des environs de Paris, comprenant une revue generale de toutes les especes actuellement connues. Tome 3. Bailliere, Paris, Livraisons 45 - 46, p. 201 - 288; Atlas 2, pl. 86 - 93 [2 January]; Livraisons 47 - 48, p. 289 - 424, Atlas 2, pl. 94 - 100 [10 June]; Livraisons 49 - 50, p. 425 - 668; Atlas 2, pl. 101 - 107 [15 December]."type="journal article"year="1865">Deshayes, 1865</bibRefCitation>
<materialsCitationid="3B4F3C91FFFAE41AFC95FB3EFC05FAFC"ID-GBIF-Occurrence="4958671331"collectionCode="MNHN"collectorName="de Fresville"country="France"location="Calcaire de Fresville"pageId="28"pageNumber="521"specimenCount="1"stateProvince="Haute-Normandie"typeStatus="holotype">
<locationid="8EF86017FFFAE41AFC34FAD4FBD6FAA9"LSID="urn:lsid:plazi:treatment:038E87DAFFFAE41BFC7AFC40FC86F858:8EF86017FFFAE41AFC34FAD4FBD6FAA9"box="[908,1111,1282,1306]"country="France"name="Calcaire de Fresville"pageId="28"pageNumber="521"stateProvince="Haute-Normandie">
<collectionCodeid="ED36AE09FFFAE41AFCD0FACBFC3FFA87"box="[872,958,1309,1332]"country="France"httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988"lsid="urn:lsid:biocol.org:col:34988"name="Museum National d'Histoire Naturelle"pageId="28"pageNumber="521">MNHN</collectionCode>
.F.A24111 (
<collectionCodeid="ED36AE09FFFAE41AFB88FACAFB04FA87"box="[1072,1157,1308,1332]"country="France"httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988"lsid="urn:lsid:biocol.org:col:34988"name="Museum National d'Histoire Naturelle"pageId="28"pageNumber="521">MNHN</collectionCode>
<bibRefCitationid="EFB64B3DFFFAE41AFB61FABAFCDEFA2D"author="COSSMANN M. & PISSARRO G."pageId="28"pageNumber="521"pagination="61 - 140"refId="ref43809"refString="COSSMANN M. & PISSARRO G. 1901. - Faune eocenique du Cotentin. 2 eme article. Bulletin de la Societe Geologique de Normandie 20: 11 - 90. [Also published as Cossmann M. & Pissarro G. 1901. - Faune eocenique du Cotentin (Mollusques), Tome 1, Fascicule 2, Imprimerie du Journal Le Havre, Le Havre, 61 - 140]."type="book chapter"year="1901">Cossmann & Pissarro 1901</bibRefCitation>
)(
<figureCitationid="131C2A49FFFAE41AFCC9FA50FC5BFA2D"box="[881,986,1414,1438]"captionStart="FIG"captionStartId="30.[132,143,1872,1889]"captionTargetBox="[147,1440,260,1687]"captionTargetId="figure-206@30.[700,1256,828,1396]"captionTargetPageId="30"captionText="FIG. 16. — Spiral cords and internal denticles of the outer lip in Timbellus submicropterus n. sp. (A-H, K) and T. micropterus (Deshayes, 1835) (I, J, L): A, B, holotype, MNHN.F.A24111 (MNHN coll.), Fresville, Manche, Normandy, France, middle Eocene (Lutetian); C, D, paratype, MNHN.F.A24126 (Munier-Chalmas coll.), Gourbesville, Manche, middle Eocene (Lutetian); E, F, paratype, UCBL-EM 33438 (Bourdot coll.), Fresville; G, H, MNHN.F.A90557 (Brébion coll.), Saint-Aignan- Grand-Lieu (Pierre-Aiguë), Loire-Atlantique, Loire Basin, France, middle Eocene (Bartonian); I, J, MNHN.F.A32522 (Faullummel coll.), Le Limon, Seine-et-Marne, Paris Basin, France,middle Eocene (Bartonian);K, paratype (protoconch), MNHN.F.A90556 (MNHN coll.), Fresville; L, MNHN.F.A90558 (Faullummel coll., protoconch), Chavençon (Carrière Tuyttens), Oise, Paris Basin, France, middle Eocene (Bartonian). Scale bars: A-J, 10 mm; K, L, 0.5 mm. Credits: A-D, I, J, P. Loubry (MNHN/CNRS); E, F, E. Robert (UCBL); G, H, K, L, L. Cazes (MNHN/CNRS)."figureDoi="http://doi.org/10.5281/zenodo.13985800"httpUri="https://zenodo.org/record/13985800/files/figure.png"pageId="28"pageNumber="521">Figs 16E, F</figureCitation>
;
<figureCitationid="131C2A49FFFAE41AFC58FA50FB8DFA2D"box="[992,1036,1414,1438]"captionStart="FIG"captionStartId="46.[132,143,1606,1623]"captionTargetBox="[132,1455,215,1546]"captionTargetId="figure-366@46.[699,1260,794,1359]"captionTargetPageId="46"captionText="FIG. 27. — New species of Timbellus De Gregorio, 1885, Pterynotus Swainson, 1833 (Pterymarchia Houart, 1995), Textiliomurex Merle, 2011, Ponderia Houart, 1986 and Flexopteron Shuto, 1969: A-C, Timbellus submicropterus n. sp.: A, holotype, MNHN.F.A24111 (MNHN coll.), Fresville, France, Lutetian; B, paratype, MNHN.F.A24126 (Munier-Chalmas coll.), Gourbesville, France, Lutetian; C, paratype, UCBL-EM 33438 (Bourdot coll.), Fresville; D, T. cf. submicropterus n. sp., MNHN.F.A90557 (Brébion coll.), Saint-Aignan-Grand-Lieu (Pierre-Aiguë), France, Bartonian; E, F, Pterynotus (Pterymarchia) gaasensis n. sp.: E, holotype, MNHN.F.A32492 (Merle coll.), Gaas (Espibos), France, Rupelian; F, paratype, MNHN.F.A90554 (Merle coll.), Gaas (Espibos); G, H, P. (P.) pelouatensis n. sp.: G, holotype, MNHN.F.J09945, Saucats (Peloua), France, Burdigalian; H, paratype, MNHN.F.J17632, Saucats (Peloua); I, J, Textiliomurex chodmonensis n. sp.: I, holotype, MNHN.F.A81144 (Pacaud coll.), Chaumont-en-Vexin (Carrière Darcy), France, Lutetian; J, paratype, MNHN.F.A81145 (Pons coll.), Chaumont-en- Vexin (Carrière Darcy); K, L, Ponderia remyi n. sp.: K, holotype, MNHN.F.A90548 (Remy coll.), Fresville, Lutetian; L, paratype, MNHN.F.A90555, Fresville (Remy coll.); M, N, Flexopteron constantinense n. sp.: M, paratype, MNHN.F.A77761 (MNHN coll.), Carentan-les-Marais (Cauvin), France, Priabonian; N, holotype, MNHN.F.A77760 (MNHN coll.), Carentan-les-Marais (Cauvin). Scale bars: A-D, I-L, 10 mm; E-H, N, 5 mm; M, 3 mm. Credits: A, B, D-F, N, P. Loubry (MNHN/ CNRS); C, E. Robert (UCBL)."figureDoi="http://doi.org/10.5281/zenodo.13985831"httpUri="https://zenodo.org/record/13985831/files/figure.png"pageId="28"pageNumber="521">27C</figureCitation>
<collectionCodeid="ED36AE09FFFAE41AFB26FA51FB71FA2D"box="[1182,1264,1415,1438]"country="France"httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988"lsid="urn:lsid:biocol.org:col:34988"name="Museum National d'Histoire Naturelle"pageId="28"pageNumber="521">MNHN</collectionCode>
.F.A90556 (
<collectionCodeid="ED36AE09FFFAE41AFAE5FA50FA2EFA2D"box="[1373,1455,1414,1438]"country="France"httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988"lsid="urn:lsid:biocol.org:col:34988"name="Museum National d'Histoire Naturelle"pageId="28"pageNumber="521">MNHN</collectionCode>
coll.) (
<figureCitationid="131C2A49FFFAE41AFCD7FA77FC49FA0A"box="[879,968,1441,1465]"captionStart="FIG"captionStartId="30.[132,143,1872,1889]"captionTargetBox="[147,1440,260,1687]"captionTargetId="figure-206@30.[700,1256,828,1396]"captionTargetPageId="30"captionText="FIG. 16. — Spiral cords and internal denticles of the outer lip in Timbellus submicropterus n. sp. (A-H, K) and T. micropterus (Deshayes, 1835) (I, J, L): A, B, holotype, MNHN.F.A24111 (MNHN coll.), Fresville, Manche, Normandy, France, middle Eocene (Lutetian); C, D, paratype, MNHN.F.A24126 (Munier-Chalmas coll.), Gourbesville, Manche, middle Eocene (Lutetian); E, F, paratype, UCBL-EM 33438 (Bourdot coll.), Fresville; G, H, MNHN.F.A90557 (Brébion coll.), Saint-Aignan- Grand-Lieu (Pierre-Aiguë), Loire-Atlantique, Loire Basin, France, middle Eocene (Bartonian); I, J, MNHN.F.A32522 (Faullummel coll.), Le Limon, Seine-et-Marne, Paris Basin, France,middle Eocene (Bartonian);K, paratype (protoconch), MNHN.F.A90556 (MNHN coll.), Fresville; L, MNHN.F.A90558 (Faullummel coll., protoconch), Chavençon (Carrière Tuyttens), Oise, Paris Basin, France, middle Eocene (Bartonian). Scale bars: A-J, 10 mm; K, L, 0.5 mm. Credits: A-D, I, J, P. Loubry (MNHN/CNRS); E, F, E. Robert (UCBL); G, H, K, L, L. Cazes (MNHN/CNRS)."figureDoi="http://doi.org/10.5281/zenodo.13985800"httpUri="https://zenodo.org/record/13985800/files/figure.png"pageId="28"pageNumber="521">Fig. 16K</figureCitation>
<collectionCodeid="ED36AE09FFFAE41AFBC0FA77FB4DFA0B"box="[1144,1228,1441,1464]"country="France"httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988"lsid="urn:lsid:biocol.org:col:34988"name="Museum National d'Histoire Naturelle"pageId="28"pageNumber="521">MNHN</collectionCode>
<materialsCitationid="3B4F3C91FFFAE41AFCC6FA6DFB81F990"ID-GBIF-Occurrence="4958671370"collectorName="Manche & Gourbesville"country="France"location="Normandy"pageId="28"pageNumber="521"specimenCount="1"stateProvince="Haute-Normandie"typeStatus="paratype">
<locationid="8EF86017FFFAE41AFA84FA6DFC05FA5D"LSID="urn:lsid:plazi:treatment:038E87DAFFFAE41BFC7AFC40FC86F858:8EF86017FFFAE41AFA84FA6DFC05FA5D"country="France"name="Calcaire de Fresville"pageId="28"pageNumber="521">Calcaire de Fresville</location>
<collectionCodeid="ED36AE09FFFAE41AFB8EFA00FB0AFA5E"box="[1078,1163,1494,1517]"country="France"httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988"lsid="urn:lsid:biocol.org:col:34988"name="Museum National d'Histoire Naturelle"pageId="28"pageNumber="521">MNHN</collectionCode>
<bibRefCitationid="EFB64B3DFFFAE41AFB97FA26FA90F9BB"author="MERLE D. & GARRIGUES B. & POINTIER J. - P."box="[1071,1297,1520,1544]"pageId="28"pageNumber="521"refId="ref47234"refString="MERLE D., GARRIGUES B. & POINTIER J. - P. 2011. - Fossil & Recent Muricidae of the World. Part Muricinae. ConchBooks, Hackenheim, 652 p."type="book"year="2011">
<taxonomicNameid="4C274D4FFFFAE41AFB97FA26FBE9F9BB"authorityName="Merle & Pacaud & Ledon & Goret"authorityYear="2024"box="[1071,1128,1520,1544]"class="Gastropoda"family="Muricidae"kingdom="Animalia"order="Neogastropoda"pageId="28"pageNumber="543"phylum="Mollusca"rank="subFamily"status="subfam. nov."subFamily="Merle">Merle</taxonomicName>
<taxonomicNameid="4C274D4FFFFAE41AFB46F997FC1CF9C0"authorityName="Merle & Pacaud & Ledon & Goret"authorityYear="2024"class="Gastropoda"family="Muricidae"genus="Timbellus"isUncertain="true"kingdom="Animalia"order="Neogastropoda"pageId="28"pageNumber="521"phylum="Mollusca"rank="species"species="submicropterus"status="sp. nov.">
<collectingRegionid="49E3F82EFFFAE41AFAC3F98AFA2EF9C7"box="[1403,1455,1628,1652]"country="France"name="Pays de la Loire"pageId="28"pageNumber="521">Loire</collectingRegion>
. — Calcaire de Fresville, middle Eocene (uppermost Lutetian), see
<bibRefCitationid="EFB64B3DFFFAE41AFC0EF854FBF7F829"author="BIGNOT G. & HOMMERIL P. & LARSONNEUR C."box="[950,1142,1922,1946]"pageId="28"pageNumber="521"pagination="405 - 416"refId="ref42941"refString="BIGNOT G., HOMMERIL P. & LARSONNEUR C. 1968. - Le Lutetien au large du Cotentin, in Colloque sur l'Eocene (Paris, mai 1968). Memoires BRGM 58: 405 - 416."type="journal article"year="1968">
<bibRefCitationid="EFB64B3DFFFAE41AFC97F805FC3DF85F"author="APGN & ASSOCIATION PATRIMOINE GEOLOGIQUE DE NORMANDIE"box="[815,956,2003,2028]"pageId="28"pageNumber="521"refId="ref42597"refString="APGN (ASSOCIATION PATRIMOINE GEOLOGIQUE DE NORMANDIE) 2024. - Faluns cretaces et tertiaires de Fresville, BNO 0182. Available at: http: // www. apgn. fr / apgn / carte _ site / fic _ s 50 _ 75. pdf (last access on 03 / 2024)."type="book"year="2024">APGN (2024)</bibRefCitation>
(Calcaire de Fresville) middle Eocene (uppermost Lutetian) and?
<collectingRegionid="49E3F82EFFFBE41BFE26FF24FE50FEB9"box="[414,465,242,266]"country="France"name="Pays de la Loire"pageId="29"pageNumber="522">Loire</collectingRegion>
Basin (Sables du Bois-Gouët), lowermost Bartonian, see
<bibRefCitationid="EFB64B3DFFFBE41BFE39FEDAFD06FE96"author="MATHELIN J. - C. & BIGNOT G."box="[385,647,268,293]"pageId="29"pageNumber="522"pagination="55 - 70"refId="ref46304"refString="MATHELIN J. - C. & BIGNOT G. 1989. - Le falun de Foulangues et ses relations stratigraphique et paleogeographique avec le Biarritzien stratotypique, in 114 eme Congres national des Societes savantes. Geologie du Bassin Parisien. CTHS, Paris: 55 - 70."type="book chapter"year="1989">Mathelin & Bignot (1989)</bibRefCitation>
in width, biconic in profile, composed of six whorls. Moderately high spire. Last whorl up to 70% of total length. Apical angle 59°. Spiral sculpture with coarse primary cords. First to third whorl: no cord. Fourth whorl: appearance of weak P1, s1 and P2. Fifth whorl: P1, s2 and P2 coarser. Sixth whorl: P1 to P6, s1; P6 not atrophied on convex part of whorl; ADP, MP and ABP on siphonal canal. From first whorl to second whorl: 6-7 protovarices. On third whorl: appearance of varices; three varices and one intervarix intercalated. From third to sixth whorl: no change. Higher relief of intervarices on P2. Varices rather thick. Appearance of short P1 spine on third whorl. Ovate aperture up to 27% of diameter and up to 71% of length of last whorl (including siphonal canal). Columellar lip smooth, narrow, poorly erect anteriorly, forming curved inductura at base. Parietal lip slightly adherent. Outer lip with developed denticles including ID, D1 to D6. D
<bibRefCitationid="EFB64B3DFFFBE41BFDB5FBA2FD39FB3D"author="LAMARCK J. - B."box="[525,696,1140,1166]"pageId="29"pageNumber="522"pagination="217 - 227"refId="ref45566"refString="LAMARCK J. - B. 1803. - Memoires sur les fossiles des environs de Paris (suite 1). Annales du Museum d'Histoire naturelle 2 (9): 217 - 227."type="journal article"year="1803">Lamarck, 1803</bibRefCitation>
<bibRefCitationid="EFB64B3DFFFBE41BFDCCFB42FEB4FB7D"author="COSSMANN M. & PISSARRO G."pageId="29"pageNumber="522"pagination="61 - 140"refId="ref43809"refString="COSSMANN M. & PISSARRO G. 1901. - Faune eocenique du Cotentin. 2 eme article. Bulletin de la Societe Geologique de Normandie 20: 11 - 90. [Also published as Cossmann M. & Pissarro G. 1901. - Faune eocenique du Cotentin (Mollusques), Tome 1, Fascicule 2, Imprimerie du Journal Le Havre, Le Havre, 61 - 140]."type="book chapter"year="1901">Cossmann & Pissarro (1901)</bibRefCitation>
differs greatly by apertural (with weak internal denticles within the outer lip), sculptural and shape characters, and belongs to another group species (see above
<figureCitationid="131C2A49FFFBE41BFDA5FAC5FDEAFA9D"box="[541,619,1299,1326]"captionStart="FIG"captionStartId="26.[132,143,1378,1395]"captionTargetBox="[132,1455,215,1334]"captionTargetId="figure-411@26.[698,1267,213,775]"captionTargetPageId="26"captionText="FIG. 14. — Spiral cords and internal denticles of the outer lip in Timbellus crenulatus tricarinatus (Lamarck, 1803) (A-C) and T. curvispina n. sp. (D-H): A, original figure of Lamarck (1816: pl. 418, fig. 5a), Thiverval-Grignon, Yvelines, Paris Basin, France, middle Eocene (Lutetian); B, C, neotype designated herein, MNHN.F.A90547 (MNHN coll.), Thiverval-Grignon (Falunière); D, paratype, MNHN.F.A73848 (Pons coll.), Fontenay-en-Vexin (Bois-du-But), Eure, Paris Basin, France,middle Eocene (Lutetian); E, F, holotype, MNHN.F.A90541 (MNHN coll.), Parnes, Oise, middle Eocene (Lutetian);G, H, paratype,MNHN.F.A90543 (Pons coll.), Fontenay-en-Vexin. Scale bars: B-H, 10 mm. Credits: P. Loubry."figureDoi="http://doi.org/10.5281/zenodo.13985794"httpUri="https://zenodo.org/record/13985794/files/figure.png"pageId="29"pageNumber="522">Fig. 14</figureCitation>
). In fact, this specimen illustrated by
<bibRefCitationid="EFB64B3DFFFBE41BFE3EFAE5FD47FAFE"author="COSSMANN M. & PISSARRO G."box="[390,710,1331,1357]"pageId="29"pageNumber="522"pagination="61 - 140"refId="ref43809"refString="COSSMANN M. & PISSARRO G. 1901. - Faune eocenique du Cotentin. 2 eme article. Bulletin de la Societe Geologique de Normandie 20: 11 - 90. [Also published as Cossmann M. & Pissarro G. 1901. - Faune eocenique du Cotentin (Mollusques), Tome 1, Fascicule 2, Imprimerie du Journal Le Havre, Le Havre, 61 - 140]."type="book chapter"year="1901">Cossmann & Pissarro (1901)</bibRefCitation>
<bibRefCitationid="EFB64B3DFFFBE41BFF75FAA5FE15FA3E"author="MERLE D. & GARRIGUES B. & POINTIER J. - P."box="[205,404,1395,1421]"pageId="29"pageNumber="522"refId="ref47234"refString="MERLE D., GARRIGUES B. & POINTIER J. - P. 2011. - Fossil & Recent Muricidae of the World. Part Muricinae. ConchBooks, Hackenheim, 652 p."type="book"year="2011">
<taxonomicNameid="4C274D4FFFFBE41BFF75FAA5FE8CFA3E"authorityName="Merle & Pacaud & Ledon & Goret"authorityYear="2024"box="[205,269,1395,1421]"class="Gastropoda"family="Muricidae"kingdom="Animalia"order="Neogastropoda"pageId="29"pageNumber="543"phylum="Mollusca"rank="subFamily"status="subfam. nov."subFamily="Merle">Merle</taxonomicName>
) and finer secondary cords on the last whorl. The bivariate plot of total length against width (
<figureCitationid="131C2A49FFFBE41BFF60F984FEA8F9DF"box="[216,297,1618,1644]"captionStart="FIG"captionStartId="31.[131,142,891,908]"captionTargetBox="[269,1278,178,858]"captionTargetId="figure-686@31.[347,1001,217,720]"captionText="FIG. 17. — Bivariate plot of total length against width comparing T. micropterus (Deshayes, 1835) from the lower Bartonian of the Paris Basin (50 complete specimens) and T. submicropterus n. sp. from the uppper Lutetian of Normandy (five complete specimens)."figureDoi="http://doi.org/10.5281/zenodo.13988488"httpUri="https://zenodo.org/record/13988488/files/figure.png"pageId="29"pageNumber="522">Fig. 17</figureCitation>
and Paris Basin populations. Finally, it is tempting to conclude that the observed teleoconch differences in
<taxonomicNameid="4C274D4FFFFBE41BFD49F945FEA2F97F"authorityName="Merle & Pacaud & Ledon & Goret"authorityYear="2024"class="Gastropoda"family="Muricidae"genus="Timbellus"kingdom="Animalia"order="Neogastropoda"pageId="29"pageNumber="522"phylum="Mollusca"rank="species"species="submicropterus"status="n. sp.">
<taxonomicNameid="4C274D4FFFFBE41BFE7AF905FD01F95F"authorityName="Merle & Pacaud & Ledon & Goret"authorityYear="2024"box="[450,640,1746,1772]"class="Gastropoda"family="Muricidae"genus="Timbellus"kingdom="Animalia"order="Neogastropoda"pageId="29"pageNumber="522"phylum="Mollusca"rank="species"species="submicropterus"status="n. sp.">
<figureCitationid="131C2A49FFFBE41BFF59F8C4FEE5F89F"box="[225,356,1810,1836]"captionStart="FIG"captionStartId="30.[132,143,1872,1889]"captionTargetBox="[147,1440,260,1687]"captionTargetId="figure-206@30.[700,1256,828,1396]"captionTargetPageId="30"captionText="FIG. 16. — Spiral cords and internal denticles of the outer lip in Timbellus submicropterus n. sp. (A-H, K) and T. micropterus (Deshayes, 1835) (I, J, L): A, B, holotype, MNHN.F.A24111 (MNHN coll.), Fresville, Manche, Normandy, France, middle Eocene (Lutetian); C, D, paratype, MNHN.F.A24126 (Munier-Chalmas coll.), Gourbesville, Manche, middle Eocene (Lutetian); E, F, paratype, UCBL-EM 33438 (Bourdot coll.), Fresville; G, H, MNHN.F.A90557 (Brébion coll.), Saint-Aignan- Grand-Lieu (Pierre-Aiguë), Loire-Atlantique, Loire Basin, France, middle Eocene (Bartonian); I, J, MNHN.F.A32522 (Faullummel coll.), Le Limon, Seine-et-Marne, Paris Basin, France,middle Eocene (Bartonian);K, paratype (protoconch), MNHN.F.A90556 (MNHN coll.), Fresville; L, MNHN.F.A90558 (Faullummel coll., protoconch), Chavençon (Carrière Tuyttens), Oise, Paris Basin, France, middle Eocene (Bartonian). Scale bars: A-J, 10 mm; K, L, 0.5 mm. Credits: A-D, I, J, P. Loubry (MNHN/CNRS); E, F, E. Robert (UCBL); G, H, K, L, L. Cazes (MNHN/CNRS)."figureDoi="http://doi.org/10.5281/zenodo.13985800"httpUri="https://zenodo.org/record/13985800/files/figure.png"pageId="29"pageNumber="522">Fig. 16K, L</figureCitation>
), suggesting two separate species with different modes of larval development. In the Bartonian from Loire-Atlantique, there are specimens showing coarse spiral cords like those of typical
<taxonomicNameid="4C274D4FFFFBE41BFE42F8A4FD3BF838"authorityName="Merle & Pacaud & Ledon & Goret"authorityYear="2024"box="[506,698,1905,1931]"class="Gastropoda"family="Muricidae"genus="Timbellus"kingdom="Animalia"order="Neogastropoda"pageId="29"pageNumber="522"phylum="Mollusca"rank="species"species="submicropterus"status="n. sp.">
<figureCitationid="131C2A49FFFBE41BFDD6F847FD79F818"box="[622,760,1937,1963]"captionStart="FIG"captionStartId="30.[132,143,1872,1889]"captionTargetBox="[147,1440,260,1687]"captionTargetId="figure-206@30.[700,1256,828,1396]"captionTargetPageId="30"captionText="FIG. 16. — Spiral cords and internal denticles of the outer lip in Timbellus submicropterus n. sp. (A-H, K) and T. micropterus (Deshayes, 1835) (I, J, L): A, B, holotype, MNHN.F.A24111 (MNHN coll.), Fresville, Manche, Normandy, France, middle Eocene (Lutetian); C, D, paratype, MNHN.F.A24126 (Munier-Chalmas coll.), Gourbesville, Manche, middle Eocene (Lutetian); E, F, paratype, UCBL-EM 33438 (Bourdot coll.), Fresville; G, H, MNHN.F.A90557 (Brébion coll.), Saint-Aignan- Grand-Lieu (Pierre-Aiguë), Loire-Atlantique, Loire Basin, France, middle Eocene (Bartonian); I, J, MNHN.F.A32522 (Faullummel coll.), Le Limon, Seine-et-Marne, Paris Basin, France,middle Eocene (Bartonian);K, paratype (protoconch), MNHN.F.A90556 (MNHN coll.), Fresville; L, MNHN.F.A90558 (Faullummel coll., protoconch), Chavençon (Carrière Tuyttens), Oise, Paris Basin, France, middle Eocene (Bartonian). Scale bars: A-J, 10 mm; K, L, 0.5 mm. Credits: A-D, I, J, P. Loubry (MNHN/CNRS); E, F, E. Robert (UCBL); G, H, K, L, L. Cazes (MNHN/CNRS)."figureDoi="http://doi.org/10.5281/zenodo.13985800"httpUri="https://zenodo.org/record/13985800/files/figure.png"pageId="29"pageNumber="522">Fig. 16G, H</figureCitation>
). Their protoconch is not preserved. We therefore attribute these specimens to
<taxonomicNameid="4C274D4FFFFBE41BFEEDF804FD90F858"authorityName="Merle & Pacaud & Ledon & Goret"authorityYear="2024"box="[341,529,2001,2027]"class="Gastropoda"family="Muricidae"genus="Timbellus"kingdom="Animalia"order="Neogastropoda"pageId="29"pageNumber="522"phylum="Mollusca"rank="species"species="submicropterus"status="n. sp.">