Cuchiadromites jadeae, a new genus and species of primitive crab (Crustacea: Decapoda: Podotremata) from the Aptian of Cantabria (Spain), with comments on its peculiar surface ornament

A new genus and new species of decapod brachyuran, Cuchiadromites jadeae, is recorded and described herein from the Lower Aptian (Early Cretaceous) Patrocinio Formation (Deshayesites forbesi Ammonite Zone) of the coastal cliffs near Cuchía (Cantabria, Spain). Cuchiadromites jadeae gen. et sp. nov., is the fourth species of brachyuran recovered in this locality. The dorsal carapace of the sole specimen preserves sufficient diagnostic characters that allow placement in the family Longodromitidae. The present species exhibits a profuse dorsal ornamentation of fungiform granules that form cauliflower-shaped clusters reminiscent of the ornamentation seen in fossil and extant species of different eubrachyuran families, for instance Parthenopidae or Dairidae, and also in the anomuran families Paguridae or Xylopaguridae, but not described before in podotreme taxa. This could be due to convergence in groups far distant in geological time and systematic placement

Mesozoic-Cenozoic crustaceans preserved within echinoid tests and bivalve shells

Associations of crustaceans with echinoids (Echinodermata) and bivalves (Mollusca) are not uncommon in modern oceans. Here we record the occurrence of anomurans, brachyurans and isopods within echinoid tests and bivalve shells from the Middle Jurassic of France, the Upper Jurassic of the Czech Republic, the Eocene of Croatia and the Miocene of Austria. Additionally a new genus and species of fossil cirolanid isopod from the Middle Jurassic of France is described. The present examples are interpreted as crustacean sheltering, probably for safe and undisturbed moulting (ecdysis), within a vacant host test or shell. However, accidental association (washed in) or even food remains cannot be ruled out entirelyWeb of Science90361160

Origin, early evolution and palaeoecology of Gymnopleura (Crustacea, Decapoda): Basal palaeocorystoid crabs from the Upper Jurassic-Lower Cretaceous of central Europe

Recent fieldwork has yielded new decapod crustacean material from Upper Jurassic-lowest Cretaceous bioclastic limestones at Kotou.c quarry near.Stramberk (Moravia, northeastern Czech Republic). Two specimens in this lot can be ascribed to the superfamily Palaeocorystoidea and represent the oldest gymnopleuran crabs known to date. A new genus and species, Moravacarcinus stramberkensis, are here erected and assigned to a new subfamily, Moravacarcininae, to accommodate this basal necrocarcinid. Our re-examination of Late Jurassic primitive crabs from southern Germany has resulted in the discovery of another early member of this group, here referred to a new genus, Juranecrocarcinus, as J. angulosum (Wehner, 1988). These new finds demonstrate that palaeocorystoids originated within shallow-water, reefal settings in the Upper Jurassic reef belt across central and southern Europe. We hypothesise that members of basal necrocarcinid subfamilies (Paranecrocarcininae and Moravacarcininae subfam. nov.), and thus the Gymnopleura, were derived from a dynomeniform ancestor which adapted to and became modified for a burying mode of life. Possible candidates are, for instance, the goniodromitid genus Cycloprosopon L.orenthey, in L.orenthey and Beurlen, 1929 and the longodromitid genera Longodromites Patrulius, 1959 and Planoprosopon Schweitzer, Feldmann and Laz.ar, 2007. The evolutionary pathways and palaeogeographical history of Mesozoic gymnopleurans were markedly influenced by the planktonic revolution which considerably enriched deeper-marine clastic sediments with nutrients from the Late Jurassic onwards.Web of Science564art. no. 11017

Comment on the letter of the Society of Vertebrate Paleontology (SVP) dated April 21, 2020 regarding “Fossils from conflict zones and reproducibility of fossil‑based scientific data”: Myanmar amber

Non peer reviewe

Cenomanocarcinidae n. fam., une nouvelle famille de Podotremata du Crétacé (Crustacea, Decapoda), et commentaires sur les familles apparentées

Des spécimens exceptionellement bien préservés de Cenomanocarcinus vanstraeleni Stenzel, 1945 du Turonien du Mexique et de Colombie, d’un remarquable C. aff. vanstraeleni du Coniacien de Colombie et de Cenomanocarcinus sp. de l’Albien supérieur de Colombie permettent l’établissement d’une nouvelle famille podotrème, Cenomanocarcinidae n. fam., proche des Palaeocorystidae Lőrenthey in Lőrenthey &amp; Beurlen, 1929, et son attribution à la sous-section Raninoidia De Haan, 1839. La nouvelle famille inclut le genre crétacé Cenomanocarcinus Van Straelen, 1936, éteint à la fin du Crétacé, et, sous réserve, Campylostoma Bell, 1858 de l’éocène inférieur. Hasaracancer Jux, 1971 est placé dans la synonymie de Cenomanocarcinus. Le statut des Necrocarcinidae Förster, 1968 est révisé, et cette famille est également assignée aux Podotremata bien que le gonopore femelle n’ait pu être observé dans le matériel disponible. Le transfert des Cenomanocarcinidae n. fam., des Necrocarcinidae emend. et, préliminairement, des Orithopsidae Schweitzer, Feldmann, Fam, Hessin, Hetrick, Nyborg &amp; Ross, 2003 ainsi que de Camarocarcinus Holland &amp; Cvancara, 1958 aux côtés des Palaeocorystidae est discuté. Une standardisation est proposée ici pour homogénéiser la désignation des taxa podotrèmes de rang supérieur, à savoir : Dromioidia de Haan, 1833 (= Dromiacea De Haan, 1833, émendation standardisée), Homoloidia De Haan, 1839, Cyclodorippoidia Ortmann, 1892, et Raninoidia De Haan, 1839.Exceptionally well-preserved specimens of Cenomanocarcinus vanstraeleni Stenzel, 1945 from the Turonian of Mexico and Colombia, plus a remarkable Colombian C. aff. vanstraeleni of Coniacian age, as well as Cenomanocarcinus sp. from the upper Albian of Colombia, provide the basis for the definition of the Cenomanocarcinidae n. fam., a new podotreme family which is close to the Palaeocorystidae Lőrenthey in Lőrenthey &amp; Beurlen, 1929 and assigned to the subsection Raninoidia De Haan, 1839. The new family includes the Cretaceous Cenomanocarcinus Van Straelen, 1936, which went extinct at the end of the Cretaceous, and, with reservation, the early Eocene Campylostoma Bell, 1858. Hasaracancer Jux, 1971 is considered synonymous with Cenomanocarcinus. The status of the Necrocarcinidae Förster, 1968 is revised, being also assigned to the Podotremata, albeit with a query because the female gonopore could not be observed in any specimen available. Inclusion of the Cenomanocarcinidae n. fam., Necrocarcinidae emend. and, preliminarily, the Orithopsidae Schweitzer, Feldmann, Fam, Hessin, Hetrick, Nyborg &amp; Ross, 2003 and Camarocarcinus Holland &amp; Cvancara, 1958 next to the Palaeocorystidae is discussed. A standardization is proposed here to homogenize the designation of the higher-ranked podotreme taxa, as follows: Dromioidia de Haan, 1833 (= Dromiacea De Haan, 1833, emended from standardization), Homoloidia De Haan, 1839, Cyclodorippoidia Ortmann, 1892, and Raninoidia De Haan, 1839.</p

Cenomanocarcinus oklahomensis

&lt;i&gt;Cenomanocarcinus oklahomensis&lt;/i&gt; (Rathbun, 1935) &lt;p&gt; &lt;i&gt;Remarks&lt;/i&gt;&lt;/p&gt; &lt;p&gt; &lt;i&gt;Necrocarcinus oklahomensis&lt;/i&gt; Rathbun, 1935 (Rathbun 1935: 44, pl. 11, fig. 9; see also Fraaije 2002: 913), upper Albian of the Western Interior (USA), was transferred to &lt;i&gt;Cenomanocarcinus&lt;/i&gt; by Van Straelen (1936: 39), Stenzel (1945: 449), then by F&ouml;rster (1968: 169, 176), Schweitzer &lt;i&gt;et al.&lt;/i&gt; (2003a: 36), and Vega &lt;i&gt;et al&lt;/i&gt;. (2007: 412, 417). The species is known by the holotype only, with a carapace characterized by marked longitudinal and epibranchial ridges, and not preserving any spines on lateral margins. Despite the fact that Stenzel (1945: table p. 449) indicated on the dorsal ridges of &lt;i&gt;C. oklahomensis&lt;/i&gt; the same number of tubercles as in &lt;i&gt;C. inflatus&lt;/i&gt;, he did not synonymise the two species (see under &lt;i&gt;C. beardi&lt;/i&gt;, below).&lt;/p&gt;Published as part of &lt;i&gt;Guinot, Danièle, Vega, Francisco J. &amp; Van Bakel, Barry W. M., 2008, Cenomanocarcinidae n. fam., a new Cretaceous podotreme family (Crustacea, Decapoda, Brachyura, Raninoidia), with comments on related families, pp. 681-719 in Geodiversitas 30 (4)&lt;/i&gt; on pages 681-719, DOI: &lt;a href="http://zenodo.org/record/4651166"&gt;10.5281/zenodo.4651166&lt;/a&gt

Pseudonecrocarcinus Forster 1968

Genus &lt;i&gt;Pseudonecrocarcinus&lt;/i&gt; F&ouml;rster, 1968 &lt;p&gt; &lt;i&gt;Pseudonecrocarcinus&lt;/i&gt; F&ouml;rster, 1968: 180. &mdash; Bishop 1986: 136. &mdash; Wright 1997: 135. &mdash; Schweitzer &amp; Feldmann 2000: 246 key, fig. 1; 2005: 34. &mdash; Larghi 2004: 530.&lt;/p&gt; &lt;p&gt; &lt;i&gt;Paranecrocarcinus&lt;/i&gt; (&lt;i&gt;Pseudonecrocarcinus&lt;/i&gt;) &ndash; Wright &amp; Collins 1972: 71. &mdash; Collins &lt;i&gt;et al.&lt;/i&gt; 1995: 195. &mdash; Collins 2002: 85.&lt;/p&gt; &lt;p&gt; TYPE SPECIES. &mdash; &lt;i&gt;Necrocarcinus quadriscissus&lt;/i&gt; Noetling, 1881 by monotypy Noetling 1881: 368, pl. 20, fig. 4a, b); senior synonym of &lt;i&gt;Dromiopsis ubaghsi&lt;/i&gt; Forir, 1889 (Forir 1889: 452, pl. 14, fig. 3); upper Maastrichtian of Maastricht.&lt;/p&gt; &lt;p&gt; &lt;i&gt;Remarks&lt;/i&gt;&lt;/p&gt; &lt;p&gt; Wright (1997: 135) was &ldquo;inclined to abandon the distinction of the two subgenera&rdquo;, based on post-rostral slits found in the type species of both &lt;i&gt;Paranecrocarcinus&lt;/i&gt; and &lt;i&gt;Pseudonecrocarcinus&lt;/i&gt;, thus a not really distinctive feature of the latter. According to Fraaije (2002: 916) &ldquo; &lt;i&gt;Pseudonecrocarcinus&lt;/i&gt; has thus lost its validity as a genus&rdquo;, since it is a junior synonym of &lt;i&gt;Paranecrocarcinus&lt;/i&gt;. Schweitzer &lt;i&gt;et al.&lt;/i&gt; (2003a: 32, 36) misinterpreted Fraaije&rsquo;s words and regarded them as separate genera considering that &ldquo;the possession of these carapace slits is highly distinctive&rdquo; without realising that both genera possess them. Concludingly Wright (1997), Fraaije (2002), and Schweitzer &lt;i&gt;et al.&lt;/i&gt; (2003a) agreed on the synonymy.&lt;/p&gt; &lt;p&gt; Thus &lt;i&gt;Pseudonecrocarcinus stenzeli&lt;/i&gt; Bishop, 1983 (Bishop 1983a: 49, fig. 8B, pl. 1, figs 3-5; 1986: 136, table 1), lower Albian of Texas, has to be assigned to &lt;i&gt;Paranecrocarcinus&lt;/i&gt;.&lt;/p&gt;Published as part of &lt;i&gt;Guinot, Danièle, Vega, Francisco J. &amp; Van Bakel, Barry W. M., 2008, Cenomanocarcinidae n. fam., a new Cretaceous podotreme family (Crustacea, Decapoda, Brachyura, Raninoidia), with comments on related families, pp. 681-719 in Geodiversitas 30 (4)&lt;/i&gt; on pages 681-719, DOI: &lt;a href="http://zenodo.org/record/4651166"&gt;10.5281/zenodo.4651166&lt;/a&gt

Dinocarcinus velauciensis Van Bakel & Hyžný & Valentin & Robin 2023, gen. nov., sp. nov.

Dinocarcinus velauciensis gen. nov., sp. nov. urn:lsid:zoobank.org:act: A4528EE1-0899-46E7-AB72-A1D763D8A4D1 Dinocarcinus velauciensis Van Bakel, Hy&zcaron;ný, Valentin & Robin in Robin, Van Bakel, Hy&zcaron;ný, Cincotta, Garcia, Charbonnier, Godefroit & Valentin, 2019: 4, figs. 1–3 [unavailable]. Type material. HOLOTYPE: MMS /VBN.00.004; PARATYPES 1–4: MMS /VBN.02.94, 09.132d, 12.A.003, 12.A.006 (see Robin et al. 2019: table 1), housed in the palaeontological collections of Velaux municipal institutions (Musée du Moulin Seigneurial /Velaux-La Bastide Neuve). Etymology. From the type locality: Velaux-La Bastide Neuve, Bouches-du-Rhône, southern France. Diagnosis. As for genus. Remarks. A full description and figures of Dinocarcinus velauciensis gen. nov., sp. nov. is given in Robin et al. (2019).Published as part of Van Bakel, Barry W. M., Hyžný, Matúš, Valentin, Xavier & Robin, Ninon, 2023, Validation of Dinocarcinus velauciensis Van Bakel, Hyžný, Valentin & Robin, a fossil crab (Crustacea, Decapoda, Brachyura) from Upper Cretaceous (Campanian) continental deposits of Velaux and vicinity, southern France, pp. 483-484 in Zootaxa 5315 (5) on pages 483-484, DOI: 10.11646/zootaxa.5315.5.5, http://zenodo.org/record/814241

Dinocarcinus Van Bakel & Hyžný & Valentin & Robin 2023, gen. nov.

Dinocarcinus gen. nov. urn:lsid:zoobank.org:act: 96EBB8A3-15BE-4E6D-9461-981A163ECED6 Dinocarcinus Van Bakel, Hy&zcaron;ný, Valentin & Robin in Robin, Van Bakel, Hy&zcaron;ný, Cincotta, Garcia, Charbonnier, Godefroit & Valentin, 2019: 2, figs. 1–3 [unavailable]. Etymology. Denoting the actual association with dinosaur (ornithopodan) remains. Type species. Dinocarcinus velauciensis gen. nov., sp. nov. Diagnosis. Chelae large and massive. Fingers gaping, arched, with strong teeth, proximal tooth molariform. Fixed finger dorsal surface with single ‘pitted groove’, palm surface smooth, articulation with dactylus oblique, prominent (in accordance with Van Bakel, Hy&zcaron;ný, Valentin & Robin in Robin et al. 2019).Published as part of Van Bakel, Barry W. M., Hyžný, Matúš, Valentin, Xavier & Robin, Ninon, 2023, Validation of Dinocarcinus velauciensis Van Bakel, Hyžný, Valentin & Robin, a fossil crab (Crustacea, Decapoda, Brachyura) from Upper Cretaceous (Campanian) continental deposits of Velaux and vicinity, southern France, pp. 483-484 in Zootaxa 5315 (5) on page 483, DOI: 10.11646/zootaxa.5315.5.5, http://zenodo.org/record/814241

Basadromia Artal, Bakel, Domínguez & Gómez, 2016, n. gen.

Basadromia n. gen. Type species. Basadromia longifrons n. sp. Diagnosis. Small carapace, longitudinally subelliptical in outline, slightly longer than wide, maximum width at position of epibranchial region; markedly convex in both directions; front fairly projecting beyond orbits, narrow, with notable V-shaped notch and deep groove, bearing four long, subtriangular teeth plus short rostral tooth situated in lower plane; orbits small, anterolaterally disposed, supraorbital margin with strong supraorbital (inner orbital) tooth, anterior portion of supraorbital margin nearly vertical; lateral margins of carapace broadly arched, with short, subtle teeth; posterior margin narrow, being narrower than orbitofrontal margin; dorsal surface strongly areolated, uniformly granular; dorsal regions very well defined and individualised by swellings and grooves; epibranchial regions large, elongated, posterior portion distinctly swollen; mesogastric region transversely subelliptical, swollen, with subtle axial depression, broad subtriangular anterior extension; epibranchial region large, divided into 2 portions, axial portion strongly swollen; cardiac region large, markedly swollen, inverted subpentagonal in shape; cervical, branchial grooves clearly marked. Dorsal surface of carapace, chelipeds densely, uniformly granular. Etymology. From Basa, the name of the valley in the province of Huesca (Aragón, Spain) from where the new form was recovered, and - dromia, the common suffix for members of the family and superfamily. Remarks. The new genus differs from all extinct and extant members assigned to the Dromioidea (Guinot and Tavares, 2003; Ng et al., 2008; Karasawa et al., 2011; McLay, 2001 a, b; Schweitzer et al., 2012) in having four strong, conspicuously long, frontal teeth, a narrow posterior carapace margin, the posterior portion of the protogastric region being nearly hemispherical and the axial portion of the epibranchial region strongly swollen, subelliptical in shape.Published as part of Artal, Pedro, Van Bakel, Barry W. M., Domínguez, José L. & Gómez, Guillermo, 2016, A new dromiid crab (Crustacea, Brachyura, Dromioidea) from the Upper Eocene of Huesca (Aragón, northern Spain), pp. 438-446 in Zootaxa 4061 (4) on page 440, DOI: 10.11646/zootaxa.4061.4.8, http://zenodo.org/record/27040