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Calappilia A. Milne-Edwards 1873
No full textGenus Calappilia A. Milne-Edwards, 1873 TYPE SPECIES. — Calappilia verrucosa A. Milne-Edwards, 1873, by subsequent designation of Glaessner (1929). SPECIES INCLUDED. — See Feldmann et al. (2005). DIAGNOSIS AND DISCUSSION. — See Feldmann et al. (2005) for a recent discussion.Published as part of Schweitzer, Carrie E. & Feldmann, Rodney M., 2010, New fossil decapod crustaceans from the Remy Collection, Muséum national d'Histoire naturelle, Paris, pp. 399-415 in Geodiversitas 32 (3) on page 402, DOI: 10.5252/g2010n3a3, http://zenodo.org/record/468845
Validation of Bahiacaris Schweitzer, Santana, Pinheiro & Feldmann (Crustacea, Decapoda, Caridea) from the Cretaceous (Aptian) of Brazil
No full textSchweitzer, Carrie E., Santana, William, Pinheiro, Allysson, Feldmann, Rodney M. (2023): Validation of Bahiacaris Schweitzer, Santana, Pinheiro & Feldmann (Crustacea, Decapoda, Caridea) from the Cretaceous (Aptian) of Brazil. Zootaxa 5318 (2): 299-300, DOI: 10.11646/zootaxa.5318.2.13, URL: http://dx.doi.org/10.11646/zootaxa.5318.2.1
New Fossil Decapod Crustaceans from the Remy Collection, Muséum National D'Histoire Naturelle, Paris
No full textFIG. 3. — Fossil Stomatopoda from Monségur (Gironde, France), Ursquilla yehoachi (Remy & Avnimelech, 1955), cast of holotype, MNHN R62691. Scale bar: 1 cm.Published as part of Schweitzer, Carrie E. & Feldmann, Rodney M., 2010, New fossil decapod crustaceans from the Remy Collection, Muséum national d'Histoire naturelle, Paris, pp. 399-415 in Geodiversitas 32 (3) on page 412, DOI: 10.5252/g2010n3a3, http://zenodo.org/record/468845
Remyranina Schweitzer & Feldmann 2010, n. gen.
No full textGenus Remyranina n. gen. TYPE SPECIES. — Raninella ornata Remy, 1960. ETYMOLOGY. — Th e generic name combines the name of the author of the type species and prominent French paleontologist, Jean-Marcel Remy, and Ranina, the type genus of the family. OCCURRENCE. — Th e sole specimen was collected from probable Eocene rocks of Ivory Coast, Africa. DIAGNOSIS. — Small raninid with expanded, moderately broad fronto-orbital margin; ovoid, slightly longer than wide, with carapace ornamentation granular in anterior half and strongly terraced in posterior half. DESCRIPTION. — As for emended description of species. DISCUSSION Although the specimen referred to the new genus clearly allies it with the Ranininae, the combination of characters is unique and readily justifies creation of the new taxon. Th e genus to which it is most closely allied is Lophoranina Fabiani, 1910. Th ese two genera are the only ones in the Raninidae that are characterized by possession of a trifid rostrum and development of terraced ornamentation. However, Lophoranina tends to be widest near the front or at the level of the last anterolateral spine, whereas Remyranina n. gen. is broadest at the midlength, well posterior to the anterolateral spines. Furthermore, the anterolateral spines and the postorbital spines on Lophoranina are generally small, whereas those on Remyranina n. gen. are large. Finally, the terraced lines of Lophoranina extend nearly to the front of the carapace, well in advance of the branchiocardiac grooves, whereas those on Remyranina n. gen. are confined to the posterior half of the carapace. Th ere seems to be no other genus of raninids with which Remyranina n. gen. could be confused.Published as part of Schweitzer, Carrie E. & Feldmann, Rodney M., 2010, New fossil decapod crustaceans from the Remy Collection, Muséum national d'Histoire naturelle, Paris, pp. 399-415 in Geodiversitas 32 (3) on page 401, DOI: 10.5252/g2010n3a3, http://zenodo.org/record/468845
Eocene decapod crustacea (thalassinidea and brachyura) from Patagonia, Argentina
Full text linkRocks of the Rio Turbio Formation, exposed in southern Patagonia, Argentina, represent one of very few occurrences of Eocene rocks in the region. Decapod crustaceans collected from the unit include one species of thalassinidean mud shrimp; Turbiocheir minutospinata, new genus, new species; and three species of brachyurans; Raninoides rioturbiensis, new species; Megokkos patagoniensis, new species; and Nitotacarcinus antipodes, new species. The three brachyuran genera are also known from species in the Northeast Pacific, suggesting an amphitropical distributional pattern.Fil: Schweitzer, Carrie E.. Kent State University; Estados UnidosFil: Feldmann, Rodney M.. Kent State University; Estados UnidosFil: Casadio, Silvio Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Rodriguez Raising, Martin Eduardo. Universidad Nacional de La Pampa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Micromaiinae Beurlen 1930
No full textSubfamily MICROMAIINAE Beurlen, 1930 <p>DISCUSSION</p> <p> Beurlen (1930) provisionally united the genera <i>Micromaia</i> Bittner, 1875, <i>Mithracia</i> Bell, 1858 and <i>Pisomaia</i> Lőrenthey <i>in</i> Lőrenthey & Beurlen, 1929, within the subfamily Micromaiinae.Th e basis for this placement is not clear and the comparison of referred taxa suggests that they bear little resemblance to one another. Th e conformation of axial regions on the type species of the three genera are totally different from one another; the outlines, particularly with reference to the posterior margin are dissimilar; and the orbital architecture of the two taxa on which it is present on the type species, <i>Micromaia tuberculata</i> Bittner, 1875, and on <i>Pisomaia tuberculata</i> Lőrenthey <i>in</i> Lőrenthey & Beurlen, 1929, are different. Thus, there seems to be no unifying set of morphological criteria to justify the Micromaiinae.Further, Glaessner (1969) characterized the orbital structure of the subfamily as being like the Inachinae which he described as lacking orbits. That is certainly not the case in the several examples of <i>Micromaia</i> examined by us and well illustrated by Beschin <i>et al</i>. (1985). Investigation into the composition and validity of the subfamily is ongoing.</p> <p> Discussion of the Micromaiinae is warranted because the type species of the new genus, <i>Planobranchia</i> n. gen., was originally placed within <i>Micromaia</i>. As discussed below, the species referred to the new genus bear close resemblance to members of the Majinae, and that placement is adopted here. Because we have not examined all available representative specimens of all species of <i>Micromaia</i>, <i>Mithracia</i>, and <i>Pisomaia</i>, it is premature to comment on their relationships in detail. Th at work is in progress.</p>Published as part of <i>Schweitzer, Carrie E. & Feldmann, Rodney M., 2010, New fossil decapod crustaceans from the Remy Collection, Muséum national d'Histoire naturelle, Paris, pp. 399-415 in Geodiversitas 32 (3)</i> on page 407, DOI: 10.5252/g2010n3a3, <a href="http://zenodo.org/record/4688455">http://zenodo.org/record/4688455</a>
Malayacyclus Tang & Mychko & Feldmann & Schweitzer & Shaari & Sone 2023, gen. nov.
No full text<i>Malayacyclus</i> gen. nov. <p> <i>Malayacyclus</i> Tang, Mychko, Feldmann, Schweitzer, Shaari & Sone, 2021: 4 [unavailable].</p> <p> <b>Type species.</b> <i>Malayacyclus terengganuensis</i> sp. nov.</p> <p> <b>Diagnosis.</b> As for the type species (monotypic).</p> <p> <b>Etymology.</b> After Malaya, an older name for Peninsular Malaysia or West Malaysia and <i>Cyclus</i>, the type genus of the Cyclida. Gender masculine.</p>Published as part of <i>Tang, Hung Yung, Mychko, Eduard V., Feldmann, Rodney M., Schweitzer, Carrie E., Shaari, Hasrizal & Sone, Masatoshi, 2023, Validation of Malayacyclus Tang, Mychko, Feldmann, Schweitzer, Shaari & Sone, a cyclidan crustacean from the Early Carboniferous of Terengganu, Malaysia, pp. 439-440 in Zootaxa 5318 (3)</i> on page 439, DOI: 10.11646/zootaxa.5318.3.10, <a href="http://zenodo.org/record/8166780">http://zenodo.org/record/8166780</a>
Bahiacaris Schweitzer & Santana & Pinheiro & Feldmann 2023, n. gen.
No full text<i>Bahiacaris</i> n. gen. <p>http://zoobank.org/ urn:lsid:zoobank.org:act: 0B9F091B-F98E-49A7-B794-E250DB722900</p> <p> <i>Bahiacaris</i> Schweitzer, Santana, Pinheiro & Feldmann, 2019: 72 [unavailable].</p> <p> <b>Diagnosis</b>. Carapace high and short; rostrum about 30% total length of carapace, minutely serrate on upper margin. Scaphocerite not extending beyond rostrum. Pleonal somite 2 overlapping somites 1 and 3, variable in size. Telson sharp in lateral view, with apparent square tip in dorsal view; tip with setae; with 2 pairs of movable spines dorsally. Uropodal endopod and exopod narrow, much longer than wide; exopod inner margin weakly serrate, outer margin with setal pits. Third maxillipeds shorter than pereiopods 3–5. Pereiopods 1 and 2 shorter and with more bulbous articles than pereiopods 3–4.</p> <p> <b>Type species</b>. <i>Atyoida roxoi</i> Beurlen, 1950, by present designation.</p> <p> <b>Type age</b>. Lower Cretaceous (Aptian).</p> <p> <b>Etymology</b>. The genus name is derived from the state of Bahia in Brazil, where the specimen was collected, and ‘caris’, from the Greek for crab, a common stem in the group. Gender: feminine.</p> <p> <b>Remarks</b>. A full description and stratigraphic account of <i>Bahiacaris</i> <b>n. gen.</b> is given by Schweitzer <i>et al.</i> (2019).</p>Published as part of <i>Schweitzer, Carrie E., Santana, William, Pinheiro, Allysson & Feldmann, Rodney M., 2023, Validation of Bahiacaris Schweitzer, Santana, Pinheiro & Feldmann (Crustacea, Decapoda, Caridea) from the Cretaceous (Aptian) of Brazil, pp. 299-300 in Zootaxa 5318 (2)</i> on page 299, DOI: 10.11646/zootaxa.5318.2.13, <a href="http://zenodo.org/record/8162451">http://zenodo.org/record/8162451</a>
Malayacylus terengganuensis Tang & Mychko & Feldmann & Schweitzer & Shaari & Sone 2023, sp. nov.
No full text<i>Malayacylus terengganuensis</i> sp. nov. <p> <i>Malayacyclus terengganuensis</i> Tang, Mychko, Feldmann, Schweitzer, Shaari & Sone, 2021: 4, figs. 4, 5 [unavailable].</p> <p> <b>Type material.</b> HOLOTYPE: UMF10942, eastern side of Bukit Buchu, Terengganu, Peninsular Malaysia, 05°26.459’N, 103°02.791’E. PARATYPES: UMF10943 and 10944, eastern side of Bukit Buchu, Terengganu, Peninsular Malaysia, 05°26.848’N, 103°02.619’E.</p> <p> <b>Occurrence.</b> Early Carboniferous (Visean), Terengganu, Peninsular Malaysia.</p> <p> <b>Diagnosis.</b> Carapace large, bilaterally symmetrical; rostrum anteriorly extended and optical notches placed at the rostral extremities; anterior regions well-defined, with a pair of strong median concentric keels extended posteriorly; marginal rim wide, with three posterior spines developed at the posterior margin.</p> <p> <b>Etymology.</b> Named for Terengganu, Peninsular Malaysia, the state in which the type locality is located.</p> <p> <b>Remarks.</b> A full description and figures of <i>Malayacyclus terengganuensis</i> as well as detailed information about the type locality and horizon are provided in Tang <i>et al.</i> (2021).</p>Published as part of <i>Tang, Hung Yung, Mychko, Eduard V., Feldmann, Rodney M., Schweitzer, Carrie E., Shaari, Hasrizal & Sone, Masatoshi, 2023, Validation of Malayacyclus Tang, Mychko, Feldmann, Schweitzer, Shaari & Sone, a cyclidan crustacean from the Early Carboniferous of Terengganu, Malaysia, pp. 439-440 in Zootaxa 5318 (3)</i> on page 440, DOI: 10.11646/zootaxa.5318.3.10, <a href="http://zenodo.org/record/8166780">http://zenodo.org/record/8166780</a>
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