On the occurrence of Iphiculus eliasi Hyzny & Gross, 2016 (Decapoda, Brachyura, Leucosioidea) from the Miocene of Catalonia (northeastern Iberian Peninsula)

Recovery of two specimens of leucosioid crabs in Langhian (middle Miocene) strata at Vilafranca del Penedes (Alt Penedes, Catalonia) and a re-examination of another leucosioid from the palaeontological collections of the Vinseum (Vilafranca del Penedes, Catalonia) have led us to consider all of these as conspecific with Iphiculus eliasi Hyzny & Gross, 2016, described first from the middle Miocene of Austria. The sternal and pleonal remains preserved in one of the Catalonian specimens allows to emend the original description of the species. Likewise, a specimen from the middle Miocene of Portugal, previously described as a paguroid, is herein transferred to this species. The occurrence of I. eliasi, either in outcrops along the northeastern and southwestern coasts of the Iberian Peninsula, corroborates the close relationship between decapod assemblages which inhabited similar palaeoenvironments in the Central Paratethys, the western Mediterranean and even the nearest Atlantic waters, during the middle Miocene

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

Animal Behavior Frozen in Time: Gregarious Behavior of Early Jurassic Lobsters within an Ammonoid Body Chamber

Direct animal behavior can be inferred from the fossil record only in exceptional circumstances. The exceptional mode of preservation of ammonoid shells in the Posidonia Shale (Lower Jurassic, lower Toarcian) of Dotternhausen in southern Germany, with only the organic periostracum preserved, provides an excellent opportunity to observe the contents of the ammonoid body chamber because this periostracum is translucent. Here, we report upon three delicate lobsters preserved within a compressed ammonoid specimen of Harpoceras falciferum. We attempt to explain this gregarious behavior. The three lobsters were studied using standard microscopy under low angle light. The lobsters belong to the extinct family of the Eryonidae; further identification was not possible. The organic material of the three small lobsters is preserved more than halfway into the ammonoid body chamber. The lobsters are closely spaced and are positioned with their tails oriented toward each other. The specimens are interpreted to represent corpses rather than molts. The lobsters probably sought shelter in preparation for molting or against predators such as fish that were present in Dotternhausen. Alternatively, the soft tissue of the ammonoid may have been a source of food that attracted the lobsters, or it may have served as a long-term residency for the lobsters (inquilinism). The lobsters represent the oldest known example of gregariousness amongst lobsters and decapods in the fossil record. Gregarious behavior in lobsters, also known for extant lobsters, thus developed earlier in earth's history than previously known. Moreover, this is one of the oldest known examples of decapod crustaceans preserved within cephalopod shells

[Proceedings of the 5th Symposium on Mesozoic and Cenozoic Decapod Crustaceans, Krakow, Poland, 2013: A tribute to Pál Mihály Müller / R.H.B. Fraaije, M. Hyžný, J.W.M. Jagt, M. Krobicki & B.W.M. van Bakel (eds.)]: Etisus evamuellerae, a new xanthid crab (Decapoda, Brachyura) from the Middle Miocene of Austria and Hungary

On the basis of several carapaces, a new species of xanthid crab, Etisus evamuellerae, is described from the Middle Miocene of the Vienna (Austria) and Great Hungarian basins. It differs from the coeval xanthids, Xantho moldavicus and Pilodius vulgaris, in having a distinctly protruding front and comparatively longer carapace. Contrary to those two species, the new one makes up for just a small percentage in the decapod crustacean assemblages studied

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, Hyžný, Valentin & Robin in Robin, Van Bakel, Hyžný, 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, Hyžný, Valentin & Robin in Robin, Van Bakel, Hyžný, 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, Hyžný, 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

La comunidad de crustáceos decápodos batiales en las canteras de Poggio i Sodi (Cuenca de Siena, Toscana, Italia)

espanolSe reporta una fauna diversa del Pleistoceno Temprano (Gelasiano tardio-Calabriano temprano) de las canteras Poggio i Sodi (Siena, Toscana, Italia central). Se realizaron analisis integrados de bioestratigrafia, sedimentologia y paleocologia y algunas inferencias paleoeoambientales son propuestas. La comunidad de decapodos estudiada es aqui referida a la zona batial superior; varios factores paleoambientales (condiciones de agua fria en el fondo marino, fondo de arcilla suave, nutrientes, energia ambiental muy baja y tasa de sedimentacion) influyeron y promovieron el asentamiento de los crustaceos. EnglishA rich decapod fauna from the Early Pleistocene (late Gelasian-early Calabrian) of Poggio i Sodi quarries (Siena, Tuscany, central Italy) is here reported. Integrated biostratigraphical, sedimentological and paleoecological analyses have been carried out, and some paleoenvironmental inferences are also proposed. The studied decapod community is herein assigned to the upper bathyal; several paleoenvironmental factors (cool water conditions at the sea floor, clay soft bottom, nutrients, very low environmental energy and sedimentation rate) influenced and promoted the crustacean settlement

[Proceedings of the 5th Symposium on Mesozoic and Cenozoic Decapod Crustaceans, Krakow, Poland, 2013: A tribute to Pál Mihály Müller / R.H.B. Fraaije, M. Hyžný, J.W.M. Jagt, M. Krobicki & B.W.M. van Bakel (eds.)]: A tribute to Pál Müller; his life, career and scientific output

An overview of Pál Müller’s 40-year palaeontological career is presented, inclusive of all decapod crustacean genera and species he erected, as well as those named after him, plus a complete listing of all papers devoted to axiideans, gebiideans, anomurans and brachyurans (co-)authored by Pál between 1974 and 2012