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Boxtel, Netherlands

Fraaije R.H.B.,Oertijdmuseum De Groene Poort | Klompmaker A.A.,Kent State University | Artal P.,Museo Geologico Del Seminario de Barcelona
Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen | Year: 2012

Two new paguroids, Cretatrizocheles olazagutiensis n. gen., n. sp. and Mesoparapylocheles michaeljacksoni n. gen., n. sp., both based on carapaces, are described and added to the very diverse mid-Cretaceous (Albian-Cenomanian) decapod crustacean fauna of the reefal deposits near Alsasua (Navarra, northern Spain). The description of Annuntidiogenes worfi is emended on the basis of a newly discovered, much more complete carapace. Mesoparapylocheles n. gen. is a member of the Parapylochelidae n. fam., whereas Cretatrizocheles n. gen. is a member of the Trizochelinae. These species show that the linea transversalis, introduced by neontologists for a groove lateral and/ or posterior to the cervical groove, is an evolved part of the branchiocardiac groove. © 2012 E. Schweizerbart'sche Verlagsbuchhandlung Stuttgart Germany.

Klompmaker A.A.,Kent State University | Artal P.,Museo Geologico Del Seminario de Barcelona | Fraaije R.H.B.,Oertijdmuseum De Groene Poort | Jagt J.W.M.,Natuurhistorisch Museum Maastricht
Journal of Paleontology | Year: 2011

Representatives of the family Gastrodoridae were exclusively known from Jurassic deposits in central Europe. Here, the first Cretaceous species, Gastrodorus cretahispanicus n. sp., is recorded from reefal strata of the Eguino Formation (Albeniz Unit) of Albian-Cenomanian age, in western Navarra (northern Spain). Not only does the occurrence of the new species extend the stratigraphic range of the family upward for approximately 45 million years into the mid-Cretaceous, it also constitutes the first record of gastrodorids from southern Europe. For over a century, the taxonomic position of the genus Gastrodorus has been debated. It is revised here and the family Gastrodoridae is given a full superfamily status within the Anomura. The genus Eogastrodorus is also redefined. Gastrodorids underwent a remarkable size reduction from the Middle to Upper Jurassic, which may be explained by their migration into reef environments. © 2011 The Paleontological Society.

Klompmaker A.A.,Kent State University | Fraaije R.H.B.,Oertijdmuseum De Groene Poort
Palaeontologia Electronica | Year: 2011

Fossil lobsters from the Netherlands have been described only rarely. This article describes the oldest, marine lobsters from the Netherlands in Middle Triassic Anisian (Muschelkalk) sediments cropping out in the Winterswijk quarry complex. The lobsters include the erymids Clytiopsis argentoratensis and Oosterinkia neerlandica n. gen., n. sp., and the mecochirid Pseudoglyphea cf. P. spinosa. They lived in a low energy, stressed environment with fluctuating salinity levels. This fluctuation might have caused the limited size of the specimens of Clytiopsis argentoratensis compared to related stratigraphically younger and older lobsters. In addition, the low number of specimens collected over decades and the low number of crustacean species is likely to be caused by a combination of the environment itself and a limited preservation potential. © Paleontological Society March 2011.

Several well-preserved remains of a new munidopsid anomuran, Palmunidopsis muelleri n. gen., n. sp., are described from a Late Miocene (Tortonian-Messinian) reef-associated decapod crustacean faunule of southern Cyprus. This is the first record of a Late Miocene representative of the family. The occurrence in very shallow-water, reefal limestones of the Koronia Member (Pakhna Formation) in southern Cyprus is atypical in comparison to the ecology of extant munidopsids. © 2014, Naturalis Biodiversity Center. All rights reserved.

Fraaije R.H.B.,Oertijdmuseum De Groene Poort
Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen | Year: 2014

From late Kimmeridgian (Late Jurassic) shallow-marine limestones on the Westerberg, close to Nusplingen (Swabian Alb, southern Germany), highly diverse assemblages of anomurans are recorded. The superfamily Galatheoidea is represented by abundant and relatively large carapaces of Gastrosacus wetzleri, the Paguroidea by comparatively small-sized carapaces, shields and sixth abdominal tergites that are assignable to the families Annuntidiogenidae n. fam., Diogenidae, Gastrodoridae, Parapylochelidae, Pilgrimchelidae n. fam. and Pylochelidae. Such diverse Mesozoic paguroid assemblages have never been recorded previously; they provide evidence of the relative abundance and diversity of paguroids in Late Jurassic shallow-marine settings. Species recorded are: Ammopylocheles mclaughlinae, Ammopylocheles petersi n. sp., Annuntidiogenes jurassicus n. sp., Gastrodorus spp., Housacheles ovalis n. sp., Jurapylocheles iwonae, Masticacheles minimus n. sp., Mesoparapylocheles schweigerti n. sp., Mesoparapylocheles jaegeri n. sp., Parapylochelitergites deductius n. sp., Parapylochelitergites prepustulosus n. sp., Pilgrimcheles kersteni n. sp., Pilgrimcheles vonmeyeri n. sp., Pylochelitergites westerbergensis, Scututergites anteroindentatus n. gen., n. sp., Stagmacaris subcircularis n. sp. and Ululapagurus vanbakeli n. gen., n. sp. The phylogenetic state-of-the-art, as based on carapace morphologies of Mesozoic carapace-based paguroid species known to date is outlined. The average size of Late Jurassic paguroid carapaces is considerably lesser than that of co-occurring brachyurans and galatheoids. Their small size and incomplete preservation of carapaces, with mostly only (part of) the shield retained, explains why fossil paguroids are very often overlooked in the field. © 2014 E.

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