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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2006
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| Online Access: | https://www.redalyc.org/articulo.oa?id=57223313 |
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| _version_ | 1866811786355802112 |
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| author | Christian Neumann |
| author_facet | Christian Neumann |
| contents | In situ fossil hermit crabs (Paguroidea) from northwest Europe and Russia. Preliminary data on new records Christian Neumann John W. M. Jagt Barry W. M. van Bakel René H. B. Fraaije Ciencias de la Tierra Europe Russia in situ Mesozoic Cenozoic For reasons still unknown, the record of fossil paguroids preserved in situ is scanty. Here wepresent four examples from the Mesozoic and Cenozoic of northwest Europe and Russia, either collectedrecently or contained in old museum collections and recognised previously, but not yet published. The fi rstconcerns a right propodus, and the imprint of the left chela, preserved within the conch of an amaltheidammonite from the upper Pliensbachian (lower spinatum Zone, apyrenum Subzone; Lower Jurassic)of Banz (southern Germany). The second example involves the remains of both chelipeds, pereiopods,shield and ?cephalic appendages preserved in an internal mould of a ?volutid gastropod from the upperMaastrichtian (Upper Cretaceous) of Kunrade (southern Limburg, the Netherlands). The third specimenalso preserves fragments of both chelipeds and pereiopods, and possibly also of shield and appendages(?),and is found in the internal mould of a volutid gastropod from the Middle Eocene of Yantarnyi (Kaliningraddistrict, Samland Peninsula, Russia; formerly Palmnicken, East Prussia), while the fourth specimen ispreserved within an internal mould of an indeterminate (?volutid) gastropod from the Miocene of Liessel(Noord-Brabant, the Netherlands) and comprises the major cheliped and some pereiopods. The taxonomicassignment of fossil paguroids has always been problematic, and in systematic descriptions the use oflump genera such as Palaeopagurus or Pagurus (sensu lato) has often been favoured. For the time being,we here adopt this policy, but hope that further preparation may reveal additional features of taxonomicvalue, enabling a more reliable generic assignment of the present material. 2006 artículo científico 1026-8774 https://www.redalyc.org/articulo.oa?id=57223313 en http://www.redalyc.org/revista.oa?id=572 Revista Mexicana de Ciencias Geológicas application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Ciencias Geológicas (México) Num.3 Vol.23 |
| format | Artículo científico |
| id | redalyc_57223313 |
| language | en |
| publishDate | 2006 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | In situ fossil hermit crabs (Paguroidea) from northwest Europe and Russia. Preliminary data on new records Christian Neumann Ciencias de la Tierra Europe Russia in situ Mesozoic Cenozoic In situ fossil hermit crabs (Paguroidea) from northwest Europe and Russia. Preliminary data on new records Christian Neumann John W. M. Jagt Barry W. M. van Bakel René H. B. Fraaije Ciencias de la Tierra Europe Russia in situ Mesozoic Cenozoic For reasons still unknown, the record of fossil paguroids preserved in situ is scanty. Here wepresent four examples from the Mesozoic and Cenozoic of northwest Europe and Russia, either collectedrecently or contained in old museum collections and recognised previously, but not yet published. The fi rstconcerns a right propodus, and the imprint of the left chela, preserved within the conch of an amaltheidammonite from the upper Pliensbachian (lower spinatum Zone, apyrenum Subzone; Lower Jurassic)of Banz (southern Germany). The second example involves the remains of both chelipeds, pereiopods,shield and ?cephalic appendages preserved in an internal mould of a ?volutid gastropod from the upperMaastrichtian (Upper Cretaceous) of Kunrade (southern Limburg, the Netherlands). The third specimenalso preserves fragments of both chelipeds and pereiopods, and possibly also of shield and appendages(?),and is found in the internal mould of a volutid gastropod from the Middle Eocene of Yantarnyi (Kaliningraddistrict, Samland Peninsula, Russia; formerly Palmnicken, East Prussia), while the fourth specimen ispreserved within an internal mould of an indeterminate (?volutid) gastropod from the Miocene of Liessel(Noord-Brabant, the Netherlands) and comprises the major cheliped and some pereiopods. The taxonomicassignment of fossil paguroids has always been problematic, and in systematic descriptions the use oflump genera such as Palaeopagurus or Pagurus (sensu lato) has often been favoured. For the time being,we here adopt this policy, but hope that further preparation may reveal additional features of taxonomicvalue, enabling a more reliable generic assignment of the present material. 2006 artículo científico 1026-8774 https://www.redalyc.org/articulo.oa?id=57223313 en http://www.redalyc.org/revista.oa?id=572 Revista Mexicana de Ciencias Geológicas application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Ciencias Geológicas (México) Num.3 Vol.23 |
| title | In situ fossil hermit crabs (Paguroidea) from northwest Europe and Russia. Preliminary data on new records |
| topic | Ciencias de la Tierra Europe Russia in situ Mesozoic Cenozoic |
| url | https://www.redalyc.org/articulo.oa?id=57223313 |