Systematics and paleoecology of a new species of Varunidae H. Milne Edwards, 1853 (Decapoda: Brachyura) from the lower Eocene of Spain. Issue 2 (6th April 2022)
- Record Type:
- Journal Article
- Title:
- Systematics and paleoecology of a new species of Varunidae H. Milne Edwards, 1853 (Decapoda: Brachyura) from the lower Eocene of Spain. Issue 2 (6th April 2022)
- Main Title:
- Systematics and paleoecology of a new species of Varunidae H. Milne Edwards, 1853 (Decapoda: Brachyura) from the lower Eocene of Spain
- Authors:
- Ferratges, Fernando A
Zamora, Samuel
Aurell, Marcos - Abstract:
- Abstract: The Roda Formation (early Eocene Ypresian, Huesca, Aragón, northern Spain) records successive levels including rich decapod faunas relevant for the understanding of Ypresian decapod assemblages. Asthenognathus fernandezi n. sp. is described from one of these levels, representing the oldest report of a fossil Asthenognathinae, and the first report from the Iberian Peninsula. Fossil members of Asthenognathinae Stimpson, 1858, are difficult to distinguish from other families, especially when they lack preserved pereiopods, sternum, and abdomen. The new taxon shows important features that include reduced pereiopods, small and sub-cylindrical carapace, and absence of protruding ornamentation. This combination of characters indicates a possible early adaptation of Asthenognathus Stimpson, 1858 to life in cylindrical cavities. Asthenognathus fernandezi n. sp. occurred on poorly consolidated siliciclastic substrates associated with a rich benthic fauna, including echinoderms, molluscs, and other crustaceans.
- Is Part Of:
- Journal of crustacean biology. Volume 42:Issue 2(2022)
- Journal:
- Journal of crustacean biology
- Issue:
- Volume 42:Issue 2(2022)
- Issue Display:
- Volume 42, Issue 2 (2022)
- Year:
- 2022
- Volume:
- 42
- Issue:
- 2
- Issue Sort Value:
- 2022-0042-0002-0000
- Page Start:
- Page End:
- Publication Date:
- 2022-04-06
- Subjects:
- Crustacea -- fossil crabs -- thoracotreme brachyurans -- Ypresian
Crustacea -- Periodicals
Crustacés -- Périodiques
Crustacea
Periodicals
595.305 - Journal URLs:
- http://www.jstor.org/journals/02780372.html ↗
http://www.bioone.org/bioone/?request=get-journals-list&issn=0278-0372 ↗
https://academic.oup.com/jcb ↗
http://www.oxfordjournals.org/ ↗
http://firstsearch.oclc.org ↗
http://firstsearch.oclc.org/journal=0278-0372;screen=info;ECOIP ↗ - DOI:
- 10.1093/jcbiol/ruac013 ↗
- Languages:
- English
- ISSNs:
- 0278-0372
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4965.680000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 21241.xml