A Rich and Highly Endemic Decapod Crustacean Fauna from the Middle Jurassic of North‐east France

Crônier, Catherine; Courville, Philippe

doi:10.1111/j.0031-0239.2004.00393.x

Cited by 17 publications

(9 citation statements)

References 5 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although hermit crab inhabitation of now fossilized gastropods can be recognized (Walker ), the hermit crab body fossil record is dominated by chela (e.g. Aguirre‐Urreta & Olivero ; Fraaije ; Crônier & Courville ; Beschin et al . ; Schweigert et al .…”

Section: Discussionmentioning

confidence: 99%

Comparative experimental taphonomy of eight marine arthropods indicates distinct differences in preservation potential

2017

View full text Add to dashboard Cite

Global biodiversity patterns in deep time can only be understood fully when the relative preservation potential of each clade is known. The relative preservation potential of marine arthropod clades, a diverse and ecologically important component of modern and past ecosystems, is poorly known. We tackled this issue by carrying out a 205-day long comprehensive, comparative, taphonomic experiment in a laboratory by scoring up to ten taphonomic characters for multiple specimens of seven crustacean and one chelicerate species (two true crabs, one shrimp, one lobster, one hermit crab, one stomatopod, one barnacle and one horseshoe crab). Although the results are preliminary because we used a single experimental setup and algal growth partially hampered observations, some parts of hermit crabs, stomatopods, swimming crabs and barnacles decayed slowly relative to other parts, implying differential preservation potentials within species, largely consistent with the fossil record of these groups. An inferred parasitic isopod, manifested by a bopyriform swelling within a hermit crab carapace, decayed relatively fast.We found limited variation in the decay rate between conspecifics, and we did not observe size-related trends in decay rate. Conversely, substantial differences in the decay rate between species were seen after c. 50 days, with shrimps and stomatopods decaying fastest, suggesting a relatively low preservation potential, whereas the lobster, calico crabs, horseshoe crabs and barnacles showed relatively slow decay rates, suggesting a higher preservation potential. These results are supported by two modern and fossil record-based preservation potential metrics that are significantly correlated to decay rate ranks. Furthermore, we speculate that stemward slippage may not be ubiquitous in marine arthropods. Our results imply that diversity studies of true crabs, lobsters, horseshoe crabs and barnacles are more likely to yield patterns that are closer to their true biodiversity patterns than those for stomatopods, shrimps and hermit crabs.

show abstract

Section: Discussionmentioning

confidence: 99%

Comparative experimental taphonomy of eight marine arthropods indicates distinct differences in preservation potential

2017

View full text Add to dashboard Cite

show abstract

“…In fact, as far as diversity is concerned, the present faunule is comparable to those from the richest localities in the European Middle Jurassic, e.g. Etrochey (eastern France; see Crônier and Courville 2004).…”

Section: Geological Settingmentioning

confidence: 63%

“…The new species is also distinguished from O . magnificus Crônier and Courville, 2004 (middle Callovian, Côte d’Or, eastern France), in that that species has a more convex dorsal than ventral surface, a near‐straight (transversely) dactylo‐propodial articulation, underlined by a margin with an articular notch, a propodus covered with numerous small tubercles. Orhomalus medericki is also distinguished from O .…”

mentioning

confidence: 99%

A new decapod crustacean faunule from the Middle Jurassic of north‐west France

Crônier

Boursicot²

2009

Palaeontology

View full text Add to dashboard Cite

Decapod crustacean material collected recently from the lower Callovian (Middle Jurassic) in Maine-et-Loire (north-west France) comprises two new species of prosopid and one new species of tanidromitid crabs, of the genera Nodoprosopon and Tanidromites, respectively. Also represented in this faunule is a probable paguroid anomuran, in the form of isolated chelae here assigned to the genus Orhomalus, as well as appendicular remains of unknown affinity; some of the latter might belong to prosopid crabs. These anomurans and brachyurans co-occur with a diverse benthic fauna in limestones with abundant iron ooids; their main interest lies in the fact that they add valuable data to the rather poor record of Middle Jurassic decapod crustaceans.

show abstract

“…3 Systematic palaeontology MALACOSTRACA Latreille, 1802DECAPODA Latreille, 1802 ERYMIDA sensu Schram and Dixon, 2004Superfamily ERYMOIDEA Van Straelen, 1925Family ERYMIDAE Van Straelen, 1925 Preliminary remark. -Throughout the literature Erymidae has been included within Astacidea Latreille, 1802(Van Straelen, 1925Glaessner, 1969;Aguirre-Urreta, 1989;Schweigert et al, 2000;Garassino and Krobicki, 2002;Crônier and Courville, 2004;Feldmann and Titus, 2006;Garassino and Schweigert, 2006;Schweigert, 2013;Charbonnier et al, 2013), or within Glypheidea Zittel, 1885(De Grave et al, 2009Schweitzer et al, 2010;Wahle et al, 2012;Karasawa et al, 2013;Feldmann et al, 2015). Recent phylogenetic analysis of Charbonnier et al (2015) questioned the assignment of Erymidae to Glypheidea.…”

Section: Methodsmentioning

confidence: 99%

The genusErymaMeyer, 1840 (Crustacea: Decapoda: Erymidae): new synonyms, systematic and stratigraphic implications

Devillez

Charbonnier

2017

Bull. Soc. géol. Fr.

View full text Add to dashboard Cite

Among Erymidae Van Straelen, 1925 (Van Straelen V. 1925. Contribution à l'étude des crustacés décapodes de la période jurassique. Mémoires de la Classe des Sciences de l'Académie royale de Belgique 7: 1–462), typical Mesozoic crustaceans, the genus Eryma Meyer, 1840 (Meyer H. von. 1840a. Briefliche Mittheilungen. Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefactenkunde 576–587) includes the largest number of species, mainly from Jurassic deposits. However, the lack of clear diagnoses for erymid genera has led to mistakes in generic assignments and to the establishment of redundant genera. The review of the concept of Eryma herein presents an attempt to clarify its diagnosis, mainly supported by the carapace groove pattern and the morphology of chelae of the first pair of pereiopods, and to emphasize its systematic implications. Thus, we maintain the synonymy of Klytia Meyer, 1840, Bolina Münster, 1839 (Münster G. 1839. Decapoda Macrura. Abbildung und Beschreibung der Fossilen Langschwänzigen Krebse in den Kalkschiefern von Bayern. Beiträge zur Petrefaktenkunde 2: 1–88) (sensu Étallon [Étallon A. 1859. Description des crustacés fossiles de la Haute-Saône et du Haut-Jura. Bulletin de la Société géologique de France 16: 169–205]), and Erymastacus Beurlen, 1928 (Beurlen K. 1928. Die Decapoden des Schwäbischen Jura mit Ausnahme der aus den oberjurassischen Plattenkalken stammenden. Palaeontographica 70: 115–278) with Eryma. Moreover, a review of the genera Protoclytiopsis Birshtein, 1958 (Birshtein JA. 1958. Ein Vertreter der ältesten Ordo der Crustacea Decapoda Protoclitiopsis antiqua gen. nov. sp. nov. aus dem Permo West-Sibiriens. Doklady Akademii Nauk, SSSR 122: 477–480), and Galicia Garassino and Krobicki, 2002 (Garassino A, Krobicki M. 2002. Galicia marianae n. gen., n. sp. (Crustacea, Decapoda, Astacidea) from the Oxfordian (Upper Jurassic) of the Southern Polish Uplands. Bulletin of the Mizunami Fossil Museum 29: 51–59), reveals the presence of a junction between the postcervical and branchiocardiac grooves. This feature is diagnostic of Eryma and supports the integration of these genera into the synonymy of Eryma. The addition of Protoclytiopsis to the synonymy of Eryma makes Eryma antiquum (Birshtein, 1958) nov. comb. the oldest representative of the genus and of the family, extending its stratigraphic range to the Late Permian (Changhsingian). Thus, this work also emphasizes that Erymidae crossed the Permian-Triassic boundary.

show abstract

A Rich and Highly Endemic Decapod Crustacean Fauna from the Middle Jurassic of North‐east France

Cited by 17 publications

References 5 publications

Comparative experimental taphonomy of eight marine arthropods indicates distinct differences in preservation potential

Comparative experimental taphonomy of eight marine arthropods indicates distinct differences in preservation potential

A new decapod crustacean faunule from the Middle Jurassic of north‐west France

The genusErymaMeyer, 1840 (Crustacea: Decapoda: Erymidae): new synonyms, systematic and stratigraphic implications

Contact Info

Product

Resources

About