Eryma veltheimii
Creators
- 1. Muséum national d'Histoire naturelle, Paris Centre de Recherche en Paléontologie – Paris (CR 2 P, UMR 7207), Sorbonne Université, MNHN, UPMC, CNRS, 57 rue Cuvier, F- 75231 Parix cedex 05 Paris (France)
Description
Eryma veltheimii (Münster, 1839)
(Fig. 7 D-F)
Glyphea veltheimii Münster, 1839: 22, pl. 10, fig. 1. — Fraas 1855: 94. — Glaessner 1929: 159. — Woods 1930: 80, pl. 22, figs 5-6. — Van Straelen 1936: 9. — Förster 1966: 124, fig. 23, pl. 17, figs 2, 4. — Taylor 1979: 34. — Feldmann & Titus 2006: 64. — Karasawa et al. 2013: table 1.
Eryma veltheimii – Bronn 1849: 579. — Oppel 1861: 358; 1862: 36, pl. 7, fig. 5. — Beurlen 1928: 156. — Schweigert et al. 2000: 7, fig. 1c, pl. 4, figs 1-3. — Garassino & Schweigert 2006: 8, fig. 8, pl. 1, fig. 2, pl. 11, figs 3-4. — Feldmann & Titus 2006: 64. — Fürsich et al. 2007a: table 2. — Odin et al. 2019: 652.
Clytia veltheimii – Beurlen 1928: 170.
Galicia veltheimii – Schweitzer et al. 2010: 25. — Charbonnier & Garassino 2012: 864. — Audo et al. 2014: 462. — Schweigert 2015: fig. 544.
TYPE MATERIAL. — Holotype BSPG AS VII 186. TYPE LOCALITY. — Kapfelberg quarry near Kelheim, Bavaria, Germany. TYPE AGE. — Kimmeridgian.
DESCRIPTION
Carapace
Short, spiny rostrum; fusiform intercalated plate; elongated cephalic region, representing almost half of the length of the carapace; wide, deep cervical groove, strongly inclined, joined to dorsal margin; deep gastro-orbital groove, elongated and oblique; postcervical groove not identified; wide, deep branchiocardiac groove, strongly inclined.
Pleon and uropodsSomites with subtriangular pleurites; telson with a median line and two longitudinal crests along its lateral margins, crests ended by a small spine; uropods as long as telson, with a small spine on the external margin; uropodal endopods with a longitudinal carina; uropodal exopods with a diaeresis, and a longitudinal carina.
Thoracic appendagesChelate P1; P1 propodus subrectangular, strongly elongated, dorso-ventrally compressed; presence of a strong spine at the inner distal extremity of the propodus, above the dactylus; slender fingers, progressively narrowing to their distal extremity, slightly curved inward; occlusal margin without teeth; P1 carpus short, subtriangular; thin P2-P5.
OrnamentationCarapace covered by small tubercles; intercalated plate covered by small tubercles; oblique orbital row of tubercles in cephalic region; presence of a strong antennal spine; smooth P1 propodus and fingers.
DISCUSSION
This species is known by some specimens, mainly from the Kimmeridgian plattenkalks of Wattendorf (Audo et al. 2014). Because of the compression of the holotype, it is difficult to clearly identify the grooves of the carapace. Indeed, only the cervical, gastro-orbital and branchiocardiac grooves are wellmarked. However, the assignation to Eryma is supported by the gastro-orbital groove wich is not divided in two branches and by the shape of the P1 chelae (elongated subrectangular propodus; elongated fingers, curved inward and narrowing to their distal extremity).
The difficulty to identify the carapace grooves does not allow the comparison with that of other species. The presence of a spine at the distal extremity of the inner margin of the propodus (Fig. 7D) is characteristic of this species. Moreover, the lack of ornamentation on the P1 chelae is a characteristic only found in E. veltheimii and E. westphali. A spiny rostrum like in E. veltheimii is not found in E. mandelslohi, E. modestiforme, and E. ventrosum. Garassino & Schweigert (2006) pointed out the absence of spines on the margin of the telson, contrary to E. modestiforme. However, the careful examination of the type specimen shows that two marginal spines are present (Fig. 7F). Finally, the carapace of E. veltheimii is only covered by tubercles, contrary to E. georgeii, E. mandelslohi, E. quadriverrucatum, E. ventrosum, and E. westphali.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- TYPE, MATERIAL, BSPG
- Family
- Erymidae
- Genus
- Eryma
- Kingdom
- Animalia
- Order
- Decapoda
- Phylum
- Arthropoda
- Scientific name authorship
- Munster
- Species
- veltheimii
- Taxon rank
- species
- Type status
- holotype
- Taxonomic concept label
- Eryma veltheimii (Munster, 1839) sec. Devillez & Charbonnier, 2021
References
- MUNSTER G. & GRAF ZU 1839. - Decapoda Macrura. Abbildung und Beschreibung der Fossilen langschwanzigen Krebse in den Kalkschiefern von Bayern. Beitrage zur Petrefaktenkunde 2: 1 - 88.
- FRAAS O. 1855. - Beitrage zum obersten weissen Jura in Schwaben. Jahreshefte des Vereins fur vaterlandische Naturkunde in Wurtemberg 11: 77 - 107. https: // www. biodiversitylibrary. org / page / 8002503
- GLAESSNER M. F. 1929. - Crustacea Decapoda, in POMPECKJ J. F. (ed.), Fossilium Catalogus. I. Animalia. Pars 41: 1 - 464.
- VAN STRAELEN V. 1936. - Crustaces decapodes nouveaux ou peu connus de l'epoque cretacique. Bulletin du Musee royal d'Histoire naturelle de Belgique 12 (45): 1 - 50.
- FORSTER R. 1966. - Uber die Erymiden, eine alte konservative Familie der mesozoischen Dekapoden. Palaeontographica, Abt. A, 125 (4 - 6): 61 - 175.
- TAYLOR B. J. 1979. - Macrurous Decapoda from the Lower Cretaceous of South-Eastern Alexander Island. British Antarctic Survey Scientific Reports 81: 1 - 39. http: // nora. nerc. ac. uk / id / eprint / 509204
- FELDMANN R. M. & TITUS A. L. 2006. - Eryma jungostrix n. sp. (Decapoda; Erymidae) from the Redwater Shale of the Stump Formation (Jurassic; Oxfordian) of Utah. Journal of Crustacean Biology 26 (1): 63 - 68. https: // doi. org / 10.1651 / S- 2644.1
- KARASAWA H., SCHWEITZER C. E. & FELDMANN R. M. 2013. - Phylogeny and systematics of extant and extinct lobsters. Journal of Crustacean Biology 33 (1): 78 - 123. https: // doi. org / 10.1163 / 1937240 x- 00002111
- BRONN H. G. 1849. - Index Palaeontologicus oder Ubersicht der bis jetzt bekannten fossilen Organismen. Schweizerbart, Stuttgart, 980 p. https: // doi. org / 10.5962 / bhl. title. 102095
- OPPEL A. 1861. - Die Arten der Gattungen Eryma, Pseudastacus, Magila und Etallonia. Jahreshefte des Vereins fur vaterlandische Naturkunde in Wurttemberg 17: 355 - 361. https: // www. biodiversitylibrary. org / page / 8899023
- OPPEL A. 1862. - Ueber jurassische Crustaceen (Decapoda Macrura). Palaeontologische Mittheilungen aus dem Museum des koeniglich Bayerischen Staates 1: 1 - 120. https: // www. biodiversitylibrary. org / page / 33387305
- BEURLEN K. 1928. - Die Decapoden des Schwabischen Jura mit Ausnahme der aus den oberjurassischen Plattenkalken stammenden. Palaeontographica 70: 115 - 278.
- SCHWEIGERT G., DIETL G. & ROPER M. 2000. - Die Panzerkrebse des Familie Erymidae van Straelen (Crustacea, Decapoda) aus dem Nusplinger Plattenkalk (Ober-Kimmeridgium, Schwabische Alb) im Vergleich mit frankischen Vorkommen. Stuttgarter Beitrage zur Naturkunde B (285): 1 - 25. https: // www. biodiversitylibrary. org / page / 59557644
- GARASSINO A. & SCHWEIGERT G. 2006. - The Upper Jurassic Solnhofen decapod crustacean fauna: review of the types from old descriptions. Part I. Infraorders Astacidea, Thalassinidea and Palinura. Memorie della Societa italiana di Scienze naturali e del Museo civico di Storia naturale di Milano 34 (1): 1 - 64. https: // www. biodiversitylibrary. org / page / 58176047
- FURSICH F. T., MAUSER M., SCHNEIDER S. & WERNER W. 2007 a. - Sedimentology, taphonomy, and palaeoecology of a laminated plattenkalk from the Kimmeridgian of the northern Franconian Alb (southern Germany). Palaeogeography, palaeoclimatology, Palaeoecology 243: 92 - 117. https: // doi. org / 10.1016 / j. palaeo. 2006.07.007
- ODIN G. P., CHARBONNIER S., DEVILLEZ J. & SCHWEIGERT G. 2019. - On unreported historical specimens of marine arthropods from the Solnhofen and Nusplingen Lithographic Limestones (Late Jurassic, Germany) housed at the Museum national d'Histoire naturelle, Paris. Geodiversitas 41 (17): 643 - 662. http: // geodiversitas. com / 41 / 17. https: // doi. org / 10.5252 / geodiversitas 2019 v 41 a 17
- SCHWEITZER C. E., FELDMANN R. M., GARASSINO A., KARASAWA H. & SCHWEIGERT G. 2010. - Systematic list of fossil decapod crustacean species. Crustaceana Monographs 10: 1 - 222. https: // doi. org / 10.1163 / ej. 9789004178915. i- 222
- AUDO D., CHARBONNIER S., SCHWEIGERT G. & SAINT MARTIN J. - P. 2014. - New eryonid crustaceans from the Late Jurassic Lagerstatten of Cerin (France), Canjuers (France), Wattendorf (Germany) and Zandt (Germany). Journal of Systematic Palaeontology 12 (4): 459 - 479. https: // doi. org / 10.1080 / 1477 2019.2013. 777809
- SCHWEIGERT G. 2015. - Zehnfusskrebse (Decapoda) und andere Krebstiere, in ARRATIA G., SCHULTZE H. - P., TISCHLINGER H. & VIOHL G. (eds), Solnhofen - Ein Fenster in die Jurazeit. Pfeil, Munich: 271 - 291.