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Palaeopentacheles

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Palaeopentacheles
Temporal range:
Late Jurassic (Kimmeridgian-Tithonian),
~150 Ma[1]
Palaeopentacheles roettenbacheri
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Superfamily: Eryonoidea
Family: †Palaeopentachelidae
Ahyong, 2009[4]
Genus: †Palaeopentacheles
von Knebel, 1907[3]
Species:
†P. roettenbacheri
Binomial name
†Palaeopentacheles roettenbacheri
Synonyms[2]
  • Eryon Röttenbacheri Münster, 1839

Palaeopentacheles is an extinct, monospecific genus of decapods in the monogeneric family Palaeopentachelidae[4] that lived in what is now modern day Bavaria and Baden-Württemberg around 150 Ma.[1][5] It is known from fossils discovered in the Nusplingen Limestone and Solnhofen Limestone formations.

Classification history

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The type species, P. roettenbacheri, was initially placed in the genus Eryon upon its 1839 description by Georg zu Münster.[6] However, a 1907 study by Walther von Knebel would later move the species to its own genus, Palaeopentacheles.[7]

In 1923, a second species, P. ovalis, was described by Victor van Straelen.[8] However, in 1925, it was moved to its own genus, Willemoesiocaris, by the same author.[9]

A third species from the Oligocene, P. starri, was described in 2001.[10] Its assignment to the genus was tentative due to the poor condition its holotype was found in, and a later study revealed that the holotype was actually a moult, possibly from a nephropoid lobster.[11]

Palaeopentacheles was previously placed in Polychelidae, but a 2009 study showed that it lay outside the Coleiidae + Polychelidae clade, so Palaeopentacheles was instead placed in the new family Palaeopentachelidae.[12]

References

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  1. ^ a b Eiler, Stefan M.; Haug, Joachim T. (1 March 2016). "Larval development of fossil polychelidan crustaceans, exemplified by the 150 million years old species Palaeopentacheles roettenbacheri". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 279 (3): 295–310. Bibcode:2016NJGPA.279..295E. doi:10.1127/njgpa/2016/0557. ISSN 0077-7749. S2CID 204735945.
  2. ^ a b "Palaeopentacheles roettenbacheri (Münster, 1839) †". DecaNet. World Register of Marine Species. Retrieved 23 September 2025.
  3. ^ "Palaeopentacheles von Knebel, 1907 †". DecaNet. World Register of Marine Species. Retrieved 20 March 2026.
  4. ^ a b "Palaeopentachelidae Ahyong, 2009 †". DecaNet. World Register of Marine Species. Retrieved 23 September 2025.
  5. ^ Palaeopentacheles in the Paleobiology Database
  6. ^ Münster, Georg zu (1839). "Decapoda Macroura. Abbildung und Beschreibung der fossilen langschwänzigen Krebse in den Kalkschiefern von Bayern". Beiträge zur Petrefakten-Kunde (in German). 2: 1–88, pls. 1-30. doi:10.5962/bhl.title.120022.
  7. ^ von Knebel, Walther (1907). "Die Eryoniden des oberen Weissen Jura von Süddeutschland". Archiv für Biontologie (in German). 2: 195–233, pls. 11-15.
  8. ^ Van Straelen, V. (1923). "Description de Crustacés Décapodes Macroures nouveaux des terrains secondaires". Annales de la Société Royale Zoologique de Belgique (in French). 53: 84-93 [imprint 1922].
  9. ^ 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. 2 (in French). 7 (1): 1–462, pls. 1-10.
  10. ^ Schweitzer, C.E.; Feldmann, R.M. (2001). "New Cretaceous and Tertiary decapod crustaceans from western North America" (PDF). Bulletin of the Mizunami Fossil Museum. 28: 173–210.
  11. ^ Haug, Joachim T.; Audo, Denis; Haug, Carolin; Saad, Pierre Abi; Petit, Gilles; Charbonnier, Sylvain (September 2015). "Unique occurrence of polychelidan lobster larvae in the fossil record and its evolutionary implications" (PDF). Gondwana Research. 28 (2): 869–874. doi:10.1016/j.gr.2014.05.004. ISSN 1342-937X. S2CID 86697114.
  12. ^ Martin, Joel W.; Crandall, Keith A.; Felder, Darryl L., eds. (2009). Decapod Crustacean Phylogenetics (PDF). Crustacean Issues. Vol. 18. Boca Raton: CRC Press. ISBN 978-1-4200-9258-5. LCCN 2009001091. OCLC 231581346.
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