Eubaculites

Eubaculites; Temporal range: Santonian-Danian, ; ~85.8–64.5 Ma PreꞒ Ꞓ O S D C P T J K Pg N Late Cretaceous-Early Paleocene
	Eubaculites faujasi fossils in the Teylers Museum, The Netherlands
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Suborder:	†Ancyloceratina
Family:	†Baculitidae
Genus:	†Eubaculites; Spath, 1926
Type species
	†Eubaculites ootacodensis; (Stoliczka, 1866)
Other species
	†Eubaculites carinatus (Morton, 1834); †Eubaculites faujasi (Lamarck, 1822); †Eubaculites labyrinthicus (Morton, 1834); †Eubaculites latecarinatus (Brunnschweiler, 1966); †Eubaculites simplex (Kossmat, 1895); †Eubaculites vagina (Forbes, 1846);

Eubaculites is an extinct genus of cephalopods in the family Baculitidae and each known species was initially placed within the related genus Baculites^[1]^[2]^[3] until it was placed in a separate genus in 1926.^[4]

Eubaculites existed from the Turonian until the Danian, and is one of the very last genus of ammonites, going extinct roughly 64.5 million years ago, which was around 500,000 years after the start of the Cenozoic. Specimens found in the Maastricht Formation in The Netherlands suggest that at least one species (E. carinatus) survived the K-Pg mass extinction event, albeit being restricted to the Danian.^[5]^[6]^[7]^[8]^[9]

References

^ "Stoliczka, Ferdinand". Geologe und Paläontologe. doi:10.1553/0x00284f56.
^ P. D. Ward, W. J. Kennedy. (1993). Maastrichtian ammonites from the Biscay region (France, Spain). The Paleontological Society Memoir: 1--58.
^ R. O. Brunnschweiler. (1966). Upper Cretaceous ammonites from the Carnarvon Basin of Western Australia I: the heteromorph Lytoceratina. Bureau of Mineral Resources, Geology and Geophysics Bulletin 58:1-58
^ Spath, L. F. (1926). "On New Ammonites from the English Chalk". Geological Magazine. 63 (2): 77–83. doi:10.1017/s0016756800083710. ISSN 0016-7568. S2CID 128584535.
^ Landman, Neil H.; Goolaerts, Stijn; Jagt, John W.M.; Jagt-Yazykova, Elena A.; Machalski, Marcin (2015), Klug, Christian; Korn, Dieter; De Baets, Kenneth; Kruta, Isabelle (eds.), "Ammonites on the Brink of Extinction: Diversity, Abundance, and Ecology of the Order Ammonoidea at the Cretaceous/Paleogene (K/Pg) Boundary", Ammonoid Paleobiology: From macroevolution to paleogeography, Topics in Geobiology, vol. 44, Dordrecht: Springer Netherlands, pp. 497–553, doi:10.1007/978-94-017-9633-0_19, ISBN 978-94-017-9632-3, retrieved 2024-02-11
^ Machalski, Marcin; Heinberg, Claus (2005-12-01). "Evidence for ammonite survival into the Danian (Paleogene) from the Cerithium Limestone at Stevns Klint, Denmark". Bulletin of the Geological Society of Denmark. 52: 2005–12. doi:10.37570/bgsd-2005-52-08.
^ Machalski, M.; Jagt, J. W. M.; Heinberg, C.; Landman, N. H.; Hakansson, E. (2009). "Dańskie amonity - obecny stan wiedzy i perspektywy badań". Przegląd Geologiczny (in Polish). 57 (6): 486–493. ISSN 0033-2151.
^ W. M. Jagt, John (2012-01-01). "Ammonieten uit het Laat-Krijt en Vroeg-Paleogeen van Limburg". Grondboor & Hamer. 66 (1): 154–183.
^ "Late Maastrichtian and earliest Danian scaphitid ammonites from central Europe: Taxonomy, evolution, and extinction - Acta Palaeontologica Polonica". www.app.pan.pl. Archived from the original on 2023-09-28.

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[1] "Stoliczka, Ferdinand". Geologe und Paläontologe. doi:10.1553/0x00284f56.

[2] P. D. Ward, W. J. Kennedy. (1993). Maastrichtian ammonites from the Biscay region (France, Spain). The Paleontological Society Memoir: 1--58.

[3] R. O. Brunnschweiler. (1966). Upper Cretaceous ammonites from the Carnarvon Basin of Western Australia I: the heteromorph Lytoceratina. Bureau of Mineral Resources, Geology and Geophysics Bulletin 58:1-58

[4] Spath, L. F. (1926). "On New Ammonites from the English Chalk". Geological Magazine. 63 (2): 77–83. doi:10.1017/s0016756800083710. ISSN 0016-7568. S2CID 128584535.

[:5-5] Landman, Neil H.; Goolaerts, Stijn; Jagt, John W.M.; Jagt-Yazykova, Elena A.; Machalski, Marcin (2015), Klug, Christian; Korn, Dieter; De Baets, Kenneth; Kruta, Isabelle (eds.), "Ammonites on the Brink of Extinction: Diversity, Abundance, and Ecology of the Order Ammonoidea at the Cretaceous/Paleogene (K/Pg) Boundary", Ammonoid Paleobiology: From macroevolution to paleogeography, Topics in Geobiology, vol. 44, Dordrecht: Springer Netherlands, pp. 497–553, doi:10.1007/978-94-017-9633-0_19, ISBN 978-94-017-9632-3, retrieved 2024-02-11

[:0-6] Machalski, Marcin; Heinberg, Claus (2005-12-01). "Evidence for ammonite survival into the Danian (Paleogene) from the Cerithium Limestone at Stevns Klint, Denmark". Bulletin of the Geological Society of Denmark. 52: 2005–12. doi:10.37570/bgsd-2005-52-08.

[:1-7] Machalski, M.; Jagt, J. W. M.; Heinberg, C.; Landman, N. H.; Hakansson, E. (2009). "Dańskie amonity - obecny stan wiedzy i perspektywy badań". Przegląd Geologiczny (in Polish). 57 (6): 486–493. ISSN 0033-2151.

[:2-8] W. M. Jagt, John (2012-01-01). "Ammonieten uit het Laat-Krijt en Vroeg-Paleogeen van Limburg". Grondboor & Hamer. 66 (1): 154–183.

[:6-9] "Late Maastrichtian and earliest Danian scaphitid ammonites from central Europe: Taxonomy, evolution, and extinction - Acta Palaeontologica Polonica". www.app.pan.pl. Archived from the original on 2023-09-28.

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