Bathysoma

Bathysoma; Temporal range: Early-Mid Paleocene, 63–59 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Life restoration
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Division:	Teleostei
Order:	Lampriformes
Genus:	†Bathysoma; Davis, 1890
Species:	†B. lutkeni
Binomial name
	†Bathysoma lutkeni; Davis, 1890

Bathysoma is an extinct genus of marine lampriform ray-finned fish from the early-mid Paleocene. It contains a single species, B. lutkeni from Sweden. Its fossils are common in exposures of the Danian København Limestone Formation at Limhamns kalkbrott, one of the largest quarries in northern Europe. A single specimen is also known from an erratic boulder from the Selandian Lellinge Greensand Formation of southern Sweden.

It is the second oldest lampriform known, after Nardovelifer of Campanian/Maastrichtian Italy. B. lutkeni has a disk-shaped body and an elongated head. It was originally described as a menid bony fish. Later, it was described as being a basal snake mackerel. Eventually, anatomical similarities with the turkmenids were noted, and B. lutkeni is now regarded as an extremely basal lamprid.

References

1 2 "PBDB". Paleobiology Database. Retrieved 2024-03-06.
↑ "Bulletin Volume 65 – 2017". Dansk Geologisk Forening (in Danish). 2017-02-15. Retrieved 2024-03-06.
↑ Friedman, Matt; V. Andrews, James; Saad, Hadeel; El-Sayed, Sanaa (2023-06-16). "The Cretaceous–Paleogene transition in spiny-rayed fishes: surveying "Patterson's Gap" in the acanthomorph skeletal record André Dumont medalist lecture 2018". Geologica Belgica. doi:10.20341/gb.2023.002. ISSN 1374-8505.
1 2 Bannikov, A. F. (2014-11-01). "A new genus of the family Palaeocentrotidae (Teleostei, Lampridiformes) from the Oligocene of the northern Caucasus and comments on other fossil Veliferoidei". Paleontological Journal. 48 (6): 624–632. doi:10.1134/S0031030114060021. ISSN 1555-6174.
↑ "A new species of Mene (Perciformes: Menidae) from the Paleocene of South America, with notes on paleoenvironment and a brief review of menid fishes."
↑ Brownstein, Chase Doran; Near, Thomas J (2023-10-16). "Evolutionary origins of the lampriform pelagic radiation". Zoological Journal of the Linnean Society. doi:10.1093/zoolinnean/zlad142. ISSN 0024-4082.

External links

Bathysoma at the Paleobiology Database
Lampridiformes

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[:0-1] 1 2 "PBDB". Paleobiology Database. Retrieved 2024-03-06.

[2] "Bulletin Volume 65 – 2017". Dansk Geologisk Forening (in Danish). 2017-02-15. Retrieved 2024-03-06.

[3] Friedman, Matt; V. Andrews, James; Saad, Hadeel; El-Sayed, Sanaa (2023-06-16). "The Cretaceous–Paleogene transition in spiny-rayed fishes: surveying "Patterson's Gap" in the acanthomorph skeletal record André Dumont medalist lecture 2018". Geologica Belgica. doi:10.20341/gb.2023.002. ISSN 1374-8505.

[:1-4] 1 2 Bannikov, A. F. (2014-11-01). "A new genus of the family Palaeocentrotidae (Teleostei, Lampridiformes) from the Oligocene of the northern Caucasus and comments on other fossil Veliferoidei". Paleontological Journal. 48 (6): 624–632. doi:10.1134/S0031030114060021. ISSN 1555-6174.

[5] "A new species of Mene (Perciformes: Menidae) from the Paleocene of South America, with notes on paleoenvironment and a brief review of menid fishes."

[6] Brownstein, Chase Doran; Near, Thomas J (2023-10-16). "Evolutionary origins of the lampriform pelagic radiation". Zoological Journal of the Linnean Society. doi:10.1093/zoolinnean/zlad142. ISSN 0024-4082.