Lophius brachysomus

Lophius brachysomus is an extinct species of anglerfish in the family Lophiidae. It was described by Louis Agassiz in 1835 from the Monte Bolca locality. It became extinct during the middle Eocene (lowermost Lutetian).[1]

Lophius brachysomus
Fossil of Lophius brachysomus, an extinct fish
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Lophiiformes
Family: Lophiidae
Genus: Lophius
Species:
L. brachysomus
Binomial name
Lophius brachysomus
Agassiz, 1835
Synonyms
  • Eosladenia caucasica

Species known from three or four individuals. Habitat of this species described as place in a tropical or subtropical, moderately deep basin like a coastal lagoon in inner continental shelf regions of the central Tethys Sea, with reduced hydrodynamic energy and episodic anoxic conditions, with soft mud or sand bottoms, much like extant members of the family.

Together with Sharfia mirabilis this species is one of the oldest member of the family Lophiidae known to date.[2]

It was stated to have large triangular opercles, a facial support structure and protective covering for the gills of many bony fish, with concave anterior and anteroventral margins and a peculiar cancellous texture on its medial surface, as seen through its fossilized remains.[3]

Type specimen deposited in the National Museum of Natural History (France).[4]

References
  1. A. F. Bannikov (2004). "The First Discovery of an Anglerfish (Teleostei, Lophiidae) in the Eocene of the Northern Caucasus" (PDF). Paleontological Journal. 38 (4): 420–425.
  2. Pietsch, Theodore; Carnevale, Giorgio (2011). "A New Genus and Species of Anglerfish (Teleostei: Lophiiformes: Lophiidae) from the Eocene of Monte Bolca, Italy". Copeia. 2011 (1): 64–72. doi:10.1643/CI-10-080. S2CID 84870224.
  3. Pietsch, Theodore; Carnevlae, Giorgio (2011). "A New Genus and Species of Anglerfish (Teleostei: Lophiiformes: Lophidae) from the Eocene of Monte Bolca, Italy". Copeia. 2011 (1): 64–71. doi:10.1643/CI-10-080. JSTOR 41261851. S2CID 84870224.
  4. Alroy, John. "Lophius brachysomus Agassiz 1835 (anglerfish)". Fossilworks. Retrieved 17 December 2021.


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