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Contents

   



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1 Species  




2 Taxonomic history  




3 Fossil records  




4 Notes  




5 References  













Concavus







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From Wikipedia, the free encyclopedia
  

Concavus
Temporal range: Early Miocene–Early Pleistocene[1][2]

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Fossil of Concavus concavus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Thecostraca
Subclass: Cirripedia
Order: Balanomorpha
Family: Balanidae
Subfamily: Concavinae
Genus: Concavus
Newman, 1982[3][4]
Type species
†Balanus concavus

Bronn, 1831[a]

Concavus is a genus of barnacles.[4]

Species

[edit]

As of 2021, WoRMS recognizes the following two species:[4]

Taxonomic history

[edit]

The genus was circumscribed by William A. Newman in 1982. His original list of subgenera and species for the genus was the following:[3]

Newman noted there were multiple fossil taxa in this genus, but didn't classify any except for the type species †C. concavus.[3]

In 1992, Victor A. Zullo revised the genus. He created a new subfamily, Concavinae, with Tamiosoma Conrad, 1856 (the senior synonym of Menesiniella according to Zullo[b]), Arossia and Concavus among its genera. With his revision, Concavus only consists of the two species C. concavus and C. crassostricola.[1]

Fossil records

[edit]

This genus is known in the fossil records from the Oligocene to the Quaternary (age range: from 28.4 to 0.012 million years ago). Fossils are found in the marine strata of United States, Italy, Mexico, Morocco, Algeria, France, Haiti, Madagascar, Panama, Colombia and Slovenia.[7]

Notes

[edit]
  1. ^ a b Urszula Radwańska and Andrzej Radwański argue this species's author citation should be Darwin, 1854.[2]
  • ^ As of 2017, WoRMS recognizes both Tamiosoma and Menesiniella as valid, distinct genera.

    • References

    [edit]
    1. ^ a b c d Zullo, Victor A. (1992). "Revision of the Balanid Barnacle Genus Concavus Newman, 1982, with the Description of a New Subfamily, Two New Genera, and Eight New Species". Memoir (The Paleontological Society). 27: 1–46. JSTOR 1315604.
  • ^ a b Radwańska, Urszula; Radwański, Andrzej (2008). "Eco-taphonomy of mass-aggregated giant balanids Concavus (Concavus) concavus (Darwin, 1854) from the Lower Pliocene (Zanclean) of Rafina near Pikermi (Attica, Greece)". Acta Geologica Polonica. 58 (1): 93–94.
  • ^ a b c Newman, William A. (1982). "A Review of Extant Taxa of the "Group of Balanus concavus" (Cirripedia, Thoracica) and a Proposal for Genus-Group Ranks". Crustaceana. 43 (1): 25–36. doi:10.1163/156854082X00056. JSTOR 20103743.
  • ^ a b c Chan, Benny K. K. (2021). "Concavus Newman, 1982". WoRMS. World Register of Marine Species. Retrieved 23 August 2021.
  • ^ Bronn, Heinr. G. (1831). Italiens Tertiär-Gebilde und deren organische Einschlüsse. Heidelberg: Karl Gross. p. 127.
  • ^ Zullo, Victor A. (1984). "New Genera and Species of Balanoid Barnacles from the Oligocene and Miocene of North Carolina". Journal of Paleontology. 58 (5): 1328–1330. JSTOR 1304855.
  • ^ Fossilworks


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