An intertidal balanomorph Hexaminius venerai sp. nov. (Australobalanidae) colonizing a log of Podacarpoxylon from the La Meseta Formation (Eocene), Seymour Island, Antarctica: a glimpse of Antarctic antiquity

0496937 - GLÚ 2020 RIV GB eng J - Journal Article
Kočí, T. - Vodrážka, R. - Kočová Veselská, Martina - Buckeridge, J.
An intertidal balanomorph Hexaminius venerai sp. nov. (Australobalanidae) colonizing a log of Podacarpoxylon from the La Meseta Formation (Eocene), Seymour Island, Antarctica: a glimpse of Antarctic antiquity.
Historical Biology. Roč. 31, č. 10 (2019), s. 1341-1349. ISSN 0891-2963. E-ISSN 1029-2381
Institutional support: RVO:67985831
Keywords : Eocene * La Meseta Formation * Seymour Island * Antarctica * barnacles * Hexaminius venerai sp. nov * Podocarpoxylon
OECD category: Paleontology
Impact factor: 2.023, year: 2019
Method of publishing: Limited access
https://www.tandfonline.com/doi/full/10.1080/08912963.2018.1452206

The sessile barnacle Hexaminius venerai sp. nov. (Tetraclitoidea: Austrobalanidae) is described from the middle Eocene La Meseta Formation of Seymour Island, Antarctic Peninsula. Hexaminius venerai sp. nov. is the earliest known record of the genus in the Antarctic, the first occurrence of Hexaminius from outside Australian waters and the first record of a fossil cirripede attached to the substrate from the Antarctic. Exceptional preservation of more than 200 specimens, some of which retain opercula within the shell, is discussed. In life, the cirripedes were attached to a tree trunk tentatively identified as Podocarpoxylon, a South Hemisphere conifer. Hexaminius venerai sp. nov. is a survivor of an early phase in balanid radiation, prior to the development of strong radially-interlocked parietes.
Permanent Link: http://hdl.handle.net/11104/0301001