Martina Kočová Veselská

A systematic revision of stramentum (stramentum) pulchellum (G.B. Sowerby Jr., 1843) (Cirripedia, thoracica, stramentidae) from the bohemian cretaceous basin, the Czech Republic

We review the single species within the genus Stramentum LOGAN, 1897, Stramentum (Stramentum) pulchellum, from the Lower to Upper Turonian strata in the Bohemian Cretaceous Basin (BCB). Only seven specimens are known to date; one is housed at Krupka Museum (Teplice), the others are held in the palaeontological collections of the National Museum in Prague. These specimens were first described in 1887 by Fritsch and Kafka, but have not received attention since. Despite the fact that stramentids are rare within the BCB, all individuals available are articulated and very well preserved and, without exception, belong to S. (S.) pulchellum. The Krupka Museum specimen differs in the shape of both the scuta and the upper latera, but this is interpreted as a result of slight disarticulation. Varying numbers of peduncular scales amongst individuals are indicative of several age groups and small, juvenile stramentids occur as external moulds in one lot at the National Museum. Most Czech stramentids have been found attached to shells of the ammonite genera Lewesiceras and Collignoniceras.

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

Abstract 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.https://zoobank.org/urn:lsid:zoobank.org:pub:EAA2EB5C-BC57-41FA-93A0-046AF5FD59EB

A new barnacle, Myolepas reussi (Cirripedia, Scalpelliformes), from a near-shore, shallow-water facies in the Bohemian Cretaceous Basin, Czech Republic

Cirripede remains from upper Cenomanian to lower Turonian strata at Kaňik-Na Vrsich (Kolin area, Bohemian Cretaceous Basin, Czech Republic) are described; a new scalpelliform species, Myolepas reussi, is proposed. A palaeoecological analysis of the Na Vrsich fauna shows that intertidalsubtidal conditions prevailed at the site during the early Late Cretaceous.

Barnacles (Crustacea, Cirripedia, Thoracica) from the Bohemian Cretaceous Basin described by Fritsch and Kafka (1887), with the exclusion of the family Stramentidae

The original types of seven cirripede taxa recorded between 1885 and 1887 by J. Kafka and A. Fritsch et J. Kafka are redescribed and reillustrated. These stalked (scalpellomorph) and sessile (brachylepadomorph) species include ‘Scillaelepas’ conica (REUSS, 1844), Titanolepas tuberculata (DARWIN, 1851), Cretiscalpellum glabrum (ROEMER, 1841), Cretiscalpellum striatum (DARWIN, 1851), Arcoscalpellum angustatum (GEINITZ, 1843), Arcoscalpellum maximum (J. DE C. SOWERBY, 1829) and Brachylepas fallax (DARWIN, 1851). Information on the palaeoecology and taphonomy of these cirripedes in the Bohemian Cretaceous Basin (the Czech Republic) has been added. ■ Scalpellomorpha, Brachylepadomorpha, Cretaceous, taxonomy Received February 27, 2014 Issued December 2014 Subclass: Cirripedia BURMEISTER, 1834 Superorder: Thoracica DARWIN, 1854 Order: Scalpelliformes BUCKERIDGE ET NEWMAN, 2006 Family: Calanticidae ZEVINA, 1978 Genus: Scillaelepas SEGUENZA, 1876 (s. lat.) ‘Scillaelepas’ conica (REUSS, 1844)

The first recorded occurrence of Smilium ? parvulum Withers, 1914 (Cirripedia, Thoracica) from the Bohemian Cretaceous Basin (the Czech Republic)

A single minute cirriped carina of Smilium ? parvulum WITHERS, 1914 was recorded in deposits of the Cenomanian-Turonian boundary interval, preserved in the Velim locality (western part of the quarry – “Vaclav pocket”). This specimen represents the first recorded occurrence of the species in the Bohemian Cretaceous Basin. Cirripedia, Smilium ? parvulum, Upper Cretaceous, Bohemian Cretaceous Basin, Velim Received September 17, 2013 Issued December, 2013