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New information on the foraminiferal genus Pfenderina

Pfenderina neocomiensis (Pfender 1938) is redescribed from loose specimens for the first time and a new species, P. trochoidea, is described. Kurnubia palastiniensis Henson 1948, Valvulinella wellingsi Henson 1948, and Valvulinella jurassica Henson 1948, are united in the genus Kurnubia Henson 1948. Kurnubia, Pfenderina Henson, and Meyendorffitna Arouze and Bizon 1958, are placed in the new family Pfenderinidae of the super-family Lituolidea.

New genera and subgenera of Mesozoic Bivalvia

The following new taxa, belonging to the families stated, are diagnosed and discussed: Palmoxytoma subgen. nov., type species, Pecten cygnipes Young & Bird, Middle Lias (Oxytomidae, now advanced from subfamily to family rank); Rhaetavicula gen. nov., type species, Avicula contorta Portlock, Rhaetic (Pteriidae ?); Ornithopecten gen. nov., type species, Aviculopecten bosniae Bittner, Middle Trias (Aviculopectinidae); Ensio gen. nov., type species, Ptychomya agassizii Lycett, Bajocian (Astartidae).

A syncarid crustacean from the Keele Beds (Stephanian) of Warwickshire

A specimen of Palaeocaris cf. retractata Calman 1932, collected by Dr. F. Raw from the Upper Carboniferous Keele Beds of the Lickey Hills, Birmingham, is briefly described. This occurrence of the genus (which is best represented in non-marine deposits of Westphalian age) is the youngest known, and enlarges the meagre fauna recorded from the Keele Beds.

Upper Cretaceous planktonic Foraminifera from the Isle of Wight, England

Seventeen species and subspecies of planktonic Foraminifera are recorded from approximately 1,000 feet of Senonian Upper Chalk from Culver Cliff, Isle of Wight. Four species, Planomalina ehrenbergi, P. rowei, Schackoina cushmani, and Globotruncana culverensis, are described as new. Planktonic-benthonic ratios suggest a neritic or upper bathyal environment for the deposition of most of the Upper Chalk. There is indication of a shallowing of the Upper Cretaceous sea at the beginning of the Belemnitella mucronata Zone.

Shell development in Spirifer trigonalis from the Carboniferous of Scotland

The neotype of Spirifer trigonalis (Martin) is described and a group of spiriferids from the Carboniferous Limestone Series of Lanarkshire, displaying wide variation in external form, is assigned to this species. The microstructure and distribution of lamellar, fibrous, and inner columnar layers is described. Extracellular secretion of the columnar layer is postulated. Interlayering of fibrous and columnar layers is attributed to pauses in growth, accompanied by retraction of the mantle and a consequent change in distribution of the layers.

A review of the evidence for a 'Nebraskan' fauna in the Scottish Carboniferous

W. Hind claimed that a lamellibranch and gastropod fauna from the lower part of the Passage Group, Upper Carboniferous of Scotland, had strong North American affinities. The specimens on which this claim was based have been re-examined and it is now thought that this fauna is indigenous to Britain. Those specimens which can be identified specifically belong to species unrecorded from America. Two new lamellibranch species, Euchondria bilstonensis and Schizodus taiti, are described.
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