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A Lower Carboniferous brachiopod fauna from the Manifold Valley, Staffordshire

A silicified brachiopod fauna from North Staffordshire is described and thought to be early Visean. It includes the new taxa Lambdarina manifoldensis and Crurithyris nastus, and other species showing North American Mississippian affinities. The fauna may indicate a relatively shallow-water environment with a low rate of sedimentation.

Review of the stratigraphy of the Wenlock Series in the Welsh Borderland and South Wales

The stratigraphy and correlation of the Wenlock Series (Silurian) in its type area of the Welsh Borderland and also in South Wales are reviewed in the light of new faunal information. Two correlation charts are presented to relate the various lithostratigraphical sequences to one another and to the standard graptolite zones. The Wenlock Limestone is shown to be diachronous from the lundgreni to the ludensis Zone between Dudley and Ludlow. Palaeo-geographical maps are constructed for early and late Wenlock times.

The conodont apparatus as a food-gathering mechanism [The Seventeenth Annual Address, delivered March 1974]

The possible functioning, rather than the zoological affinity, of the conodonts is discussed. Symmetry considerations, as well as arrangement of conodonts in apparatuses found on bedding planes, are best compatible with arrangement of the elements about the mouth. Homology between the elements indicates that certain conclusions may apply generally. Many kinds of element could scarcely have functioned if turned with denticles toward the inside, hence the hypothetical animal is figured with denticles toward the outside.

The Australian tabulate coral genus Hattonia

Hattonia Jones, reinterpreted on type and topotype material of Hattonia etheridgei Jones, the type species, is a Silurian and Devonian favositid. It is characterized by distant groups of tabulae developed at the same level throughout the corallum and by pores which are confined to these levels. The genus is endemic to eastern Australia. Two new species, H. fascitabulata from the lower Gedinnian of New South Wales and H. spinosa from the Emsian of north Queensland, are referred to it.

The affinities of the trilobite genus Scharyia, with a description of two new species

New discoveries of the Trilobite Scharyia have led to a critical reappraisal of the genus, in particular the nature of the cedariiform facial suture. Scharyia has been considered by a number of authors to belong to the Proetidae. but it is argued here that it has closer affinities with the Otarionidae. Two new species are described, S. siceripotrix from the Silurian (Ludlow) of the British Isles and S. heothina from the Ordovician (Ashgill) of Sweden, the latter being the first record of the genus in the Ordovician.

Chonophyllinid corals from the Silurian of New South Wales

Ketophyllum attenuatum sp. nov. from the Rosyth Limestone (Upper Llandovery) of central N.S.W. is described. Mictocystis endophylloides Etheridge 1908, from the Quarry Creek Limeslone (Upper Llandovery) in central N. S. W. is redescribed and a lectotype chosen. Paralectotype material of Yassia enormis (Etheridge 1913) from strata of Ludlow age in the Yass district, southern N.S.W. is reviewed and illustrated. The close affinities of the genera Ketophyllum, Mictocystis, and Yassia are emphasized and their taxonomic status and relationships reviewed.

A new Quaternary ostracod genus from Argentina

A new genus, Pampacythere (Limnocytheridae), is described from the so-called marine transgressions of Quaternary age in the cordon-litoral between Buenos Aires and Mar del Plata. The genus is based upon two species, P. multiperforata and P. solam. The relationships between Pampacythere and other members of the Limnocytheridae are discussed. It is concluded from an analysis of their faunal associations, with both ostracods and other invertebrates, that the environment in which the two species lived was of brackish-water, probably oligohaline to meiomeso-haline.
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