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Further specimens of the Downtonian Ostracoderm Corvaspis kingi Woodward are described, and the genus is shown to belong to the family Psammosteidae. The variation of ornamentation seen in Corvaspis is used to demonstrate the relationship between the three main types of growth of dermal plates known in the Heterostraci.

• Read more about The Downtonian ostracoderm Corvaspis kingi Woodward, with notes on the development of dermal plates in the Heterostraci

Of the thirteen nominal species of squamulate favositid described from the Middle Palaeozoic of Eastern Australia and New Zealand, two, Favosites squamuliferus Etheridge 1899 and F. grandiporus Etheridge 1890, are recognized as discrete species, and one closely related non-squamulate species, F. moonbiensis Etheridge 1899, is also recognized. F. squamuliferus is interpreted as an extremely variable species containing eight arbitrarily separated formae. Eleven European and Russian species are noted which fall within the range of variation of F. squamuliferus and F.

• Read more about The Middle Palaeozoic squamulate favositids of Victoria

Nervostrophia borealis, N. maclareni, and Cyrtina lapidea are described and figured as new species from the Hay River formation of the North West Territories, Canada. Douvillinella ? crickmayi is described and figured as a new species from the lower Grumbler formation of the same area. All the fossils are of Frasnian age.

• Read more about New species of brachiopods from the Upper Devonian of Hay River, western Canada

Carbonicola antiqua Hind (non Brown) and C. elegans (Kirkby) are redescribed from the Calciferous Sandstone Series of East Fife, and Anthraconaia? kirki sp. nov. proposed. Variation of the shells at different localities is discussed and the significance of faunal associations is assessed.

• Read more about Lower Carboniferous non-marine lamellibranchs from East Fife, Scotland

An ascending sequence of strata, comprising the Petherwin Beds, the Stourscombe Beds, and the Yeolmbridge Beds, is noted at the Devonian-Carboniferous boundary. The ammonoid and trilobite fauna of these beds is described.The genus Kenseyoceras and the contained subgenus K. (Mayneoceras) are proposed, and Epiwocklumeria is redefined. The following species are redescribed or proposed:Petherwin Beds (Platyclymenia and Clymenia Zones): P. (Platyclymenia) valida (Phillips), P. (Platyclymenia) pattisoni (M'Coy), Costaclymenia muensteri (Ansted).

• Read more about Ammonoids and trilobites from the Upper Devonian and lowest Carboniferous of the Launceston area of Cornwall

Specimens of Sobolewia from the Givetian of Cornwall and Algeria are described which show a regular pitting on the internal moulds. The same phenomenon is noted on an Algerian Eifelian goniatite and also on German specimens of Sellanarcestes from the Emsian and Eifelian and on an Eifelian Anarcestes. The pits, which are commonly arranged in sub-radial rows, are interpreted as formed in life as mound-like growths on the inside of the anterior part of the body chamber shell, but not along the apertural margin. Several hypotheses on their origin are discussed.

• Read more about Abnormal growths in some Devonian goniatites

• Read more about Glass fibre resin casts of fossils

Several species of ostracods of the genera Beyrichia, Kloedenia, Leperditia, and Primitia have been described from Upper Silurian strata of the Stonehouse formation near Arisaig, Nova Scotia. Previous indentifications of some of these ostracods are considered doubtful due in part to the confusion arising from their original descriptions by James Hall (1860). The present examination gives more detailed information concerning these previously described species and reveals for the first time the presence of several species previously recorded only from northern Europe.

• Read more about Ostracoda from the Upper Silurian Stonehouse Formation, Arisaig, Nova Scotia, Canada

Assemblages of non-marine lamellibranchs are described from twelve horizons in the Ammanian and four in the Morganian strata of the Pembrokeshire coalfield. In the case of the Ammanian assemblages it is usually possible to indicate the approximate correlative fauna in one or more of the major British coalfields.

• Read more about Non-marine lamellibranch assemblages from the Coal Measures (Upper Carboniferous) of Pembrokeshire, West Wales

The circumscription of the organ-genus Quercinium Unger is discussed in relation to the wood structure of the Recent oaks and emended so as to include fossil wood conforming to the wood of the living species of Quercus L. and Lithocarpus Blume, since the wood of these genera is anatomically indistinguishable. Quercinium quercoides (Goepp.) Edwards is designated type species, and the name Quercinium Unger recommended as a nomen conservandum against the earlier valid name Kloedenia Goeppert.

• Read more about Fossil oak wood from the British Eocene