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Phosphorite-filled crustacean burrows associated with a Campanian-age omission surface in the north-western Negev are described. The phosphatic burrow casts weather out displaying scratches (bioglyphs) and two types of local swellings (chambers), which are flattened normal to the course of the burrow. The more abundant chamber type is a flattened spheroid (diameter 45-50 mm) or a flattened, highly prolate ellipsoid of larger dimensions, with bioglyphs. The other type is a flattened spheroid (diameter 45 mm), gently rounded on the upper side and flat on the base.

• Read more about Campanian crustacean burrow system from Israel with brood and nursery chambers representing communal organization

The Carboniferous genus Strepsodus contains several described species, but has been mired in taxonomic confusion for nearly 150 years. The little-known genus Archichthys (with two described species) is usually treated as a junior synonym of Strepsodus. These problems have been caused by, among other things, the poor quality of most specimens, and a heavy reliance on tooth and scale morphology when erecting new species. Both genera are known from Upper and Lower Carboniferous river and lake deposits in the UK, particularly coal shales, cementstones and freshwater limestones.

• Read more about The Carboniferous fish genera Strepsodus and Archichthys (Sarcopterygii: Rhizodontida): clarifying 150 years of confusion

The taxonomy and biostratigraphy of the Aeronian graptoloid graptolites of the Tanezzuft Formation (Murzuq Basin and Al Qarqaf Arch area) is presented and discussed with respect to their palaeoenvironmental setting and palaeobiogeographical links. The gregarius-libycus, 'leptotheca', convolutus and sedgwickii assemblage biozones and tenuis Subzone are recognized and correlated with the generalized zonal scheme and with graptoloid successions in peri-Gondwanan Europe. The Rhuddanian/Aeronian boundary is tentatively placed at the base of the gregarius-libycus Biozone.

• Read more about Middle Llandovery (Aeronian) graptolites of the western Murzuq Basin and Al Qarqaf Arch region, south-west Libya

The eurypterid Rhenopterus sievertsi Stormer from the Lower Devonian of Germany is redescribed. Based on new morphological data, including the possession of prosomal limbs of Adelophthalmus-type and spatulae on the genital operculum, the species is transferred to Adelophthalmus Jordan, in Jordan and von Meyer and thus is the oldest representative of this geographically and stratigraphically widespread genus. Eurypterus? trapezoides Stormer is recognized as a junior synonym of A. sievertsi.

• Read more about The eurypterid Adelophthalmus sievertsi (Chelicerata: Eurypterida) from the Lower Devonian (Emsian) Klerf Formation of Willwerath, Germany

Material from a new titanosaur from the Bauru Basin (Bauru Group), Brazil is described and compared with well-known titanosaurs. Adamantisaurus mezzalirai gen. et sp. nov. is based on six articulated anterior caudal vertebrae and two haemapophyses collected from the Adamantina Formation, which is considered to be Campanian-Maastrichtian? in age.

• Read more about A new titanosaur from western São Paulo State, Upper Cretaceous Bauru Group, south-east Brazil

Two genera of tube-bearing antillocaprinid rudist bivalves from the Maastrichtian of Jamaica are recognised: Titanosarcolites Trechmann and Parasarcolites gen. nov. Titanosarcolites is recumbent, broadly equivalve and coils parallel to the myocardinal line, with tubes on the anteriodorsal, anterior, and anterioventral regions of the inner layer; there are two teeth and two teeth-like myophores in the left valve. Sockets for teeth have conical tabulae, those for myophores are filled with normal shell structure. A ligamental cavity is lacking.

• Read more about New tube-bearing antillocaprinid rudist bivalves from the Maastrichtian of Jamaica

New trilobite material is described from the Fox Bay Formation (Lower Devonian; Pragian) of the Falkland Islands (South Atlantic). The fossils were collected from many localities in both East and West Falkland and represent the first significant collection of trilobites from East Falkland. The trilobites belong to three higher taxa: Proetida (the first proetid record in these islands); Homalonotidae, Burmeisteria Salter, 1865; and Calmoniidae, including Bainella Rennie, 1930 and Metacryphaeus Reed, 1907. All of the forms except proetids have now been found in both East and West Falkland.

• Read more about Devonian trilobites from the Falkland Islands

Ontogenies are described for the first time for three species of Early Cambrian oryctocephalid trilobites: the oryctocephaline Changaspis elongata Lee, in Chien and the oryctocarines Duyunaspis duyunensis Chang and Chien, in Zhou et al. and Balangia balangensis Chien from the Balang Formation in eastern Ghuizhou Province, south-west China. The complete protaspid to holaspid ontogeny for Duyunaspis duyunensis and incomplete meraspid to holaspid ontogenies for Changaspis elongata and Balangia balangensis are described.

• Read more about Ontogeny and heterochrony in the Early Cambrian oryctocephalid trilobites Changaspis, Duyunaspis and Balangia from China

A new species of palaeoleontid neuropteran Baisopardus cryptohymen sp. nov. is described. The holotype is remarkable for the preservation of fine body structures and colour patterning on all of its four wings. The specimen is nearly complete, lacking only the abdomen and the right mesothoracic leg, and is preserved as a black-brown compression in laminated limestone of the Nova Olinda Member, Crato Formation (late Aptian, Early Cretaceous), Ceara, Brazil.

• Read more about An exceptionally preserved antlion (Insecta, Neuroptera) with colour pattern preservation from the Cretaceous of Brazil

The cone genus Discinites is revised based on 31 specimens belonging to seven species collected from the Kladno-Rakovnik, Radnice and Lisek continental basins of central and western Bohemia, Czech Republic. The stratigraphical distribution of the cones studied ranges from Bolsovian to Westphalian D. Emendations of Discinites and the species D. hlizae and D. bohemicus are proposed. A new species, D. nemejcii, is erected. Wherever possible descriptions of in situ microspores and megaspores are included in the diagnoses. Isolated microspores represent two ontogenetic stages.

• Read more about Revision of the cone genus Discinites from the Carboniferous continental basins of Bohemia