Amberclipsis gen. nov. is an extinct genus discovered in mid-Cretaceous Burmese amber. Three new species (A. elegans sp. nov., A. oblongus sp. nov., and A. simplex sp. nov.) are placed in the family Pseudoneureclipsidae, characterized by the absence of fork I and the presence of fork III in hind wings and by the two-segmented inferior appendages in the form of ventral coxopodites and basodorsal harpagos in male genitalia. Protoclipsis gen. nov. is another extinct genus with three new species (P. ulmeri sp. nov., P. picteti sp. nov., and P. roeseli sp. nov.), also found in mid-Cretaceous Burmese amber. The genus is characterized by the presence of forks I, III in hind wings and by the two-segmented inferior appendages with ventral coxopodites and basodorsal harpagos in male genitalia. The affiliation of Protoclipsis in the family Pseudoneureclipsidae is not true; unless fork I of hind wings was lost within the family except for the ancestral lineage Protoclipsis.

The Bajocian ammonite faunas of the ‘Oberer Blaukalk’ Member (Wedelsandstein Formation) and of the lower part of the ‘Humphriesioolith’ Member (Gosheim Formation) in the vicinity of Gosheim (SW Swabian Alb) are studied. At least three biohorizons of the Sauzei Zone can be distinguished: dilatus, pseudocontrahens, macrum and ?carinodiscus biohorizon, probably followed by the deltafalcata biohorizon of the basal Humphriesianum Zone (Pinguis Subzone). This succession is correlated with other sites in SW Germany and abroad.

Caterpillars are an omnipresent component in modern terrestrial faunas. Not surprisingly, they represent an important food source for larger animals. The oldest fossils of caterpillars are known from the Cretaceous. Yet, so far, only nine possible Cretaceous specimens have been reported. Here we expand the known record by four new specimens of caterpillars preserved in 99 million-year-old Kachin amber from Myanmar. The specimens cannot easily be interpreted in a taxonomic or phylogenetic frame. A simple morphometric comparison reveals that the new specimens differ in their relative body dimensions from those of the previously known specimens, expanding the morphological diversity of Cretaceous caterpillars. All caterpillars from the Cretaceous of which sizes are known are rather small, the largest definite one being only about 5 mm. Comparison to younger ambers reveals no clear directed preservation bias towards preserving only small caterpillars. In addition, the sizes of known adult lepidopterans from the Cretaceous are compatible with rather small caterpillars, although possibly slightly larger than the known ones. While small, the observed size range appears still to be within the size range of food items known to be consumed by modern birds. It therefore seems likely that also in the Cretaceous caterpillars were adequate food items for early birds.

The ichnospecies Trisulcus laqueatus is an epichnial trail that is constructed of three grooves separated by two ridges. It exhibits significant amounts of extramorphological variation because the maker was moving through wet sediment. Thus, most details of the maker are obscured. Nonetheless, there is evidence of it having been made by arthropods, including the sharply-angled turns in one example, the division of the lateral grooves into separate imprints in some locations along the length of the trail, and comparison to modern trails produced by Cydnidae (burrower bugs).

Palaeotanyrhina exophthalma gen. et sp. nov. is described in a new family, Palaeotanyrhinidae fam. nov., (Reduvoidea: Hemiptera) in mid-Cretaceous Burmese amber. Diagnostic characters of Palaeotanyrhina exophthalma gen. et sp. nov. include large stalked eyes, an extended head, a 4-segmented labium that reaches the tip of the abdomen and an extremely short, vertical first segment, ocelli on a synthlipsic tubercle between the eyes, forewing membrane lacking veins, a 3-3-3 tarsal formula and fossula spongiosa on the fore tarsi.

A new genus and species of planthopper, Stonymetopus megus gen. et sp. nov. (Hemiptera: Fulgoromorpha: Fulgoridiidae) is described as the first Fulgoridiidae from mid-Cretaceous Burmese amber, a family previously only known from the Jurassic. The new genus has a relatively large size with pointed head and obelliptic eyes (in lateral view). Its short metatibia are not apically dilated, and first metatarsomere exhibits five to six short teeth bearing sarcosetae between two longer lateral ones, while the second metatarsomere seems toothless but with a blunt ventroapical extension. Tegmina are coleopterous-like with long subparallel main veins. A mature, post-parasitic dryinid larva (Hymenoptera: Dryinidae) is adjacent to the fossil planthopper and the ethology of these parasites is briefly discussed.

The biostratigraphical position of the Aalener Flöz (= Oberes Flöz) within the Eisensandstein Formation of Aalen-Wasseralfingen (E Swabian Alb) is discussed and revised. It lies in the herein newly introduced falcifera biohorizon of the Gigantea Subzone (Upper Aalenian, Bradfordensis Zone) and not in the Bradfordensis Subzone as stated in literature. With the exception of the Concavum Zone, all other zones and subzones of the Upper Aalenian can be identified in the Eisensandstein Formation at Aalen-Wasseralfingen.

New specimens of the rare ammonite genus Diplesioceras Buckman, 1920 from the Upper Bajocian of Normandy and from the Iberian Ranges of Spain provide additional information on the shell morphology and ontogeny of this previously monotypic genus. A new species of Diplesioceras, D. fischeri, is recorded by a single specimen probably originating from the Parkinsoni Zone. The new material clearly demonstrates the presence of a vertically undulating floored keel, a character previously only known from some Strigoceratidae Buckman, 1924. This observation let us to discuss whether Diplesioceras should be assigned to Strigoceratidae Buckman, 1924. Further characters such as ribbing style and conch ontogeny, intraspecific variation, biostratigraphic occurrence and palaeogeographic distribution were analyzed. Despite of a long stratigraphical gap to supposedly ancestral taxa, a systematic placement of Diplesioceras in Hammatoceratidae Buckman, 1887 appears to be more convenient; however, we cannot exclude an origination in Strigoceratidae either.