Palaeoentomology <p><strong>Palaeoentomology </strong>is the official journal of the <a href="">International Palaeoentomological Society</a>. It is an international peer-reviewed scientific journal, which publishes high quality, original research contributions as well as review papers. Papers are published in English and they cover a wide spectrum of topics in palaeoentomology, fossil terrestrial arthropods and amber research, i.e. systematic palaeontology, morphology, diversity, palaeogeography, palaeoecology, palaeobehavior, evolutionary and phylogenetic studies on fossil insects and terrestrial arthropods, biostratigraphy, taphonomy, and amber (deposits, inclusions, geochemistry, curation). Descriptions of new methods (analytical, instrumental or numerical) should be relevant to the broad scope of the journal.</p> Magnolia press en-US Palaeoentomology 2624-2826 <span lang="EN-GB">Authors need to complete and return an </span><span lang="EN-GB"><a href="/phytotaxa/images/copyright.rtf">Assignment of Copyright</a> </span><span lang="EN-GB">form when a paper is accepted for publication. Authors from institutions that do not allow transfer of copyrights to publishers (e.g. government institutions such as USDA, CSIRO) should attach a copyright waiver or similar document.</span> <p><strong>Discovery of coprolites in an Early Permian fern mesophyll</strong></p> <p>Plants and arthropods interact with each other and constitute an important part of the modern terrestrial ecosystem (Schoonhoven <em>et al</em>., 2005). Historically, fossil records of plant-arthropod interactions have been well documented in Paleozoic terrestrial ecosystems, which were evidenced by large coprolites containing various plant fragments (<em>e</em>.<em>g</em>., Salter <em>et al</em>., 2012), small larvae and coprolites remained in plant organs (<em>e</em>.<em>g</em>., Feng <em>et al</em>., 2017), and diverse functional feeding groups discovered on plant stems, rachises, roots, leaves and fertile organs (<em>e.g</em>., Liu <em>et al</em>., 2020).</p> WEI-MING ZHOU MING-LI WAN JOSEF PŠENIČKA JUN WANG Copyright (c) 2021 Magnolia press limited 2022-01-05 2022-01-05 5 1 001–005 001–005 10.11646/palaeoentomology.5.1.1 <p><strong>Termite coprolites (Blattodea: Isoptera) from the Early Cretaceous of eastern Inner Mongolia, Northeast China</strong></p> <p>Well-preserved coprolites (fossil faecal pellets) were found from lignite seams of the Lower Cretaceous Huolinhe Formation at the Huolinhe Basin in eastern Inner Mongolia, Northeast China. These coprolites provide a combination of following features: oval to cylindrical shaped with six longitudinal ridges, hexagonal to elliptical cross-sections, and one blunt end and the other pointed end. According to these distinct features and their size range, the producers of these coprolites are attributed to termites. Termites were estimated to have originated in the earliest Cretaceous with an evolutionary radiation in the Early Cretaceous. The presence of wood debris in the coprolites indicate that the Early Cretaceous termites from the Huolinhe Basin had wood-feeding habits; and anatomical features displaying on the wood debris further suggest their feeding preference was coniferous wood. Besides, the results of a <em>k</em>-means clustering analysis performed for these coprolites indicate that three clusters with different proportion were present, suggesting the division of labor in termites’ sociality existed as early as the Early Cretaceous.</p> CHONG DONG GONG-LE SHI ZI-XI WANG DI-YING HUANG Copyright (c) 2021 Magnolia press limited 2022-01-05 2022-01-05 5 1 006–019 006–019 10.11646/palaeoentomology.5.1.2