The evolutionary history of Coleoptera (Insecta) in the late Palaeozoic and the Mesozoic

Systematic Entomology, Journal Year: 2024, Volume and Issue: 49(3), P. 355 - 388

Published: Feb. 13, 2024

Abstract Recent progress in beetle palaeontology has incited us to re‐address the evolutionary history of group. The Permian †Tshekardocoleidae had elytra that covered posterior body a loose tent‐like manner. formation elytral epipleura and tight fit abdomen were important transformations Middle Permian, resulting tightly enclosed subelytral space. families likely associated with dead wood gymnospermous trees. end‐Permian extinction event resulted turnover composition faunas, especially decline large‐bodied wood‐associated forms. Adephaga Myxophaga underwent first wave diversification Triassic. Polyphaga are very rare this period. suborder occurs Jurassic, fossils Elateriformia, Staphyliniformia Cucujiformia. Cretaceous fossil record been tremendously enriched by discovery amber inclusions. Numerous represent all major polyphagan lineages also remaining suborders. Improved analytical methods for documenting placing extinct taxa discussed. Different factors have played role beetles. enormous number species flowering plants, timing patterns phytophagous indicate angiosperm radiation macroevolution. Moreover, evolution intimate partnerships symbionts acquisition novel genes—obtained from fungi bacteria via horizontal gene transfers—facilitated use plant material as food source key innovations plant‐feeding

Language: Английский

The first detailed morphological treatment of a Cretaceous psocid and the character evolution of Trogiomorpha (Insecta: Psocodea)

Arthropod Structure & Development, Journal Year: 2025, Volume and Issue: 85, P. 101409 - 101409

Published: Feb. 19, 2025

While new fossil psocid taxa are described every year, the morphology is generally not studied and documented in sufficient detail, limiting our understanding of character evolution this order. A species genus Psyllipsocus from mid-Cretaceous Kachin amber its reconstructed detail using synchrotron-radiation micro-computed tomography (SR-μ-CT). We present first cybertype a Cretaceous psocid. also describe discuss putative previously unrecognized underestimated exoskeletal characters for suborder Trogiomorpha. Additionally, observations, we critically evaluate phylogeny Trogiomorpha group. modified matrix which analyze Bayesian inference parsimony. Based on results previous studies propose monophyletic s.l. (incl. †Brachyantennum) s. str. (possibly incl. †Cormopsocidae), latter comprising Prionoglarididae Spinaprocta. Spinaprocta contain Atropetae Psyllipsocetae Psyllipsocus) as sister taxa. Some relationships level still strongly disputed unclear. Here, synonymize extinct monotypic †Khatangia with systematic position †Sinopsyllipsocus, †Parapsyllipsocus, †Empheriopsis †Concavapsocus. key all Psyllipsocidae provided.

Language: Английский

Overview of Psocodea in Eocene Oise amber and implications for the transition to modern‐day barklice communities

Papers in Palaeontology, Journal Year: 2024, Volume and Issue: 10(6)

Published: Nov. 1, 2024

Abstract Psocodea is an insect order including barklice, booklice and parasitic lice. The oldest evidence of diversification in the crown group dates back to Cretaceous, represented by a high diversity abundance several amber deposits. However, Cenozoic record psocodeans less known. Here, we present review from lower Eocene Oise France, study 83 new specimens. psocids currently 144 specimens corresponding 14 species genera 10 families three suborders: Trogiomorpha, Troctomorpha Psocomorpha. only known ‘archaeatropid’ Empheriidae Eocene, Danyazarius magnificus gen. et sp. nov., described. In addition, Annulipsyllipsocus Sinopsyllipsocus are formally synonymized under Psyllipsocus . Wing venations all psocid illustrated, enabling easier comparison with other taxa. A key for determination psocodean given. We notice rarity nymphs relation total number specimens, provide account sexes, female being more numerous than male. also compare that Baltic amber. Interestingly, Psocomorpha least diverse suborder amber, as Cretaceous although this most numerous, current ecosystems. This opens window onto evolutionary history during transition modern‐day barklice communities.

Language: Английский