2020
DOI: 10.11606/1807-0205/2020.60.63
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Abstract: Recent findings of ommatids from mid-Cretaceous Burmese amber have greatly increased our knowledge on the Mesozoic diversity of Ommatidae. Here, we report the first distinctly miniaturized ommatid species, Miniomma chenkuni gen. et sp. nov., entombed in mid-Cretaceous amber from northern Myanmar. This new fossil species is characterized by its small body size (less than 2 mm long) and subglobular metacoxae. Our discovery of miniaturization in extinct Ommatidae suggests a high ecological diversity of this famil… Show more

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Cited by 12 publications
(9 citation statements)
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“…However, the body length of this new species is only 1.40 mm (Figure 1A-C), representing the smallest species of the entire Tingidae. The observed smaller body size of lace bugs in Burmese amber, when compared to extant taxa, is an isolated case, whereas a similar phenomenon has been found in several species of Coleoptera and Hymenoptera as well [16][17][18][28][29][30]. The previous study [16] mentioned the miniaturization trend of insects in the mid-Cretaceous based on the discovery of the smallest paederine rove beetles together with the previous finding from the Kachin amber.…”
Section: Discussionsupporting
confidence: 59%
See 1 more Smart Citation
“…However, the body length of this new species is only 1.40 mm (Figure 1A-C), representing the smallest species of the entire Tingidae. The observed smaller body size of lace bugs in Burmese amber, when compared to extant taxa, is an isolated case, whereas a similar phenomenon has been found in several species of Coleoptera and Hymenoptera as well [16][17][18][28][29][30]. The previous study [16] mentioned the miniaturization trend of insects in the mid-Cretaceous based on the discovery of the smallest paederine rove beetles together with the previous finding from the Kachin amber.…”
Section: Discussionsupporting
confidence: 59%
“…Furthermore, the other study [18] tried to explain this miniaturization phenomenon as a result of random variation or paleo-environmental factors such as the warmer climate and lower oxygen concentration. Although the reason for the miniaturization phenomenon of insects in the mid-Cretaceous is still unclear due to the paucity of information, our discovery of the miniatured new species, and the previous studies [13,14] indicates the possibility of this phenomenon in Tingidae, as already documented in beetles and wasps [16][17][18][28][29][30]. However, further studies and statistical assessments are needed to reveal the commonness of the miniaturization of lace bugs in the mid-Cretaceous.…”
Section: Discussionmentioning
confidence: 79%
“…However, for many other amber specimens, there is strong background fluorescence emitted from the amber matrix, which can be even stronger than the fluorescent signal of the fossil surface (e.g., Fig. 9A; Li et al, 2020b. In such cases, a maximum intensity projection would be incapable of generating any informative stacking results (Fig.…”
Section: Confocal Microscopy and Imagingmentioning
confidence: 99%
“…Based on our preliminary examination, the morphological cladistic analysis of Ommatidae by Tan et al (2012) seems to contain many coding errors, which was probably at least partly caused by the comparatively strong taphonomic artefacts in compression-impression fossils. The recent findings of relatively well-preserved ommatids in mid-Cretaceous Burmese amber have greatly increased our knowledge on the morpho-logical disparity of this family (e.g., Liu et al, 2017;Jarzembowski et al, 2019;Li et al, 2020aLi et al, , 2021aTihelka et al, 2020). The morphological characters of the amber inclusions are less affected by taphonomic artefacts and could be crucial for further phylogenetic studies of Ommatidae.…”
Section: Introductionmentioning
confidence: 98%