Cicada nymph trace fossils from South American Maastrichtian paleosols

IF 1.9 3区 地球科学 Q1 GEOLOGY Cretaceous Research Pub Date : 2024-10-17 DOI:10.1016/j.cretres.2024.106029
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Abstract

The Cretaceous was a pivotal Period in the evolution of major insect groups, including cicadas. Insect diversification led to an increased complexity in the paleosol ichnofabrics due to the emergence of chambers associated with reproductive and feeding behaviors. Therefore, any new record of trace fossils attributed to cicadas from the Cretaceous period represent a significant advancement in understanding the diversification of this group and the emergence of insect feeding chambers, throughout the geological record. This work describes the record of the ichnogenus Feoichnus attributed to feeding chambers of cicada nymphs (Hemiptera: Cicadidae) from Maastrichtian paleosols developed in floodplain deposits of The Marília Formation (Bauru Basin, Brazil). The described Feoichnus chambers are elongated, hemispherical, and upwardly concave, with a lining covering the inner surface of the wall. The inner surface exhibits thin, irregular ridges and grooves, likely associated with fine roots. Feoichnus occurs in association with Beaconites antarcticus and root traces found within the feeding chamber, it could be indicating the movement of the trace maker and the feeding chamber from one root to another. These characteristics indicate the xylem-feeding behavior of Feoichnus trace maker in accordance with extant cicada nymph ecology. The presence of Beaconites antarcticus associated with Feoichnus and rhizoliths probably represents the foraging behavior of cicada nymphs and the displacement of feeding chambers in well-drained, rooted soils. Therefore, the cicada nymph could be the trace maker of both traces representing feeding and locomotion behavior. This contribution expands the knowledge about plant–insect interactions and insect groups that compose the Cretaceous paleosols ichnofabrics from South America.
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南美洲马斯特里赫特古溶岩中的蝉蛹痕量化石
白垩纪是包括蝉在内的主要昆虫类群进化的关键时期。由于出现了与繁殖和进食行为相关的腔室,昆虫的多样化导致了古沉积层昆虫化石的复杂性增加。因此,白垩纪时期蝉的痕迹化石的任何新记录,都代表着在整个地质记录中,在了解蝉类的多样化和昆虫食室的出现方面取得了重大进展。这项研究描述了蝉若虫(半翅目:蝉科)哺育室的昆虫Feoichnus的记录,这些哺育室来自马里利亚地层(巴西包鲁盆地)洪积平原沉积物中发育的马斯特里赫特古溶胶。所描述的 Feoichnus 腔室呈拉长的半球形,向上凹陷,内壁表面覆盖着一层衬里。内表面呈现出不规则的细脊和凹槽,很可能与细根有关。Feoichnus 与北极喙藻和饲养室内发现的根部痕迹一起出现,这可能表明痕迹制造者和饲养室从一个根部转移到另一个根部。这些特征表明迹器蝉的木质部取食行为与现存蝉若虫生态学相符。Beaconites antarcticus 与 Feoichnus 和根瘤的存在可能代表了蝉若虫的觅食行为以及在排水良好的根系土壤中觅食室的迁移。因此,蝉若虫可能是代表取食和运动行为的两种痕迹的制造者。这一贡献扩展了有关植物与昆虫之间的相互作用以及构成南美洲白垩纪古溶岩昆虫织物的昆虫群的知识。
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来源期刊
Cretaceous Research
Cretaceous Research 地学-地质学
CiteScore
4.10
自引率
19.00%
发文量
235
审稿时长
12 weeks
期刊介绍: Cretaceous Research provides a forum for the rapid publication of research on all aspects of the Cretaceous Period, including its boundaries with the Jurassic and Palaeogene. Authoritative papers reporting detailed investigations of Cretaceous stratigraphy and palaeontology, studies of regional geology, and reviews of recently published books are complemented by short communications of significant new findings. Papers submitted to Cretaceous Research should place the research in a broad context, with emphasis placed towards our better understanding of the Cretaceous, that are therefore of interest to the diverse, international readership of the journal. Full length papers that focus solely on a local theme or area will not be accepted for publication; authors of short communications are encouraged to discuss how their findings are of relevance to the Cretaceous on a broad scale. Research Areas include: • Regional geology • Stratigraphy and palaeontology • Palaeobiology • Palaeobiogeography • Palaeoceanography • Palaeoclimatology • Evolutionary Palaeoecology • Geochronology • Global events.
期刊最新文献
Eolian-fluvial succession in the Early Cretaceous from the Ordos Basin New dance flies from Burmese amber providing the new insight to early evolution of feeding habits in Atelestidae (Diptera: Empidoidea) Classostrobus doylei, a new cheirolepidiaceous cone with in situ pollen from the Figueira da Foz Formation (lower Aptian – upper Albian), western Portugal Cicada nymph trace fossils from South American Maastrichtian paleosols A new crossognathiform fish (Teleostei: †Crossognathiformes) from San José de Gracia quarry reveals a great diversity in the Cretaceous outcrops of Mexico
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