The smallest stag beetles (Coleoptera, Lucanidae): hidden paleodiversity in mid-Cretaceous Kachin amber from northern Myanmar
نویسندگان
چکیده
The fossil record of stag beetles (Lucanidae), especially in Mesozoic amber, is sparse. Four additional lucanids preserved mid-Cretaceous Kachin amber from northern Myanmar are here reported. All these species included the primitive subfamily Aesalinae, and have been identified as: Protonicagus mandibularis sp. nov. (tribe Nicagini); Cretognathus minutissimus gen. et Ceratognathini); Ceratognathini indet. 1 (provisional assignment); 2 assignment). Except for , appear to be connected continent Gondwana, as with paleofauna. More interestingly, significantly smaller bodies than extant species, three them measuring less 3 mm, which makes smallest known Lucanidae. This finding congruent a trend toward miniaturization several unrelated lineages beetles, it shows hidden paleodiversity during Cretaceous.
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ژورنال
عنوان ژورنال: Evolutionary Systematics
سال: 2023
ISSN: ['2535-0730']
DOI: https://doi.org/10.3897/evolsyst.7.104597