Ademosynidae is an extinct family of beetles, known from the Late Triassic to Early Cretaceous. There are at least six genera and 11 species in Ademosynidae.[1][2][3][4] Members of the family were small oval beetles, with a length generally smaller than 1 cm. Characteristics of the family include a pronotum without anterior angles and a rounded anterior margin, and elytra with 9–12 punctate striae. The systematic position of the family within the order Coleoptera is currently uncertain: they can be considered early examples of the suborder Polyphaga, or unusual examples of Archostemata.[3]
The family Ademosynidae is restricted to the following six genera and 11 species in Yan, Beutel and Ponomarenko (2017):[3]
The following genera and species are also included in the family according to Fossilworks, but are excluded or not mentioned in Yan, Beutel and Ponomarenko (2017):[2]
Ademosynidae is an extinct family of beetles, known from the Late Triassic to Early Cretaceous. There are at least six genera and 11 species in Ademosynidae. Members of the family were small oval beetles, with a length generally smaller than 1 cm. Characteristics of the family include a pronotum without anterior angles and a rounded anterior margin, and elytra with 9–12 punctate striae. The systematic position of the family within the order Coleoptera is currently uncertain: they can be considered early examples of the suborder Polyphaga, or unusual examples of Archostemata.
Ademosynidae er en gruppe utdødde, primitive biller.
Middelsstore, avlange biller. Av utseende kan de minne om den moderne familien praktbiller (Buprestidae). Dekkvingene hadde tydelige punktstriper. Antennene var korte og trådformede.
Gruppen er kjent fra fossiler over en lang periode fra sen Perm (265 millioner år før nåtid) til Kritt, 112 millioner år før nåtid.