New species of Paraodontomma from mid-Cretaceous Burmese amber with muscle tissue preservation (Coleoptera: Archostemata: Ommatidae)

The third member of the extinct ommatid genus Paraodontomma is reported from mid-Cretaceous Burmese amber. Our observation confirms the transverse ridges on elytra as a diagnostic character for the genus. Paraodontomma leptocristatum sp. nov. differs from previously reported congeners mainly in head...

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Detalles Bibliográficos
Autores: Li, Yan-Da, Yamamoto, Shûhei, Huang, Di-Ying, Cai, Chen-Yang
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:Brasil
Institución:Universidade de São Paulo (USP)
Repositorio:Papéis Avulsos de Zoologia (Online)
Idioma:inglés
OAI Identifier:oai:revistas.usp.br:article/183216
Acceso en línea:https://www.revistas.usp.br/paz/article/view/183216
Access Level:acceso abierto
Palabra clave:Archostemata
Ommatidae
Paraodontomma
Burmese amber
Muscle
Descripción
Sumario:The third member of the extinct ommatid genus Paraodontomma is reported from mid-Cretaceous Burmese amber. Our observation confirms the transverse ridges on elytra as a diagnostic character for the genus. Paraodontomma leptocristatum sp. nov. differs from previously reported congeners mainly in head subquadrate and without prominent protuberances, pronotal disc without prominent ridges, elytral ridges indistinct, and teeth along elytral margins not forming a wavy pattern. Musculature is preserved in the newly discovered specimen of P. leptocristatum, which further demonstrates the preservation potential and irreplaceable value of amber fossils.