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- Title
MESOCERATOCANTHUS FOSSILS FROM THE EARLY CRETACEOUS OF CHINA REINTERPRETED AS THE EARLIEST PASSALOIDS (COLEOPTERA: SCARABAEOIDEA).
- Authors
YAN-DA LI; TIHELKA, ERIK; MARSHALL, CHRISTOPHER J.; MADDISON, DAVID R.; MING BAI; DI-YING HUANG; CHEN-YANG CAI
- Abstract
The scarabaeoid beetle Mesoceratocanthus from the Early Cretaceous Yixian Formation was originally placed in the extant tribe Ivieolini (Hybosoridae). Our re-examination of the holotype and a new specimen demonstrates that Mesoceratocanthus does not possess the diagnostic characters of Ivieolini or Hybosoridae. Instead, it should be assigned to the passaloid lineage (Passalopalpidae + Passalidae) and appears closely related to the extinct family Passalopalpidae. The revised placement of Mesoceratocanthus further extends the earliest occurrence of the passaloid clade (~125 Ma, Barremian to early Aptian).
- Subjects
CHINA; BEETLES; PTEROSAURIA; BRYOPHYTES; TONSTEINS
- Publication
Ameghiniana, 2022, Vol 59, Issue 3, p201
- ISSN
0002-7014
- Publication type
Article
- DOI
10.5710/AMGH.26.04.2022.3502