Coccinelloid beetles have a sparse fossil record in the Mesozoic. Here, we describe and illustrate an unusual coccinelloid beetle, gen. et sp. nov., from mid-Cretaceous Kachin amber. stands out within the Coccinelloidea due to its notched profemora and the presence of antennal grooves on the elytral epipleura. Based on our phylogenetic analyses, we suggest that is most likely related to the family Anamorphidae. The alternative placements are critically evaluated based on our comparison of the morphology.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11412222 | PMC |
http://dx.doi.org/10.7717/peerj.18008 | DOI Listing |
J Anat
December 2024
Museum of Paleontology and Department of Earth & Environmental Sciences, University of Michigan, Ann Arbor, Michigan, USA.
Unlike most herbivores, sauropod dinosaurs evolved simple teeth that were replaced rapidly. Sauropod craniodental morphology is conserved relative to that of many archosaur clades, but tooth breadth and replacement rate vary substantially. Two neosauropod clades, Titanosauria and Diplodocoidea, independently evolved both narrow-crowned teeth and high tooth replacement rates among a suite of other convergent features.
View Article and Find Full Text PDFEcol Evol
December 2024
State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences Nanjing China.
R Soc Open Sci
October 2024
Department of Earth Sciences, University College London, Gower Street, London WC1E 6BT, UK.
The Barremian-aged Wessex Formation of the Isle of Wight, UK, offers a globally significant glimpse into the sauropod dinosaur faunas of the early Cretaceous. These deposits have yielded specimens of several neosauropod lineages, such as rebbachisaurids, titanosauriforms (including some of the earliest titanosaur remains), and possible flagellicaudatans. Here, we report an undescribed sauropod partial hindlimb from the Wessex Formation (NHMUK PV R16500) and analyse its phylogenetic affinities.
View Article and Find Full Text PDFPeerJ
September 2024
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China.
Coccinelloid beetles have a sparse fossil record in the Mesozoic. Here, we describe and illustrate an unusual coccinelloid beetle, gen. et sp.
View Article and Find Full Text PDFPlant Divers
September 2024
Key Laboratory Western China's Mineral Resources of Gansu Province, Lanzhou University, Lanzhou 730000, China.
•A new species gen. et sp. nov.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!