ArticlePeerJ2020
Exploring abnormal Cambrian-aged trilobites in the Smithsonian collection.
Article in PeerJ, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed.
- Five new malformed trilobites from Cambrian and Ordovician deposits from the Natural History Museum.PeerJ · 2023Article
- Article
- A new bilaterally injured trilobite presents insight into attack patterns of Cambrian predators.PeerJ · 2022Article
- Article
- Teratological trilobites from the Silurian (Wenlock and Ludlow) of Australia.Die Naturwissenschaften · 2021Article
- Biomechanical analyses of Cambrian euarthropod limbs reveal their effectiveness in mastication and durophagy.Proceedings. Biological sciences · 2021Article
- Injuries and molting interference in a trilobite from the Cambrian (Furongian) of South China.PeerJ · 2021Article
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Biomineralised trilobite exoskeletons provide a 250 million year record of abnormalities in one of the most diverse arthropod groups in history. One type of abnormality-repaired injuries-have allowed palaeobiologists to document records of Paleozoic predation, accidental damage, and complications in moulting experienced by the group. Although Cambrian trilobite injuries are fairly well documented, the illustration of new injured specimens will produce a more complete understanding of Cambrian prey items. To align with this perspective, nine new abnormal specimens displaying healed injuries from the Smithsonian National Museum of Natural History collection are documented. The injury pattern conforms to the suggestion of lateralised prey defence or predator preference, but it is highlighted that the root cause for such patterns is obscured by the lumping of data across different palaeoecological and environmental conditions. Further studies of Cambrian trilobites with injuries represent a key direction for uncovering evidence for the Cambrian escalation event.
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