ArticleBMC biology2016
Cambrian suspension-feeding tubicolous hemichordates.
Article in BMC biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed.
- Reply to: The Cabrières Biota is not a Konservat-Lagerstätte.Nature ecology & evolution · 2024Article
- The Cabrières Biota is not a Konservat-Lagerstätte.Nature ecology & evolution · 2024Article
- The Cabrières Biota (France) provides insights into Ordovician polar ecosystems.Nature ecology & evolution · 2024Article
- Post-Cambrian survival of the tubicolous scalidophoranBiology letters · 2024Article
- Annelids from the Cambrian (Wuliuan Stage, Miaolingian) Spence Shale Lagerstätte of northern Utah, USA.Historical biology · 2024Article
- A mid-Cambrian tunicate and the deep origin of the ascidiacean body plan.Nature communications · 2023Article
- Heterochrony and parallel evolution of echinoderm, hemichordate and cephalochordate internal bars.Proceedings. Biological sciences · 2022Article
- Article
- Symbiosis in the Cambrian: enteropneust tubes from the Burgess Shale co-inhabited by commensal polychaetes.Proceedings. Biological sciences · 2021Article
- Filter feeding, deviations from bilateral symmetry, developmental noise, and heterochrony of hemichordate and cephalochordate gills.Ecology and evolution · 2020Article
- A stem group echinoderm from the basal Cambrian of China and the origins of Ambulacraria.Nature communications · 2019Article
- Three Cambrian fossils assembled into an extinct body plan of cnidarian affinity.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- The impact of deep-tier burrow systems in sediment mixing and ecosystem engineering in early Cambrian carbonate settings.Scientific reports · 2017Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe combination of a meager fossil record of vermiform enteropneusts and their disparity with the tubicolous pterobranchs renders early hemichordate evolution conjectural. The middle Cambrian Oesia disjuncta from the Burgess Shale has been compared to annelids, tunicates and chaetognaths, but on the basis of abundant new material is now identified as a primitive hemichordate.
resultsNotable features include a facultative tubicolous habit, a posterior grasping structure and an extensive pharynx. These characters, along with the spirally arranged openings in the associated organic tube (previously assigned to the green alga Margaretia), confirm Oesia as a tiered suspension feeder.
conclusionsIncreasing predation pressure was probably one of the main causes of a transition to the infauna. In crown group enteropneusts this was accompanied by a loss of the tube and reduction in gill bars, with a corresponding shift to deposit feeding. The posterior grasping structure may represent an ancestral precursor to the pterobranch stolon, so facilitating their colonial lifestyle. The focus on suspension feeding as a primary mode of life amongst the basal hemichordates adds further evidence to the hypothesis that suspension feeding is the ancestral state for the major clade Deuterostomia.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.