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Particle Retention and Flow in the Pharynx of the Enteropneust WormHarrimania planktophilus: The Filter-Feeding Pharynx May Have Evolved Before the Chordates
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What this work says
Outgoing claims: the papers this work cites, builds on, or argues with.
inferredcites →https://doi.org/10.1016/0016-6480(63)90036-4openalex-snapshot
Comparative observations on lodine binding by Saccoglossus horsti brambell and goodhart, and by the tunic of Ciona intestinalis (L)
inferredcites →https://doi.org/10.1017/s0025315499001903openalex-snapshot
The size range of suspended particles trapped and ingested by the filter-feeding lancelet Branchiostoma floridae (Cephalochordata: Acrania)
inferredcites →https://doi.org/10.1073/pnas.97.9.4469openalex-snapshot
Evolution of the chordate body plan: New insights from phylogenetic analyses of deuterostome phyla
inferredcites →https://doi.org/10.1080/00288330.1972.9515446openalex-snapshot
Action of the gut in Saccoglossus otagoensis (Hemichordata: Enteropneusta)
inferredcites →https://doi.org/10.1086/415511openalex-snapshot
Ecology of Deposit-Feeding Animals in Marine Sediments
inferredcites →https://doi.org/10.1111/j.1096-3642.1953.tb00192.xopenalex-snapshot
Feeding in Saccoglossus (Enteropneusta).
inferredcites →https://doi.org/10.11606/issn.2526-3382.bffclzoologia.1962.120589openalex-snapshot
The feeding mechanism of Balanoglossus gigas
inferredcites →https://doi.org/10.1242/dev.126.11.2539openalex-snapshot
Developmental expression of Pax1/9 genes in urochordate and hemichordate gills: insight into function and evolution of the pharyngeal epithelium
inferredcites →https://doi.org/10.1242/jcs.s2-82.326.227openalex-snapshot
Observations on Feeding and Digestion in Glossobalanus minutus.
inferredcites →https://doi.org/10.2307/1352661openalex-snapshot
Life in Moving Fluids: The Physical Biology of Flow
inferredcites →https://doi.org/10.2307/1543654openalex-snapshot
The Anatomy, Life Habits, and Later Development of a New Species of Enteropneust, Harrimania planktophilus (Hemichordata: Harrimaniidae) From Barkley Sound
inferredcites →https://doi.org/10.2307/3227061openalex-snapshot
Endostyle-like Features of the Dorsal Epibranchial Ridge of an Enteropneust and the Hypothesis of Dorsal-Ventral Axis Inversion in Chordates
inferredcites →https://doi.org/10.3354/meps001055openalex-snapshot
Efficiency of Particle Retention and Filtration Rate in Four Species of Ascidians
inferredcites →https://doi.org/10.5281/zenodo.13649894openalex-snapshot
Saxipendium coronatum, New Genus, New Species (Hemichordata, Enteropneusta) - The Unusual Spaghetti Worms Of The Galapagos Rift Hydrothermal Vents
inferredcites →https://doi.org/10.5860/choice.32-4494openalex-snapshot
Life in moving fluids: the physical biology of flow
inferredcites →https://doi.org/10.7208/chicago/9780226220635.001.0001openalex-snapshot
Evolution of Vertebrate Design
What points at this work
Incoming claims: where this work appears in other papers’ reference lists and arguments.
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Did internal transport, rather than directed locomotion, favor the evolution of bilateral symmetry in animals?
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Filter feeding, deviations from bilateral symmetry, developmental noise, and heterochrony of hemichordate and cephalochordate gills
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Development and evolution of chordate cartilage
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Morphology of a new deep‐sea acorn worm (class Enteropneusta, phylum Hemichordata): A part‐time demersal drifter with externalized ovaries
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Identifying Vertebrate Brain Prototypes in Deuterostomes
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Finely tuned ciliary alignment and coordinated beating generate continuous water flow across the external gills in Pleurodeles waltl larvae
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Water pumping and analysis of flow in burrowing zoobenthos: an overview
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Phylum Hemichordata
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Cambrian Tentaculate Worms and the Origin of the Hemichordate Body Plan
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Digestive system and feeding of deep-sea acorn worm Quatuoralisia malakhovi (Enteropneusta: Torquaratoridae) from the Bering sea
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A 480-million-year-old parasitic spionid annelid
inferred← citeshttps://doi.org/10.1016/j.tree.2006.01.009openalex-snapshot
Amphioxus and tunicates as evolutionary model systems
inferred← citeshttps://doi.org/10.1017/pab.2015.11openalex-snapshot
Using experimental decay of modern forms to reconstruct the early evolution and morphology of fossil enteropneusts
inferred← citeshttps://doi.org/10.1038/nature02648openalex-snapshot
Ancestral echinoderms from the Chengjiang deposits of China
inferred← citeshttps://doi.org/10.1038/nature14434openalex-snapshot
The deuterostome context of chordate origins
inferred← citeshttps://doi.org/10.1038/s41467-026-77191-yopenalex-snapshot
Distinct cell states define larval and adult body plans in a hemichordate
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Testing putative hemichordate homologues of the chordate dorsal nervous system and endostyle: expression of NK2.1 (TTF‐1) in the acorn worm Ptychodera flava (Hemichordata, Ptychoderidae)
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Animal Evolution
inferred← citeshttps://doi.org/10.1093/acprof:oso/9780199549429.002.0003openalex-snapshot
Copyright Page
inferred← citeshttps://doi.org/10.1093/acprof:oso/9780199549429.002.0007openalex-snapshot
Contributors
inferred← citeshttps://doi.org/10.1093/acprof:oso/9780199549429.002.0008openalex-snapshot
Introduction
inferred← citeshttps://doi.org/10.1093/acprof:oso/9780199549429.003.0001openalex-snapshot
The earliest fossil record of the animals and its significance
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The Ediacaran emergence of bilaterians: congruence between the genetic and the geological fossil records
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Genomic, phylogenetic, and cell biological insights into metazoan origins
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The mouth, the anus, and the blastopore—open questions about questionable openings
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Origins of metazoan body plans: the larval revolution
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Assembling the spiralian tree of life
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The evolution of nervous system centralization
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The origins and evolution of the Ecdysozoa
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Deciphering deuterostome phylogeny: molecular, morphological, and palaeontological perspectives
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Molecular genetic insights into deuterostome evolution from the direct-developing hemichordateSaccoglossus kowalevskii
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Invertebrate Problematica: kinds, causes, and solutions
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Improvement of molecular phylogenetic inference and the phylogeny of Bilateria
inferred← citeshttps://doi.org/10.1093/acprof:oso/9780199549429.003.0013openalex-snapshot
Beyond linear sequence comparisons: the use of genome-level characters for phylogenetic reconstruction
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The animal in the genome: comparative genomics and evolution
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MicroRNAs and metazoan phylogeny: big trees from little genes
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The evolution of developmental gene networks: lessons from comparative studies on holometabolous insects
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Conserved developmental processes and the evolution of novel traits: wounds, embryos, veins, and butterfly eyespots
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Reassembling animal evolution: a four-dimensional puzzle
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The hemichordate pharynx and gill pores impose functional constraints at small and large body sizes
inferred← citeshttps://doi.org/10.1093/zoolinnean/zlad095openalex-snapshot
Glide-reflection symmetry in deuterostomes: an evolutionary perspective
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Suspension feeders: diversity, principles of particle separation and biomimetic potential
inferred← citeshttps://doi.org/10.1098/rspb.2015.1964openalex-snapshot
Cambrian cinctan echinoderms shed light on feeding in the ancestral deuterostome
inferred← citeshttps://doi.org/10.1098/rspb.2022.0258openalex-snapshot
Heterochrony and parallel evolution of echinoderm, hemichordate and cephalochordate internal bars
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Molecular genetic insights into deuterostome evolution from the direct-developing hemichordate Saccoglossus kowalevskii
inferred← citeshttps://doi.org/10.1101/2025.10.31.685866openalex-snapshot
Major cell type differences between larval and adult hemichordate body plans
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Are protochordates chordates?
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The gill slits and pre-oral ciliary organ of Protoglossus (Hemichordata: Enteropneusta) are filter-feeding structures
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The oldest cinctan carpoid (stem-group Echinodermata), and the evolution of the water vascular system
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Chordate phylogeny and evolution: a not so simple three‐taxon problem
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The origins of graptolites and other pterobranchs: a journey from ‘Polyzoa’
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New data on the palaeobiology of the enigmatic yunnanozoans from the C hengjiang B iota, L ower C ambrian, C hina
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Deciphering the early evolution of echinoderms with C ambrian fossils
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Saccoglossus testa from the Mazon Creek fauna (Pennsylvanian of Illinois) and the evolution of acorn worms (Enteropneusta: Hemichordata)
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Fossilization processes of graptolites: insights from the experimental decay of Rhabdopleura sp. (Pterobranchia)
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The Ambulacral System and Body Plan in Extant Adult Echinoderms
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Protostomia and Deuterostomia: Do They Exist?
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Multiple origins of feeding head larvae by the Early Cambrian
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Key characters uniting hemichordates and chordates: homologies or homoplasies?
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A phylogeny of the hemichordates based on morphological characters
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Molecular phylogeny of the protochordates: chordate evolution
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Weighing the Evidence for a Deuterostome Branch of Animals and Implications for Understanding Chordate Origins
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Evolutionary crossroads in developmental biology
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Plated Cambrian Bilaterians Reveal the Earliest Stages of Echinoderm Evolution
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The Global Diversity of Hemichordata
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Biology of the Swimming Acorn WormGlandiceps hacksifrom the Seto Inland Sea of Japan
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EDIACARAN-STYLE DECAY EXPERIMENTS USING MOLLUSKS AND SEA ANEMONES
inferred← citeshttps://doi.org/10.2307/1543654openalex-snapshot
The Anatomy, Life Habits, and Later Development of a New Species of Enteropneust, Harrimania planktophilus (Hemichordata: Harrimaniidae) From Barkley Sound
inferred← citeshttps://doi.org/10.3103/s0096392526600109openalex-snapshot
Ectopharyngeata and Endopharyngeata Instead of Protostomia and Deuterostomia?
inferred← citeshttps://doi.org/10.31857/s2686738924010042openalex-snapshot
Anatomy of digestive system and feeding mechanism of Quatuoralisia malakhovi (Hemichordata, Torquaratoridae)
inferred← citeshttps://doi.org/10.55959/msu0137-0952-16-80-4-4openalex-snapshot
Ectopharyngeata and Endopharyngeata instead of Protostomia and Deuterostomia?
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