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dc.contributor.author
Zaton, Michał
dc.contributor.author
Hu, Mingxi
dc.contributor.author
Di Pasquo Lartigue, Maria
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dc.contributor.author
Myrow, Paul M.
dc.date.available
2023-01-23T15:34:04Z
dc.date.issued
2022-01
dc.identifier.citation
Zaton, Michał; Hu, Mingxi; Di Pasquo Lartigue, Maria; Myrow, Paul M.; Adaptive function and phylogenetic significance of novel skeletal features of a new Devonian microconchid tubeworm (Tentaculita) from Wyoming, USA; Paleontological Society; Journal of Paleontology; 96; 1; 1-2022; 112-126
dc.identifier.issn
0022-3360
dc.identifier.uri
http://hdl.handle.net/11336/185285
dc.description.abstract
A new genus and species of microconchid tubeworm, Aculeiconchus sandbergi n. gen. n. sp., is described from the Givetian (Devonian) Maywood Formation of Cottonwood Canyon, Wyoming, USA. It possesses unique hollow spines of various lengths on the tube underside, a position previously undocumented for these fossils. Like some cyclostome bryozoans possessing basal tubular extensions, the basal spines of Aculeiconchus n. gen. were presumably also used for fixation to flexible substrata, e.g., algal thalli, which is a previously undocumented adaptive strategy in microconchids. Together with other skeletal features, such basal spines could suggest that 'lophophorate' microconchids, unlike the other tentaculitoids, might be phylogenetically not as distant from bryozoans as previously thought. The Maywood Formation, which contains a few-millimeters thick, monospecific shell accumulation of the microconchids described herein, records deposition in an estuarine brackish setting within narrow channels that were cut into underlying strata. The microconchids were opportunistic taxa that repeatedly colonized these salinity-stressed estuarine channels, leading to a series of adaptive innovations, including colonization of plant stems during the Early Devonian (Beartooth Butte Formation) and possibly flexible, soft-algal substrata during the Middle Devonian (Maywood Formation, this study). Tectonic quiescence during the Early and Middle Devonian indicates that erosion and subsequent deposition of the Maywood and the underlying Beartooth Butte Formation channels were responses to major eustatic events. Over a span of nearly 30 Myr, channels were cut successively during lowstand conditions and a distinctive faunal assemblage with microconchids tracked marine transgressions into the channels.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Paleontological Society
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
PALEONTOLOGY
dc.subject
GIVETIAN
dc.subject
MAYWOOD FORMATION
dc.subject
WYOMING
dc.subject.classification
Paleontología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Adaptive function and phylogenetic significance of novel skeletal features of a new Devonian microconchid tubeworm (Tentaculita) from Wyoming, USA
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-12-13T18:52:15Z
dc.journal.volume
96
dc.journal.number
1
dc.journal.pagination
112-126
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Lawrence
dc.description.fil
Fil: Zaton, Michał. Universidad de Silesia; Polonia
dc.description.fil
Fil: Hu, Mingxi. State University of Colorado at Boulder; Estados Unidos
dc.description.fil
Fil: Di Pasquo Lartigue, Maria. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina
dc.description.fil
Fil: Myrow, Paul M.. State University of Colorado at Boulder; Estados Unidos
dc.journal.title
Journal of Paleontology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.cambridge.org/publishoa
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/jpa.2021.71
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