Biodiversity Literature Repository
Published November 10, 2016 | Version v1
Taxonomic treatment Open

Neoschizodus Giebel 1855

Creators

  • 1. Jackson School of Geosciences, University of Texas, Austin, TX 78712, USA; & Earth Sciences, Plymouth University, Plymouth, PL 4 8 AA, UK; & Department of Earth Sciences, Natural History Museum, London, SW 7 5 BD, UK;
  • 2. Earth Sciences, Plymouth University, Plymouth, PL 4 8 AA, UK; & Department of Geology, University of Georgia, Athens, GA 30602, USA
  • 3. Department of Earth Sciences, Natural History Museum, London, SW 7 5 BD, UK;

Description

Genus Neoschizodus Giebel, 1855

Type species. Lyrodon laevigatum (Goldfuss, 1837), Anisian, Middle Triassic, Rudersdorf, Germany.

Diagnosis. The diagnosis follows Newell & Boyd (1975). Orthogyrous to moderately prosogyrous shell with slightly incurved beak. Posterior ridge angular to subangular in transverse profile. Myophorian hinge; teeth and sockets smooth or bearing transverse striations.

Remarks. These specimens have most of the required diagnostic criteria for assignment to Neoschizodus: an orthogyrate to moderately prosogyrate shell with an incurved beak and a posterior ridge angular to subangular in transverse. The nymph, teeth and umbonal platform were not present in these specimens so it is not known whether these specimens possess the myophorian hinge that is also diagnostic of this genus. These specimens do, however, have a similar external morphology to other Early and Middle Triassic specimens assigned to Neoschizodus (e.g. Kumagae & Nakazawa 2009) and are, therefore, referred to this genus.

Notes

Published as part of Foster, William J., Danise, Silvia & Twitchett, Richard J., 2017, A silicified Early Triassic marine assemblage from Svalbard, pp. 851-877 in Journal of Systematic Palaeontology 15 (10) on page 863, DOI: 10.1080/14772019.2016.1245680, http://zenodo.org/record/10883052

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Linked records

Additional details

Identifiers

URL
http://treatment.plazi.org/id/C53B0B4D805DE8256EC4FABC8CA722CC

Is part of
Journal article: 10.1080/14772019.2016.1245680 (DOI)
Journal article: http://zenodo.org/record/10883052 (URL)
Journal article: http://publication.plazi.org/id/390273358050E82B6D0FFFE98D67263C (URL)
Journal article: http://zoobank.org/3EBCAEF3-27C2-4216-9F18-89F195FA534F (URL)
Is source of
https://sibils.text-analytics.ch/search/collections/plazi/C53B0B4D805DE8256EC4FABC8CA722CC (URL)
https://www.gbif.org/species/224611934 (URL)
https://www.checklistbank.org/dataset/292125/taxon/C53B0B4D805DE8256EC4FABC8CA722CC.taxon (URL)

Biodiversity

Family
Myophoriidae
Genus
Neoschizodus
Kingdom
Animalia
Order
Trigoniida
Phylum
Mollusca
Scientific name authorship
Giebel
Taxon rank
genus
Type status
holotype
Taxonomic concept label
Neoschizodus Giebel, 1855 sec. Foster, Danise & Twitchett, 2017

References

  • Giebel, C. 1855. Kritisches uber die Myophorien des Muschelkalkes. Zeitschrift fur ยจ die gesamten Naturwissenschaften, 5, 34.
  • Goldfuss, G. A. 1837. Petrefacta Germaniae tam ea, quae in museo universitatis regiae Borussicae Fridericae Wilhelmiae Rhenanae servantur quam alia quaecunque in museis Hoeninghusino, Muensteriano aliisque extant, iconibus et descriptionibus illustrata. Verlag lithographische Anstalt Arnz and Co, Dusseldorf, 312 pp.
  • Newell, N. D. & Boyd, D. W. 1975. Parallel evolution in early Trigoniacean bivalves. Bulletin of the American Museum of Natural History, 154, 1 - 158.
  • Kumagae, T. & Nakazawa, K. 2009. Bivalves. National Museum of Nature and Science Monographs, 38, 156 - 172.