Published January 18, 2024 | Version v1
Taxonomic treatment Open

Chironomidae

  • 1. Elena D. Lukashevich, Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow 117647, Russia
  • 2. Jörg Ansorge, Institute of Geography and Geology, University of Greifswald, Friedrich-Ludwig-Jahn-Straβe 17 a, D- 17487 Greifswald, Germany

Description

Family Chironomidae incertae sedis

(Fig. 5)

Material. SNHMB-G.5997, part and counterpart of an incomplete wing, without anterior part.

Locality and horizon. Fuchsberg near Seinstedt, Lower Saxony, Germany; ’Fossilführende Wechselfolge’ alternating fine grained sand, silt and clay, Shipingia gerbachmanni conchostracan zone; latest Sevatian (uppermost Norian); Upper Triassic.

Description. Isolated small wing 2.75 mm long, not less than 1 mm wide, Sc visible in proximal wing half without apical portion; arculus present; radius with three branches, R 1, R 2+3 and R 4+5; R 2+3 well separated from R 1 and R 4+5, only proximal portion preserved; R 4+5 slightly curved; Rs stem short, basal portion of R 4+5 1.5 times and crossvein r-m 3 times as long as Rs stem; media with two branches, M 1+2 and M 3+4, basal portion of M 3+4 (MCu of authors) long; Rs stem, bas R 4+5, r-m and bas M 3+4 aligned, forming “cord”; CuP visible at least up to level of m-cu; anal lobe distinct; setae on veins invisible.

Remark. Due to the incompletely preserved wing the subfamilial affinity is uncertain (see Discussion).

Notes

Published as part of Lukashevich, Elena Dmitrievna & Ansorge, Jörg, 2024, First Upper Triassic Diptera (Insecta) from Germany, pp. 115-129 in Zootaxa 5403 (1) on pages 121-122, DOI: 10.11646/zootaxa.5403.1.8, http://zenodo.org/record/10561687

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Linked records

Additional details

Biodiversity

Material sample ID
SNHMB-G.5997
Kingdom
Animalia
Phylum
Arthropoda
Order
Diptera
Family
Chironomidae
Taxon rank
family