Gyraulus

{{Short description|Genus of gastropods}}

{{Automatic Taxobox

| fossil_range= Early Cretaceous - Recent, {{fossil range|125|0}}

| image = Gyraulus takhteevi (10.3897-zookeys.762.23661) Figure 1 (cropped).jpg

| image_caption = Views of a Gyraulus takhteevi shell

| taxon = Gyraulus

| authority = Charpentier, 1837Charpentier J. de (1837). "Catalogue des mollusques terrestres et fluviatiles de la Suisse. Formant la seconde partie de la faune Helvétique". Neue Denkschriften der Allgemeinen Schweizerischen Gesellschaft für die Gesammten Naturwissenschaften - Nouveaux Mémoires de la Société Helvétique des Sciences Naturelles 1(2): 1-28, Tab. I-II [= 1-2]. Neuchatel. [https://archive.org/stream/neuedenkschrifte01allg#page/n201/mode/2up page 21].

| display_parents = 2

| type_species= Planorbis albus O. F. Müller, 1774

| synonyms = {{hidden begin|title = List}}

  • Anisus (Gyraulus) Charpentier, 1837
  • Anisus (Microanisus) Moskvicheva, 1986
  • Caillaudia Bourguignat, 1883
  • Choanomphalodes Lindholm, 1927
  • Choanomphalus (Lamorbis) Starobogatov, 1967
  • Choanomphalus (Pseudogyraulus) Prozorova & Starobogatov, 1997
  • Glyptanisus Iredale, 1943
  • Gyraulus (Caillaudia) Bourguignat, 1883
  • Gyraulus (Carinogyraulus) Polinski, 1929
  • Gyraulus (Choanomphalodes) Lindholm, 1927
  • Gyraulus (Gyraulus) Charpentier, 1837
  • Gyraulus (Lamorbis) Starobogatov, 1967
  • Gyraulus (Microanisus) Moskvicheva, 1986
  • Gyraulus (Nautilinus) Mousson, 1872
  • Gyraulus (Pygmanisus) Iredale, 1943
  • Gyraulus (Torquis) Dall, 1905
  • Lamorbis Starobogatov, 1967
  • Plananisus Iredale, 1943
  • Planaria T. Brown, 1827
  • Planorbis (Gyraulus) ICharpentier, 1837
  • Planorbis (Torquis) IDall, 1905
  • Ptychospira Slavík, 1869
  • Pygmanisus Iredale, 1943
  • Trochlea Haldeman, 1842

{{hidden end}}

}}

Gyraulus is a genus of small, mostly air-breathing, freshwater snails, aquatic pulmonate gastropod mollusks in the family Planorbidae, the ram's horn snails.Ivanov M., Hrdličková, S. & Gregorová, R. (2001) Encyklopedie zkamenělin. – Rebo Productions, Dobřejovice, 1. vydání, 312 pp., page 126. (in Czech)

The genus Gyraulus is known from the Early Cretaceous to the present. Fossils attributed to Gyraulus sp. have been found in the lakebottom sediments of the Yixian Formation in China, dating to 125 million years ago.Pan, H. and Zhu, X. (2007). "Early Cretaceous non-marine gastropods from the Xiazhuang Formation in North China." Cretaceous Research, 28(2): 215-224. {{doi|10.1016/j.cretres.2006.12.001}}

Description

Shells of the species within this genus are small, and are mostly almost planispiral in their coiling.

Distribution and habitat

The distribution of this genus is Holarctic. These snail snails live on water plants in freshwater.

Species

The following species are recognised in the genus Gyraulus:{{Cite web |title=WoRMS - World Register of Marine Species - Out of scope |url=https://www.marinespecies.org/aphia.php?p=taxdetails&id=153936 |access-date=2025-03-28 |website=www.marinespecies.org}}

{{div col|colwidth=22em}}

{{div col end}}

References

{{Reflist}}