Leptotheuthis

{{Short description|Extinct genus of molluscs}}

{{Speciesbox

| image = Eichstätt Leptoteuthis gigas.jpg

| display_parents = 4

| genus = Leptotheuthis

| species = gigas

| authority = Meyer, 1834

| synonyms = *Leptoteuthis d'Orbigny, 1845 (Unjustified Emendation)

}}

Leptotheuthis{{Cite web |title=Leptotheuthis Meyer, 1834 |url=https://www.gbif.org/species/4625487 |access-date=2023-11-21 |website=www.gbif.org |language=en}} is a monospecific genus of cephalopod known primarily from gladii, with soft parts often preserved in the German Solnholfen limestone.Donovan, Desmond & Fuchs, Dirk. (2016). Fossilized Soft Tissues in Coleoidea. Treatise Online. 73. 10.17161/to.v0i0.5675.Košťák, M., Schlögl, J., Fuchs, D. et al. Fossil evidence for vampire squid inhabiting oxygen-depleted ocean zones since at least the Oligocene. Commun Biol 4, 216 (2021). https://doi.org/10.1038/s42003-021-01714-0 The name is sometimes misspelled as Leptoteuthis, after an unjustified emendation published in 1845.{{Cite web |title=Leptoteuthis d'Orbigny, 1845 |url=https://www.gbif.org/species/3245646 |access-date=2023-11-21 |website=www.gbif.org |language=en}}