Khuren Dukh Formation

{{Short description|Geological formation in Mongolia}}

{{Infobox rockunit

| name = Khuren Dukh Formation

| image =

| caption =

| type = Geological formation

| age = Early Cretaceous
(Aptian–Albian),{{Cite journal |last1=Hasegawa |first1=Hitoshi |last2=Ando |first2=Hisao |last3=Hasebe |first3=Noriko |last4=Ichinnorov |first4=Niiden |last5=Ohta |first5=Tohru |last6=Hasegawa |first6=Takashi |last7=Yamamoto |first7=Masanobu |last8=Li |first8=Gang |last9=Erdenetsogt |first9=Bat-Orshikh |last10=Heimhofer |first10=Ulrich |last11=Murata |first11=Takayuki |last12=Shinya |first12=Hironori |last13=Enerel |first13=G. |last14=Oyunjargal |first14=G. |last15=Munkhtsetseg |first15=O. |date=2018-02-27 |title=Depositional ages and characteristics of Middle– Upper Jurassic and Lower Cretaceous lacustrine deposits in southeastern Mongolia |journal=Island Arc |language=en |volume=27 |issue=3 |doi=10.1111/iar.12243 |bibcode=2018IsArc..27E2243H |issn=1038-4871}} {{fossilrange|119.7|100}}

| period = Albian

| prilithology = Sandstone, conglomerate, siltstone, mudstone

| otherlithology =

| namedfor =

| namedby =

| region = Dornogovi Province

| country = Mongolia

| coordinates = {{coord|45.9|N|108.4|E|display=inline,title}}

| paleocoordinates = {{coord|49.3|N|100.2|E|display=inline}}

| unitof =

| subunits = Lower, Middle & Upper Members

| underlies = Terrace deposit, Basalt

| overlies = Khalzan Uul Formation, Basement

| thickness = Over {{convert|100|m|ft|abbr=on}}

| extent = Choyr Basin

| area =

| map = {{Location map+ | Mongolia

| relief = 1

| width = 250

| float = center

| places =

{{Location map~ | Mongolia

| lat_deg = 45.9

| lon_deg = 108.4

| mark = Green pog.svg

| marksize = 10

}}

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| map_caption =

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The Khuren Dukh Formation, also known as the Khukhtyk Formation, Khukhteeg Formation, or Hühteeg Svita, ({{langx|mn|Хөхтээг формаци}}, {{lang|mn-latn|Khökhteeg Formatsi}}), is a geological formation in Mongolia whose strata date back to the Aptian–Albian ages of the Early Cretaceous.{{Cite journal |last1=Nosova |first1=Natalya |last2=Kostina |first2=Elena |date=2022-09-01 |title=New findings of the female reproductive structures of Umaltolepis Krassilov and associated leaves of Pseudotorellia Florin in the Lower Cretaceous of Mongolia |url=https://www.sciencedirect.com/science/article/pii/S003466672200094X |journal=Review of Palaeobotany and Palynology |volume=304 |pages=104696 |doi=10.1016/j.revpalbo.2022.104696 |bibcode=2022RPaPa.30404696N |issn=0034-6667|url-access=subscription }}Nichols et al., 2006 Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel et al., 2004, pp.563-570