Nichkesaisk Formation

{{short description|Campanian geologic formation in Kyrgyzstan}}

{{Infobox rockunit

| name = Nichkesaisk Formation

| image =

| caption =

| type = Geological formation

| age = Early Campanian
~{{fossil range|75}}

| period = Campanian

| prilithology = Claystone

| otherlithology =

| namedfor =

| namedby =

| region = Jalal-Abad

| country = Kyrgyzstan

| coordinates = {{coord|41.2|N|71.3|E|display=inline,title}}

| paleocoordinates = {{coord|34.9|N|64.7|E|display=inline}}

| unitof =

| subunits =

| underlies =

| overlies =

| thickness =

| extent = Fergana Valley

| area =

| map = {{Location map+ | Kyrgyzstan

| relief = 1

| width = 250

| float = center

| places =

{{Location map~ | Kyrgyzstan

| lat_deg = 41.2

| lon_deg = 71.3

| mark = Lightgreen pog.svg

| marksize = 12

}}

{{Location map~ | Kyrgyzstan

| lat_deg = 41.3

| lon_deg = 72.0

| mark = Lightgreen pog.svg

| marksize = 10

}}

{{Location map~ | Kyrgyzstan

| lat_deg = 41.4

| lon_deg = 72.2

| mark = Lightgreen pog.svg

| marksize = 10

}}

}}

| map_caption =

}}

The Nichkesaisk or Nichkesai Formation is an early Campanian geologic formation in Kyrgyzstan.[https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Nichkesai&group_formation_member=Nichkesai Nichkesai Formation] at Fossilworks.org Fossil dinosaur eggs have been reported from the formation.Weishampel et al., 2004, pp.517-607