Gram Formation

{{short description|Geologic formation in Gram, Denmark}}

{{Infobox rockunit

| name = Gram Formation

| image = Gram Lergrav 2020 3.jpg

| caption = Gram Clay Pit, the prime source of fossils from the Gram Formation

| type = Formation

| age = Tortonian
~{{fossil range|11.6|7.2}}

| period = Tortonian

| prilithology = Claystone

| otherlithology =

| namedfor = Gram

| namedby =

| region = Jutland

| country = Denmark

| coordinates = {{coord|55.3|N|9.1|E|display=inline,title}}

| paleocoordinates = {{coord|55.6|N|8.1|E|display=inline}}

| unitof =

| subunits =

| underlies =

| overlies =

| thickness =

| extent =

| area =

| map = {{Location map+ | Denmark

| relief = 1

| width = 250

| float = center

| places =

{{Location map~ | Denmark

| lat_deg = 55.3

| lon_deg = 9.1

| mark = Yellow pog.svg

| marksize = 10

}}

}}

| map_caption =

}}

The Gram Formation is a geological formation in Gram, Denmark. It preserves fossils dating from the Miocene period. The formation consists of three layers: the glauconite-rich, the Gram Clay, and the Gram sand. The sediments in the formation were deposited in an open marine depositional environment known as the Gram Sea. The Gram Formation was a very animal rich environment, having many different animals like whales, sharks, rays and fish. Sharks like basking shark and sandtiger shark lived in the area, but the most famous and biggest shark of this formation was Otodus megalodon. Megalodon would have been the apex predator of Denmark during the Miocene.