# Saltwick Formation

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Saltwick_Formation
> Markdown URL: https://mediated.wiki/source/Saltwick_Formation.md
> Source: https://en.wikipedia.org/wiki/Saltwick_Formation
> Source revision: 1326655666
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Use dmy dates|date=April 2022}}
{{Infobox rockunit
| name           = Saltwick Formation
| image          = Quarry, Eston Nab (geograph 4040410).jpg
| caption        = Exposure of the Saltwick Formation at [Eston Nab](/source/Eston_Nab) Quarry
| type           = [Geological formation](/source/Geological_formation)
| age            = {{fossilrange|Aalenian|Aalenian|[Aalenian](/source/Aalenian)}}
| period         = Aalenian
| prilithology   = [Mudstone](/source/Mudstone), [Siltstone](/source/Siltstone), [Sandstone](/source/Sandstone)
| otherlithology = [Ironstone](/source/Ironstone)
| namedfor       = [Saltwick Bay](/source/Saltwick_Bay)
| namedby        =
| region         = [Europe](/source/Europe)
| country        = [United Kingdom](/source/United_Kingdom)
| coordinates    =
| unitof         = [Ravenscar Group](/source/Ravenscar_Group)
| subunits       =
| underlies      = [Eller Beck Formation](/source/Eller_Beck_Formation)
| overlies       = [Dogger Formation](/source/Dogger_Formation)
| thickness      = up to 50 m, thinning to 5-10 m
| extent         = [Cleveland Basin](/source/Cleveland_Basin), [Yorkshire](/source/Yorkshire)
| area           =
| map            =
| map_caption    =
}}

The '''Saltwick Formation''' is a [Middle Jurassic](/source/Middle_Jurassic) geologic [formation](/source/Formation_(geology)) in [Yorkshire](/source/Yorkshire) and the western [North Sea](/source/North_Sea). It is primarily [Aalenian](/source/Aalenian) in age. Fossil footprints, assigned to the tetrapod ichnogenus ''[Characichnos](/source/Characichnos)'', as well as [stegosaur](/source/Stegosauria) tracks have been reported from the formation.<ref>{{Cite journal |last1=Whyte |first1=M. A. |last2=Romano |first2=M. |date=2001-09-01 |title=A Dinosaur Ichnocoenosis From the Middle Jurassic of Yorkshire, UK |url=https://www.tandfonline.com/doi/abs/10.1080/10420940109380189 |journal=Ichnos |volume=8 |issue=3–4 |pages=223–234 |doi=10.1080/10420940109380189 |bibcode=2001Ichno...8..223W |s2cid=128891012 |issn=1042-0940|url-access=subscription }}</ref><ref name="dinosaurdistribution">Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.</ref> An indeterminate sauropod, nicknamed [Alan](/source/Alan_the_Dinosaur), has also been reported from the formation.<ref>{{Cite journal|last1=Manning|first1=Phillip L.|last2=Egerton|first2=Victoria M.|last3=Romano|first3=Mike|date=2015-06-01|title=A New Sauropod Dinosaur from the Middle Jurassic of the United Kingdom|journal=PLOS ONE|language=en|volume=10|issue=6|article-number=e0128107|doi=10.1371/journal.pone.0128107|issn=1932-6203|pmc=4452486|pmid=26030865|doi-access=free|bibcode=2015PLoSO..1028107M }}</ref>

==See also==
{{Portal|Earth sciences|Paleontology|Dinosaurs||}}
* [List of dinosaur-bearing rock formations](/source/List_of_dinosaur-bearing_rock_formations)
** [List of stratigraphic units with ornithischian tracks](/source/List_of_stratigraphic_units_with_ornithischian_tracks)
*** [Stegosaur tracks](/source/List_of_stratigraphic_units_with_ornithischian_tracks)

==Footnotes==
{{Reflist}}

==References==
* Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp.&nbsp;{{ISBN|0-520-24209-2}}.

Category:Aalenian Stage
Category:Ichnofossiliferous formations
Category:Mudstone formations of the United Kingdom
Category:Siltstone formations
Category:Sandstone formations

{{UK-geologic-formation-stub}}

---
Adapted from the Wikipedia article [Saltwick Formation](https://en.wikipedia.org/wiki/Saltwick_Formation) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Saltwick_Formation?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.