| 词条 | Wretton SSSI |
| 释义 |
|image= Cut off Channel - geograph.org.uk - 570156.jpg |image_caption = |name= Wretton SSSI |aos= Norfolk |interest=Geological |gridref={{gbmappingsmall|TL 684 992}}[1] |area= {{convert|20.6|ha|acre|abbr=off}}[1] |notifydate= 1985[1] |map=Magic Map }}Wretton SSSI is a {{convert| 20.6 |ha|acre|abbr=off |adj=on }} geological Site of Special Scientific Interest north-east of Downham Market in Norfolk.[1][2] It is a Geological Conservation Review site.[3][4] This site exposes layer across the transition between the warm Ipswichian and the colder Devensian around 115,000 years ago. It has the richest assemblage of early Devensian vertebrate fossils in Britain, including arctic fox, bison and woolly rhinoceros.[5] A footpath runs along the boundary of part of the site. References1. ^1 2 3 {{cite web|url= https://designatedsites.naturalengland.org.uk/SiteDetail.aspx?SiteCode=S1003441&SiteName=&countyCode=29&responsiblePerson=&SeaArea=&IFCAArea= |title=Designated Sites View: Wretton | series= Sites of Special Scientific Interest|publisher=Natural England|accessdate = 24 June 2018}} {{commons category|Wretton SSSI}}{{coord| 52.565|0.483 |type:landmark_region:GB-BNE|display=title}}{{SSSIs Norfolk }}2. ^{{cite web|url=http://magic.defra.gov.uk/MagicMap.aspx?startTopic=Designations&activelayer=sssiIndex&query=HYPERLINK%3D%271003441%27 |title=Map of Wretton|series= Sites of Special Scientific Interest|publisher=Natural England|accessdate= 24 June 2018}} 3. ^{{cite web|url= http://jncc.defra.gov.uk/default.aspx?page=4174&gcr=1164http://jncc.defra.gov.uk/default.aspx?page=4174&gcr=1164|title= Wretton (Pleistocene Vertebrata)|series=Geological Conservation Review |publisher=Joint Nature Conservation Committee|accessdate= 25 May 2018}} 4. ^{{cite web|url= http://jncc.defra.gov.uk/default.aspx?page=4174&gcr=604 |title= Wretton (Quaternary of East Anglia) |series=Geological Conservation Review |publisher=Joint Nature Conservation Committee|accessdate= 25 May 2018}} 5. ^{{cite web|url= https://designatedsites.naturalengland.org.uk/PDFsForWeb/Citation/1003441.pdf |title=Wretton citation|series= Sites of Special Scientific Interest|publisher=Natural England|accessdate= 24 June 2018}} 2 : Sites of Special Scientific Interest in Norfolk|Geological Conservation Review sites |
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