Deep Spring Formation
{{Short description|Geologic formation in Nevada, United States}}
{{Infobox rockunit
| name = Deep Spring Formation
| image =
| caption =
| period = Ediacaran
| age = Ediacaran - Cambrian {{fossilrange|540|527}}{{cite journal |last1=Smith |first1=Emily F. |last2=Nelson |first2=Lyle L. |last3=O’Connell |first3=Nizhoni |last4=Eyster |first4=Athena |last5=Lonsdale |first5=Mary C. |title=The Ediacaran−Cambrian transition in the southern Great Basin, United States |journal=GSA Bulletin |date=22 September 2022 |doi=10.1130/B36401.1}}
| type = Geological Formation
| prilithology = Limestone
| otherlithology = Quartzite, Siltstone
| namedfor =
| namedby =
| region = Nevada
| country = United States
| coordinates =
| unitof =
| subunits = Dunfee, Esmeralda and Gold Point Members
| underlies = Campito Formation{{Cite Q|Q57805921|page=H7}}
| overlies = Reed Dolomite
| thickness = 549 m (1800 ft)
| extent =
| area =
| map =
| map_caption =
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The Deep Spring Formation is a geologic formation in Nevada. It preserves fossils dating back to the Ediacaran and Cambrian periods, like Wutubus and Elainabella.{{cite journal |last1=Smith |first1=E.F. |last2=Nelson |first2=L.L. |last3=Strange |first3=M.A. |last4=Eyster |first4=A.E. |last5=Rowland |first5=S.M. |last6=Schrag |first6=D.P. |last7=Macdonald |first7=F.A. |title=The end of the Ediacaran: Two new exceptionally preserved body fossil assemblages from Mount Dunfee, Nevada, USA |journal=Geology |date=1 November 2016 |volume=44 |issue=11 |pages=911–914 |doi=10.1130/G38157.1}}{{Cite journal|last1=Rowland|first1=Stephen M.|last2=Rodriguez|first2=Margarita G.|date=March 2014|title=A Multicellular Alga with Exceptional Preservation from the Ediacaran of Nevada|url=https://www.cambridge.org/core/journals/journal-of-paleontology/article/abs/multicellular-alga-with-exceptional-preservation-from-the-ediacaran-of-nevada/1403B9E2739A2BBA6C5EF298C7D7F553|journal=Journal of Paleontology|language=en|volume=88|issue=2|pages=263–268|doi=10.1666/13-075|s2cid=129796477 |issn=0022-3360|url-access=subscription}} It is also currently the only known Ediacaran Lagerstätten in the Southwestern United States.
Paleobiota
The first organism to be described from the Deep Spring Formation in 2014 was Elainabella in the Esmeralda Member, an enigmatic alga with similarities to green algae, suggesting that part of the formation was at one point a shallow marine environment or a microbial reef community. More organisms would be described in 2016, most of which are ichnogenus' like Planolites, and even some tubular forms, like Wutubus, expanding not only the stratigraphic range of some of these forms, but also their biogeographic range.
{{Paleobiota-key-compact}}
| class="wikitable sortable" style="width:70%;"
! colspan="5" align="center" |Paleobiota |
| Genus
!Species !Notes !Images |
|---|
| Costatubus{{cite journal |last1=Selly |first1=Tara |last2=Schiffbauer |first2=James D. |last3=Jacquet |first3=Sarah M. |last4=Smith |first4=Emily F. |last5=Nelson |first5=Lyle L. |last6=Andreasen |first6=Brock D. |last7=Huntley |first7=John Warren |last8=Strange |first8=Michael A. |last9=O’Neil |first9=Gretchen R. |last10=Thater |first10=Casey A. |last11=Bykova |first11=Natalia |last12=Steiner |first12=Michael |last13=Yang |first13=Ben |last14=Cai |first14=Yaoping |title=A new cloudinid fossil assemblage from the terminal Ediacaran of Nevada, USA |journal=Journal of Systematic Palaeontology |date=16 February 2020 |volume=18 |issue=4 |pages=357–379 |doi=10.1080/14772019.2019.1623333}}
|
|Tubular fossil, first occurrence in this formation and new species. | |
| Conotubus
|
|Non-biomineral tubular fossil. | |
| Gaojiashania
|
|Worm-like organism. | |
| Saarina
|
|Tubular fossil, first occurrence in this formation and new species. |
| Wutubus
|
|Tubular fossil. |File:Wutubus-annularis-White-arrows-in-a-b-point-to-apex-and-black-arrow-in-a-points-to_Wutubus.png |
| style="background:#D1FFCF;" |Elainabella
|style="background:#D1FFCF;" |
|style="background:#D1FFCF;" |Enigmatic filamentous multicellular alga. |style="background:#D1FFCF;" |File:ElainabellaReconstruction.jpg |
| style="background:#FEF6E4;"|Bergaueria?
|style="background:#FEF6E4;"|
|style="background:#FEF6E4;"|Resting place of Cnidarians. |style="background:#FEF6E4;"|File:Bergaueria radiata.png |
| style="background:#FEF6E4;"|Neonereites?
|style="background:#FEF6E4;"|
|style="background:#FEF6E4;"|Burrows. |style="background:#FEF6E4;"|File:Neonereites uniserialis Punta San García 01.JPG |
| style="background:#FEF6E4;"|Planolites
|style="background:#FEF6E4;"|
|style="background:#FEF6E4;"|Burrows. |style="background:#FEF6E4;"|File:Planolites.jpg |
| style="background:#FEF6E4;"|Scolicia?
|style="background:#FEF6E4;"|
|style="background:#FEF6E4;"|Burrows. |style="background:#FEF6E4;"|File:Ichnofossils - Scolicia strozzii.JPG |
See also
{{Portal|Earth sciences|United States|Paleontology}}
References
{{Reflist}}
- {{cite web|title= Fossilworks: Gateway to the Paleobiology Database|author= ((Various Contributors to the Paleobiology Database))|url= https://www.fossilworks.org|access-date= 17 December 2021}}
Category:Ediacaran geology of Nevada
Category:Cambrian geology of Nevada
Category:Cambrian southern paleotropical deposits
Category:Limestone formations of the United States
Category:Siltstone formations of the United States
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