MolluscaBase name details
Unio mammillaris Yen, 1952 †
1502991 (urn:lsid:marinespecies.org:taxname:1502991)
unaccepted > superseded combination
Species
fossil only
Yen, T.-C. (1952). Molluscan Fauna of the Morrison Formation. <em>United States Geological Survey Professional Paper.</em> 233-B: 21-51.
page(s): 36-37, pl. 4, fig. 1a-e [details] Available for editors
[request]
page(s): 36-37, pl. 4, fig. 1a-e [details] Available for editors
![PDF available PDF available](https://www.marinespecies.org/aphia/images/pdf_lock.png)
Holotype USNM 107064
, Note "North of springs on Big Spring Creek, about 7...
Holotype USNM 107064 [details]
Type locality "North of springs on Big Spring Creek, about 7 miles SE. of Lewiston, Fergus County, Montana", USA; Morrison Fm., Late Jurassic [details]
MolluscaBase eds. (2021). MolluscaBase. Unio mammillaris Yen, 1952 †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1502991 on 2024-07-01
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original description
Yen, T.-C. (1952). Molluscan Fauna of the Morrison Formation. <em>United States Geological Survey Professional Paper.</em> 233-B: 21-51.
page(s): 36-37, pl. 4, fig. 1a-e [details] Available for editors
[request]
page(s): 36-37, pl. 4, fig. 1a-e [details] Available for editors
![PDF available PDF available](https://www.marinespecies.org/aphia/images/pdf_lock.png)
![](https://www.marinespecies.org/aphia/images/circle.gif)
![](https://www.marinespecies.org/aphia/images/circle.gif)
![](https://www.marinespecies.org/aphia/images/circle.gif)
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Holotype USNM 107064 [details]
Paratype USNM 106993 [details]
Paratype USNM 107027-107029 [details]
Paratype USNM 107030 [details]
From editor or global species database
Type locality "North of springs on Big Spring Creek, about 7 miles SE. of Lewiston, Fergus County, Montana", USA; Morrison Fm., Late Jurassic [details]