Name/Title
Trochonema (Gastropod)Entry/Object ID
LN2009.3.21Description
One or two specimens of a gastropod genus identified in the original catalog as Trochonema.
This presents issues with the given age of Miocene, since Trochonema went extinct in the Permian. Southwest Oregon has some of the oldest rocks in the state, so it is possible that the identification is correct. The given age could be wrong instead, or perhaps the fossil was weathered out, transported, and redeposited into younger sediments.
Phylum: Mollusca
Class: Gastropoda
Order: †Murchisoniina
Family: †Trochonematidae
Genus: †TrochonemaCollection
Dan & Carole Nielson Fossil CollectionAcquisition
Source (if not Accessioned)
From the private collection of Dan & Carole NielsonDimensions
Width
6 inLength
5-1/2 inDimension Notes
6 wide x 5.5 long. Units not given, but assumed to be inches. Width by length was the measurement here, which could mean the prior assumption of length by width was wrong.Location
Location
Room
Delmar Smith HallBuilding
Crater Rock MuseumCategory
Permanent