Clathroceras is an extinct genus of straight oncocerid belonging to the family Trimeroceratidae.

It comprises several species, including Clathroceras plicatum[1] and C.

[2] C. plicatum was discovered in Gotland, Sweden, and C. sulcatum in the Czech Republic.

The latter was originally classified as part of the distantly-related oncocerid genus Phragmoceras.

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