Species: podura LANKESTER, 1870
Etymology:

Holotype: University Museum, Oxford, D. 96

Locality: Bush Pitch near Ledbury, Herefordshire County, England.

Horizon: Lower Red Downton Formation.

Biostratigraphy:

Age: Downtonian, Ludlovian Epoch, Late Silurian.

Material: Median plate.

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Species: macanuffi HALSTEAD TARLO, 1964
Etymology: In honor of Dr. J. W. MacAnuff of the Nuffield Foundation, London.

Holotype: Geological Survey Museum, London, 55505

Locality: Bush Pitch near Ledbury, Herefordshire County, England.

Horizon: Lower Red Downton Formation.

Biostratigraphy:

Age: Downtonian, Ludlovian Epoch, Late Silurian.

Material: Median plate.

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Species: grindrodi HALSTEAD TARLO, 1964
Etymology: In honor of the late Dr. R. B. Grindroid, who made the original collectionof Kollostrakon from Bush Pitch.

Holotype: BMNH P. 8896

Locality: Bush Pitch near Ledbury, Herefordshire County, England.

Horizon: Lower Red Downton Formation.

Biostratigraphy:

Age: Downtonian, Ludlovian Epoch, Late Silurian.

Material: Tessera.

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Species: alleni HALSTEAD TARLO, 1964
Etymology: In honor of Mr. J. R. L. Allen of the University of Reading.

Holotype: BMNH P. 26854-5

Locality: Common Bach, Dorstone, Herefordshire County, England.

Horizon: Lower Red Downton Formation.

Biostratigraphy:

Age: Downtonian, Ludlovian Epoch, Late Silurian.

Material: Median plate.