Pseudagnostus

Reconstructed cranidium and pygidium of Pseudagnostus (Pseudagnostus) parvus, from Shergold (1980).

Belongs within: Diplagnostidae.

Pseudagnostus is a genus of Late Cambrian agnostids. Its members have a spectaculate cephalon, with the axial glabellar node lying to the rear of the anterior furrow and of the anterolateral lobes, the latter being separated sagitally (Shergold 1980).

<==Pseudagnostus Jaekel 1909 S80
    |  i. s.: P. angustilobus S80
    |         P. chinensis (Dames 1883) S80
    |         P. idalis Öpik 1967 S80
    |         P. leptoplastorum Westergaard 1944 S80
    |         P. prolongus S80
    |         P. pseudocyclopyge Ivshin 1962 S80
    |         P. vastulus S80
    |         P. vulgaris Rosova 1960 S80
    |--P. (Pseudagnostus) S80
    |    |--*P. (P.) cyclopyge (Tullberg 1880) [=Agnostus cyclopyge] S80
    |    |--P. (P.) aulax Shergold 1980 S80
    |    |--P. (P.) bulgosus Öpik 1967 S80
    |    |--P. (P.) communis (Hall & Whitfield 1877) [=Agnostus communis] S80
    |    |--P. (P.) mortensis Shergold 1980 S80
    |    |--P. (P.) orientalis S80
    |    |--P. (P.) parvus Shergold 1980 S80
    |    |--P. (P.) primus Kobayashi 1962 S80
    |    `--P. (P.) tricanthus Shergold 1980 S80
    |--P. (Pseudagnostina Palmer 1962) S80
    `--P. (Sulcatagnostus) securiger Lake 1906 [=Sulcatagnostus securiger] S80

*Type species of generic name indicated

REFERENCES

[S80] Shergold, J. H. 1980. Late Cambrian trilobites from the Chatsworth Limestone, western Queensland. Bureau of Mineral Resources, Geology and Geophysics – Bulletin 186: 1-111.