The Upper Windom Shale - Groves Creek
Note: As always, please respect private property. Permission to collect here must be obtained from the owner.
View of creek bed. Brink of waterfalls in center of picture. The rock visible is Windom Shale approximately 1 m below the Tully Limestone / Windom Shale contact.
View looking upstream show falls formed by the Tully Limestone, and underlying Windom Shale..
Fossils from the Upper Windom Shale at Groves
(Scale divisions = 1 cm)
Aulopora serpens Goldfuss - KAW1152. See also under Atactotoechus furcatus below in "Bryozoa"
Amplexiphyllus hamiltoniae Hall) - KAW1229
Stereolasma rectum (Hall) - KAW1163
Alveolites sp. - KAW1273
An "elephant ear" shaped colony - note attachment in right image (above the right end of the scale).
Surface detail of above.
Atactotoechus furcatus - KAW1152
Above: A large branching colony; below: detail of the surface (left) and of an Aulopora serpens colony on one branch.
Fistulipora sp. - KAW 1151
Right, surface detail.
Polypora multiplex Hall - KAW1257 (detail - right)
Sulcoretipora incisurata (Hall) - KAW1212
Right: detail of frond.
Protoleptostrophia perplana (Conrad) - KAW1211
Pseudoatrypa devoniana Webster - KAW1215
Rhipidomella vanuxemi Hall - KAW1213
Platystoma lineata (Conrad) - KAW1214, KAW1462
Greenops sp. - KAW1778
Dipleura dekayi (Green) - KAW1186
Left: pygidium; right: part of thoracic segment.
Dolatocrinus sp. - KAW1257 - draped with a Polypora frond.
(To see more of this crinoid/bryozoan slab Click Here)
Dolatocrinus sp. - KAW1043 - a somewhat crushed specimen. Note detail of arms and calyx plates (right)
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Page last revised June 21, 2010