TY - JOUR
T1 - Middle Jurassic worm borings, and a new giant ichnospecies of Trypanites from the Bajocian-Dinantian unconformity, southern England
AU - Cole, Alan
AU - Palmer, Timothy John
PY - 1999
Y1 - 1999
N2 - The tilted Carboniferous Limestone in the eastern Mendips is transected by a remarkably planar unconformity, formed by the Bajocian transgression. The unconformity is riddled with borings, of which the most common ichnogenus , Trypanites, reaches densities in excess of 10 per cm2, Based on a marked bimodal size distribution they are classified as two ichnospecies: T. weisei (Magdefrau, 1932) and T.fosteryeo mani (ichnosp. nov.). The larger of these, T.fosteryeomani, is seen to penetrate to depths exceeding 400 mm. Central tubes observed in T. weisei, thought to represent a mould of the body of the Trypanites animal, are described. From these observations inferences concerning the mode of life are made.
AB - The tilted Carboniferous Limestone in the eastern Mendips is transected by a remarkably planar unconformity, formed by the Bajocian transgression. The unconformity is riddled with borings, of which the most common ichnogenus , Trypanites, reaches densities in excess of 10 per cm2, Based on a marked bimodal size distribution they are classified as two ichnospecies: T. weisei (Magdefrau, 1932) and T.fosteryeo mani (ichnosp. nov.). The larger of these, T.fosteryeomani, is seen to penetrate to depths exceeding 400 mm. Central tubes observed in T. weisei, thought to represent a mould of the body of the Trypanites animal, are described. From these observations inferences concerning the mode of life are made.
UR - http://hdl.handle.net/2160/36257
U2 - 10.1016/S0016-7878(99)80070-4
DO - 10.1016/S0016-7878(99)80070-4
M3 - Article
SN - 0016-7878
VL - 110
SP - 203
EP - 209
JO - Proceedings of the Geologists' Association
JF - Proceedings of the Geologists' Association
IS - 3
ER -