New Zealand Journal of Geology and Geophysics abstracts
First fossil occurrence of the austral bryozoan family Urceoliporidae
DENNIS P. GORDON
National Institute of Water & Atmospheric Research
P.O. Box 14-901, Kilbirnie
Wellington, New Zealand
Abstract The cheilostome bryozoan family Urceoliporidae has
not previously been discovered in the fossil record, hitherto comprising only
three Recent species in two genera from Australia and New Zealand.
Urceolipora miocenica n. sp. is described from the Pakaurangi Formation,
Waitemata Group, from Pakaurangi Point, Kaipara Harbour, New Zealand. Thus,
both families of the superfamily Urceoliporoidea (Urceoliporidae and
Prostomariidae) are now known from the Early Miocene. The new species is made
the type of a new subgenus, Cureolipora, chiefly distinguished from
Urceolipora sensu stricto by the lack of a longitudinal ridge dividing
the frontal shield into two sectors, and also by the lack of an orificial sinus
and lateral-oral horns. More than 215 species of Bryozoa are now known to occur
in the New Zealand Miocene, more than half of which are undescribed.
Keywords Waitemata Group; Pakaurangi Formation; Kaipara
Harbour; Otaian; Miocene; Bryozoa; Cheilostomata; Urceoliporidae;
Urceolipora; new taxa; paleoenvironment
New Zealand Journal of Geology & Geophysics, 2000, Vol. 43:
385-389
0028-8306/00/4303-0385 $7.00/0 (c) The Royal Society of New Zealand
2000
PDF file of entire paper: medium quality (1126K); (scanned from paper original: notes about this process)
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