Campbell, J. D. (1968). Rastelligera (Brachiopoda) of the Upper Triassic of New Zealand. Transactions of the Royal Society of New Zealand (Geology). 6: 23-27.

501758

Campbell, J. D.

1968

6: 23-27

Publication

Rastelligera Hector, 1878, is a spiriferinid genus in which denticulation of the ventral hinge-line developed as the dental lamellae became progressively reduced, the hinge-teeth were reduced in size and both lamellae and teeth became lost. The genus is distributed through 6,000 ft of sediments in the Otamitan, Warepan, and Otapirian local stages of New Zealand (Carnian to Rhaetian). Two branches are distinguishable in Otapirian forms: one shows alation and size increase and includes the type species, elongata. The other comprises smaller mucronate forms. It is probable that Rastelligera developed from spondylium-bearing Psioidiella gen. nov., the earliest species of which appeared in the Oretian (earlier Camian) of New Zealand. Psioidiella continued to occupy the New Zealand-New Caledonia region until the end of Triassic time.

Brachiopoda

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