SCAUMENELLIZATION OF THE ACANTHODII TRIAZEUGACANTHUS-AFFINIS (WHITEAVES) FROM THE ESCUMINAC FORMATION (UPPER DEVONIAN, MIGUASHA, QUEBEC) - REVISION OF THE SCAUMENELLA-MESACANTHI GRAHAM-SMITH
SCAUMENELLIZATION OF THE ACANTHODII TRIAZEUGACANTHUS-AFFINIS (WHITEAVES) FROM THE ESCUMINAC FORMATION (UPPER DEVONIAN, MIGUASHA, QUEBEC) - REVISION OF THE SCAUMENELLA-MESACANTHI GRAHAM-SMITH
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DOI：
10.1139/e85-053
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发表时间：
1985-01-01
影响因子：
1.4
通讯作者：
ARSENAULT, M
中科院分区：
文献类型：
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作者：
BELAND, P;ARSENAULT, M
S.Mesacanthi(Graham-Smith，1935)产于魁北克上泥盆统(Miguasha，Miguasha)，最初被暂时描述为脊索动物，可能是脊椎动物。后来，人们不同程度地认为它是一种幼虫介形皮动物或某种早期的前索动物，后者是普遍接受的解释。并将其与棘豆亚纲联系起来，即亲缘三叠叶蝉Triazeugacantus affinis(Whiteaves)。“Scaumenellas”是松毛虫在石化过程中发生退化的遗骸，称为Scaumenelization。
S. mesacanthi (Graham-Smith, 1935) from the Escuminac Formation (Upper Devonian, Miguasha, Quebec) was originally described tentatively as a chordate, probably a vertebrate. It was later variously considered to be a larval ostracoderm or some early form of prochordate, the latter being the commonly accepted interpretation. A new description is presented associating it with the subclass Acanthodii, namely, Triazeugacanthus affinis (Whiteaves). "Scaumenellas" are the remains of T. affinis that have undergone a degradation during fossilization, which is named scaumenellization.