There were large reef communities that harbored squidlike nautiloids.

海中还有大量像乌贼一样躲在礁石下软体动物。

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Study of the attitudes of the fossil orthocone nautiloids indicate that the paleocurrents were from north to south during the deposition of the Sandaokan Formation.

直形壳鹦鹉螺类化石产出状态的研究等表明三道坎组古流向是自北而南的。

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Study of the attitudes of the fossil orthocone nautiloids indicate that the paleocurrents were from north to south during the deposition of the Sandaokan Formation.

直形壳鹦鹉螺类化石产出状态的研究等表明三道坎组古流向是自北而南的。

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