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(1866) III.—On the Occurrence of a Recent Species of Trigonia (T. Lamarckii) in Tertiary Deposits in Australia. Geological Magazine, S. 1 Vol. 3 (23) 201-203 doi:10.1017/s0016756800197985

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Reference TypeJournal (article/letter/editorial)
TitleIII.—On the Occurrence of a Recent Species of Trigonia (T. Lamarckii) in Tertiary Deposits in Australia
JournalGeological Magazine
Year1866 (May)Series:Volume1:3
Issue23
PublisherCambridge University Press (CUP)
DOIdoi:10.1017/s0016756800197985
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Mindat Ref. ID264310Long-form Identifiermindat:1:5:264310:0
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Full Reference(1866) III.—On the Occurrence of a Recent Species of Trigonia (T. Lamarckii) in Tertiary Deposits in Australia. Geological Magazine, S. 1 Vol. 3 (23) 201-203 doi:10.1017/s0016756800197985
Plain Text(1866) III.—On the Occurrence of a Recent Species of Trigonia (T. Lamarckii) in Tertiary Deposits in Australia. Geological Magazine, S. 1 Vol. 3 (23) 201-203 doi:10.1017/s0016756800197985
In(1866, May) Geological Magazine S. 1 Vol. 3 (23) Cambridge University Press (CUP)
Abstract/NotesIn No. VI. of the “Quarterly Journal of Science” I gave a brief account of the Trigonia semiundulata, M'Coy, MS., which has been found in certain Tertiary strata in the Colonies of Victoria and South Austraila, and which had been named, but not described, by Professor M'Coy. This species differs altogether from the recent forms, and approaches very closely in its essential characters to the members of the group “costata”, characteristic of the Oolites. It was therefore remarked, in the communication referred to, that its occurrence in Tertiary strata in Australia added another link to the chain of evidence which connects the recent fauna of that region with the Oolitic fauna of Europe. But doubt may be expressed as to the exact value to be assigned to this similarity in facies between two faunæ so widely separated in time; and it is a fair question whether the discovery of this Trigonia does not diminish, rather than add to the apparent peculiarity of the existing Australian fauna.


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