| Reference Type | Journal (article/letter/editorial) |
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| Title | Middle Ordovician (Chazy Group) cavity-dwelling boring sponges |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | Kobluk, David R. | Author |
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| Year | 1981 (June 1) | Volume | 18 |
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| Issue | 6 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e81-105Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 477145 | Long-form Identifier | mindat:1:5:477145:0 |
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| GUID | 0 |
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| Full Reference | Kobluk, David R. (1981) Middle Ordovician (Chazy Group) cavity-dwelling boring sponges. Canadian Journal of Earth Sciences, 18 (6) 1101-1108 doi:10.1139/e81-105 |
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| Plain Text | Kobluk, David R. (1981) Middle Ordovician (Chazy Group) cavity-dwelling boring sponges. Canadian Journal of Earth Sciences, 18 (6) 1101-1108 doi:10.1139/e81-105 |
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| In | (1981, June) Canadian Journal of Earth Sciences Vol. 18 (6) Canadian Science Publishing |
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| Abstract/Notes | Microcavities in lower Middle Ordovician bryozoan mounds from the Laval Formation (Chazy Group) near Montreal, Quebec contain evidence that endolithic (boring) sponges were present. Ramose borings with scalloped walls and swellings resembling endolithic sponge galleries, faceted carbonate grains similar to modern sponge chips, and siliceous spicules both in situ on the cavity wall or roof and in the sediment, all point to the activities of endolithic sponges in the hard substrate of the wall and roof.Coelobiontic (cavity-dwelling) endolithic sponges therefore infested cavities in skeletal mounds and reefs in the Middle Ordovician and appear to have exploited the cavity habitat very soon after the appearance of metazoan skeletal reefs in the Ordovician. |
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