1952
DOI: 10.5962/p.351749
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Presidential Address: The Ordovician Corals.

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Cited by 9 publications
(3 citation statements)
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“…The struc ture of its axial region and one-half its septate region is completely obliterated by dolomitization, so that one cannot be certain whether an axial structure was present originally, as the writer suspects, and if so, whether it was a columella, as in Bighornia Duncan (1957), or a structure of septal lobes, as in Streptelasma, though the latter seems more likely in view of the general septal arrangement. The corallum appears to be neither angulate nor flattened on one side; angulate and flattened coralla are common in the Upper Ordovician (Hill, 1951;Duncan, 1956), but nonangulate streptelasmids also occur therein.…”
Section: Systematic Descriptionsmentioning
confidence: 99%
“…The struc ture of its axial region and one-half its septate region is completely obliterated by dolomitization, so that one cannot be certain whether an axial structure was present originally, as the writer suspects, and if so, whether it was a columella, as in Bighornia Duncan (1957), or a structure of septal lobes, as in Streptelasma, though the latter seems more likely in view of the general septal arrangement. The corallum appears to be neither angulate nor flattened on one side; angulate and flattened coralla are common in the Upper Ordovician (Hill, 1951;Duncan, 1956), but nonangulate streptelasmids also occur therein.…”
Section: Systematic Descriptionsmentioning
confidence: 99%
“…Lichenaria. The Canomodine Limestone dips off andesites on its south-west margin, and as the fossils and lithology are similar in Canomodine and Cargo Creek Limestones, the two formations are considered to be equivalent, either Upper Ordovician or Lower Silurian (Hill, 1955). The intervening formation of siltstones and arenites in the Cargo Creek area clearly overlies the Cargo Creek Limestone and appears to be faulted against the Canomodine Limestone, as graded bedding in the siltstones gives no evidence of overfolding.…”
Section: Limestones Of the Cargo Districtmentioning
confidence: 99%
“…Lichenaria sp., the corallites having much the same dimensions as those of ZL. ramosa Hill (1955) Individual trabeculae cannot be distinguished in the walls or septa of the holotype and there is no appearance of spines on the axial edges of the septa.…”
Section: Systematicmentioning
confidence: 99%