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Microstructural disparity between Recent fungiine and Mesozoic microsolenine scleractinians

100%

Morycowa E., Roniewicz E.

Acta Palaeontologica Polonica

1995

tom 40

nr 4

361-385

The Mesozoic families Microsolenidae, Latomeandridae, Synastreidae and Cunnolitidae basically differ from the Recent fungiids, with which they had traditionally been classified due to their having synapticulae and porous septa. We propose a new suborder Microsolenina for these families because their members possess collar-like structures (pennulae of Gill 1967) spaced along the trabeculae, tending to merge into more or less continuous flanges parallel to the septal distal margin, distributed on each face of the septa. The fungiids, having trabeculae with granulations set off from the trabecular axis towards interseptal space (vepreculae of Jell 1974), are closest to the faviids from which they probably derived.

Mycosporine-like amino acids in six scleractinian coral species

100%

Al-Utaibi A. A., Niaz G. R., Al-Lihaibi S. S.

Oceanologia

2009

tom 51

nr 1

93-104

Mycosporine-like amino acids (MAAs) were studied in stony coral species (Fungiidae) along the Eastern coast of the Red Sea. Six species – Fungia scutaria, F. danai, F. corona, F. repanda, Ctenactis echinata and Lithophyllor lobata – were examined for MAAs at water depths of 5, 10, 15 and 20 m. Protein and chlorophyll were also determined and showed higher contents in winter than in summer. Generally, the total content of MAAs in summer was found to be approximately three times greater than in winter. Overall, concentrations of MAAs were greatest at a depth of 5 m. Porphyra-334 was the most abundant MAA in F. scutaria and F. danai, whereas asterina-330 was either not detectable (e.g. L. lobata) or present in low concentrations (e.g. F. danai, F. repanda and C. echinata). Shinorine was not detected in F. danai or L. lobata. Both C. echinata and L. lobata had the lowest concentrations of MAAs, presumably because of their large calcareous skeletons. The variation in MAA concentrations among seasons and water depths is probably due to a number of factors, including the intensity of solar radiation, turbidity and phylogenetic variation.

Ograniczanie wyników

1 Acta Palaeontologica Polonica

1 Oceanologia

1 Al-Lihaibi S. S.

1 Al-Utaibi A. A.

1 Morycowa E.

1 Niaz G. R.

1 Roniewicz E.

1 2009

1 1995

Wyniki wyszukiwania

Microstructural disparity between Recent fungiine and Mesozoic microsolenine scleractinians

Mycosporine-like amino acids in six scleractinian coral species