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Table of Contents

Introduction
Acknowledgements
I. MORPHOLOGY
1. Cup shapes and types of colonies
2. Outer wall
2-1. Walls with simple porosity
2-2. Walls with tumuli
2-3. Walls with bracts, canals, and annular formations
2-4. Walls with microporous sheath
3. Inner Wall
3-1. Simple porous walls
3-2. Walls with bracts and scales
3-3. Annular walls
3-4. Walls with canals
3-5. Walls with tumulus-like formations and additional sheaths
3-6. Compound walls
4. Vertical partitions. Septa.
5. Synapticulae and interseptal plates
5-1.  Synapticulae
5-2.  Interseptal plates
6. Tabulae
6-1. Plate tabulae
6-2. Retiform tabulae
6-3. Heterogeneous porous tabulae
6-4. Unusual types of plate tabulae
6-5. Tabular walls
6-6. Pectinate tabulae
6-7. Synapticular tabulae
6-8. Other tabula types
7. Structures of the upper part of the cups
7-1. Upper part of the one-walled cups: pelta
7-2. Upper part of the two-walled cups: rim
8. Dissepiments and stereoplasma
8-1. Vesicles
8-2. Stereoplasma
9. Skeletal histology
 
II. ONTOGENY

1. Order Monocyathida
2. Suborder Dokidocyathina
3. Suborder Ajacicyathina
4. Suborder Erismacoscinina
5. Suborder Tabulacyathina
6. Suborder Capsulocyathina
7. Suborder Coscinocyathina
8. Ontogeny results
 
III. THE SYSTEMATICS OF REGULAR ARCHAEOCYATHS

1. Principles of classification

2. Homological variability
3. Changes in taxonomy
3-1. Suborder Globosocyathina
3-2. Suborder Nochoroicyathina
3-3. Suborder Tabulacyathina
3-4. Suborder Coscinocyathina
3-5. Order Capsulocyathida
3-6. Comparisons with other proposals on systematics
4. Diagnosis of orders and suborders
5. Classification of regular archaeocyaths
6. Diagnosis of genera
 
IV. STRATIGRAPHIC AND GEOGRAPHIC DISTRIBUTION OF ARCHAEOCYATHA
1. Stratigraphic distribution
2. Chronology of the skeletal elements appearance
3. Palaeogeography and palaeobiogeography
 
V. ARCHAEOCYATHS AND SPONGES
1. Some aspects of their relationship
1-1. Morphology
1-2. Skeletal microstructures
1-3. Growth pattern
1-4. Possibility of choanocytes in archaeocyaths
1-5. Dissepiments and stereoplasma
1-6. Symbiotic bacteria
2. Conclusions
Lexical terminology
Bibliography

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