Dicerocardiidae
| Dicerocardiidae | ||||||||||||
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Fossil of Dicerocardium jani |
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| Temporal occurrence | ||||||||||||
| Upper Triassic to Upper Cretaceous | ||||||||||||
| approx. 422 to 161 million years | ||||||||||||
| Locations | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Dicerocardiidae | ||||||||||||
| Kutassy , 1934 |
The Dicerocardiidae are an extinct family of the order Rudists within the palaeoheterodonten mussels (Bivalvia). The oldest forms were found in Upper Triassic deposits. They died out in the Upper Cretaceous .
features
The case is medium to large in size and almost equally hinged. The vertebra is well developed and bent forward. The lock is designed as a lock plate with two cardinal teeth on both flaps (one tooth can also be reduced). The pallial line is full-margined, the sphincter impressions are only weakly developed. The surface is smooth or has rough strips of growth.
Systematics
There are currently around 10 genera belonging to the Dicerocardiidae family.
- Dicerocardium Stoppani, 1865
- Agelasina Riedel, 1932
- Ambocardia Beringer, 1949
- Cornucardia Koken, 1913
- Megalocardia Beringer, 1949
- Physocardia Woehrmann, 1894
- Platycardia Beringer, 1949
- Pseudisocardia Douvillé, 1913
- Rostrocardia Freneix, 1972
- Carinocardia Termier & Verriez, 1974
The compilation was based on the Treatise on Invertebrate Paleontology with additions from the Zoological Record .
literature
- LR Cox et al .: Treatise on Invertebrate Paleontology Part N Mollusca 6 Bivalvia (vol. 2 of 3). N491-N951, The University of Kansas & Geological Society of America, Boulder, Colorado, 1969.
- Michael Amler, Rudolf Fischer & Nicole Rogalla: Mussels . Haeckel library, volume 5. Enke Verlag, Stuttgart 2000 ISBN 3-13-118391-8 .