different between crossopterygi and dipnoi
Answers
Difference # Crossopterygii:
1. Maxilla absent, (except in some fossil forms); pre-maxilla present.
2. Palatoquadrate not fused to cranium.
3. Teeth not fused.
4. Two dorsal fins present.
5. Paired fins-uniserial lobe-fins.
6. Cloaca absent.
Example – Latemeria chalumnae.
Difference # Dipnoi:
1. Both maxilla and pre-maxilla absent.
2. Palatoquadrate fused to cranium (Autostylic jaw suspension).
3. Teeth fused to form crushing tooth plates (Dental plates).
4. A single dorsal fin continues with anal and caudal in recent forms.
5. Paired fins-biserial lobe-fins.
6. Cloaca present.
Example – Neoceratodus, Lepidosiren and Protupterus.
Explanation:
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Difference between Crossopterygii and Dipnoi | Fish | Fisheries
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Difference # Crossopterygii:
1. Maxilla absent, (except in some fossil forms); pre-maxilla present.
2. Palatoquadrate not fused to cranium.
3. Teeth not fused.
4. Two dorsal fins present.
5. Paired fins-uniserial lobe-fins.
6. Cloaca absent.
Example – Latemeria chalumnae.
Difference # Dipnoi:
1. Both maxilla and pre-maxilla absent.
2. Palatoquadrate fused to cranium (Autostylic jaw suspension).
3. Teeth fused to form crushing tooth plates (Dental plates).