Question
Discuss the morphology and geological history of ammonoids.
Answer :
Word Count : 478
Ammonoids are an extinct group of marine mollusks belonging to the class Cephalopoda and subclass Ammonoidea, closely related to modern squids, octopuses, and cuttlefish. Morphologically, ammonoids are characterized by their coiled, planispiral shells, although some forms exhibited loosely coiled or even uncoiled shells. The shell is typically divided internally into chambers called camerae, separated by thin walls known as septa. The septa are intricately folded, forming complex suture patterns where the septa meet the outer shell wall, which is _______ __________ ___ ____ ____ ________ ____ ______.
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Ammonoids are an extinct group of marine mollusks belonging to the class Cephalopoda and subclass Ammonoidea, closely related to modern squids, octopuses, and cuttlefish. Morphologically, ammonoids are characterized by their coiled, planispiral shells, although some forms exhibited loosely coiled or even uncoiled shells. The shell is typically divided internally into chambers called camerae, separated by thin walls known as septa. The septa are intricately folded, forming complex suture patterns where the septa meet the outer shell wall, which is _______ __________ ___ ____ ____ ________ ____ ______.
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