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The orthoconic adult portions are characterized by a shallow hyponomic sinus as in Ancistroceras indicating a more passive life-style , or a complex aperture with lappets as in Litoceras Derivation and evolution The earliest known lituitids are Ancistroceras and Holmiceras which made their first appearances in the latter part of the Early Ordovician well before Rhynchorthoceras .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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