<http://caligraph.org/ontology/Cenozoic_plant>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Prehistoric_plant> .
<http://caligraph.org/ontology/Paleozoic_plant>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Prehistoric_plant> .
<http://caligraph.org/ontology/Prehistoric_plant>	<http://www.w3.org/2000/01/rdf-schema#label>	"Prehistoric plant" .
<http://caligraph.org/ontology/Prehistoric_plant>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Extinct_plant> .
<http://caligraph.org/ontology/Prehistoric_angiosperm>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Prehistoric_plant> .
<http://caligraph.org/ontology/Prehistoric_tree>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Prehistoric_plant> .
<http://caligraph.org/ontology/Prehistoric_plant_of_North_America>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Prehistoric_plant> .
<http://caligraph.org/ontology/Mesozoic_plant>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Prehistoric_plant> .
<http://caligraph.org/ontology/Prehistoric_plant>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Prehistoric_plant>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Prehistoric_plants_by_geological_period> .
<http://caligraph.org/ontology/Prehistoric_plant_of_South_America>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Prehistoric_plant> .
<http://caligraph.org/ontology/Prehistoric_plant>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Prehistoric_plants> .