Graptolite
Graptolithina
Paleobiology
Graptolithina
Chenendopora fungiformis
Aphrocallistes
Plinthosella resonans
Actinocoella maedrima
Dibunophyllum valeriae
Cyathophyllum ceratites
Halysites catenularia
Plantae
Lithostrotionella americana
Heliophyllum halli