Object ID:
1919.17.31
Collection:
Carr Natural History
Object Name:
Fossil
Dimensions:
H-0.5 W-2.4 L-2.9 cm
Kingdom:
Plantae (Plants)
Phylum:
Sphenophyta
Description:
Two leaf whorls preserved as impressions in a siderite nodule as a result of pressure.
Class:
Equisetopsida
Genus:
Annularia
VE Exhibit Label 1:
Two leaf whorls from the species Annularia sphenophylloides. An ancient plant from the Mazon Creek locality that resembles horsetails in appearance. This fossil is roughly 310 million years old.
Species:
sphenophylloides
Fossilization:
Carbonization
Period:
Carboniferous
Formation:
Carbondale
Site Name:
Mazon Creek, Illinois
Dimension Details:
Dimensions above for unlabeled peice.
Dimensions for piece labeled "44"
2.6L x 3.6W x 0.7H cm
Dimensions for piece labeled "44"
2.6L x 3.6W x 0.7H cm
Click to Enlarge
1047
1047a
1047
1047a