Object ID:
1919.17.22
Collection:
Carr Natural History
Object Name:
Fossil
Dimensions:
H-2.7 W-9.8 L-7.4 cm
Kingdom:
Plantae (Plants)
Phylum:
Sphenophyta
Description:
Top down view of leaf whorl. Preserved by phycial compaction in a nodule of siderite.
Class:
Equisetopsida
Genus:
Annularia
VE Exhibit Label 1:
Solitary leaf whorl from the species Annularia stellata. An ancient plant from the Mazon Creek locality that resembles horsetails in appearance. This fossil is roughly 310 million years old.
Species:
stellata
Fossilization:
Carbonization
Period:
Carboniferous
Formation:
Carbondale
Site Name:
Mazon Creek, Illinois
Dimension Details:
Dimensions above are for larger section.
Dimensions for piece labeled "42": 8.3 x 6 x 1.7 cm
Dimensions for piece labeled "42": 8.3 x 6 x 1.7 cm
Click to Enlarge
1031
1031a
1031
1031a