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3 Specimen Results
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Individual/Organization:
Sternberg, G.F.
Genus:
Alethopteris
FHSM PB-266
Alethopteris serli
(White)
Formation:
Mazon Creek
Period(Early):
Pennsylvanian
FHSM PB-271
Alethopteris serli
(White)
Formation:
Mazon Creek
Period(Early):
Pennsylvanian
FHSM PB-276
Alethopteris serli
(White)
Formation:
Mazon Creek
Period(Early):
Pennsylvanian
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Phylum
Pteridophyta (3)
Order
Trigonocarpales (3)
Family
Alethopteridaceae (3)
Period
Pennsylvanian (3)
Formation
Mazon Creek (3)
Country
United States of America (3)
State/Province
Illinois (3)
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Grundy (3)