Macroneuropteris scheuchzeri; a fossil leaf from Mazon Creek, Illinois, USA - ROM2004_982_22

Seed fern fossil, Macroneuropteris sp., collected 1985
ROM2004_982_22

Macroneuropteris scheuchzeri; a fossil leaf from Mazon Creek, Illinois, USA

Dimensions:
Leaf: 11 (L) x 3 (W) cm
Taxonomy
    • Attributes
    • Objects
    • Taxonomy
    • KingdomPlantae
    • PhylumPteridospermophyta
    • GenusMacroneuropteris
    • SpecificEpithetscheuchzeri
Object number: ROMIP47560-38069
Not on view
DescriptionThe Mazon Creek area in central Illinois has long been a popular spot for fossil collectors. Coal mining from the mid-1860s until the mid-1970s has produced vast mounds of waste rock, which yield spectacular fossils. The fossils are preserved in ironstone nodules, and include a variety of plants, including leaves, seeds, bark, roots, and wood. This leaf shows evidence of being chewed by an insect. The Mazon Creek area is one of the few places in the world where the remains of soft-bodied creatures are preserved—insects, spiders, millipedes, and other terrestrial forms, as well as worms, sea cucumbers, jellyfish, and larval fish with their yolk sacs. The sediment was deposited in a vast delta system 300 million years ago.
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