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Trigonocarpus attached to Alethopteris frond.jpg

hitekmastr
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This Trigonocarpus fossil from St. Clair is an exceedingly rare pairing that includes the compression (fossil) and impression (cast) in matching pieces.  If you look very closely you can see there is a short stem connecting the seed to the Alethopteris stem.  Finding these connected is VERY rare.  Also, if you look closely you can see some sort of structure revealed in the very center of the seed.


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From the album

Carboniferous Plant Fossils in My Collection

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Photo Information for Trigonocarpus attached to Alethopteris frond.jpg

Taken with samsung SM-G935V

  • 4.2 mm
  • 1/60
  • f f/1.7
  • ISO 100
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This seed was found on a visit to St. Clair before the site was closed to the public and on this visit my wife and I were looking specifically for fossil seeds.

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