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Coprolite: A really crappy story by Lori Gesch

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Spiral Coprolite - Heteropolar (Macrospiral)

A heteropolar spiral coprolite is considered to be a macrospiral if the coils are present over 50% to 75% of the length of the coprolite. While generally attributed to sharks, these coprolites may have been produced by a number of fish with a spiral valve. These included, but are not limited to rays, skates, lungfish, and gars.


(Sulphur River Spiral)

(Spiral Fish Coprolites)
Russian Spoolet
(Spiral Fish Coprolite with Inclusions)

(Spiral Fish Coprolite in Siderite Nodule)
Kasia's Prize
(Spiral Fish Coprolite in Siderite Nodule)
Poo-fect Split
(Spiral Fish Coprolite in Siderite Nodule)
More Bohemian Crapsody
(Spiral Fish Coprolite in Matrix)

(Spiral Fish Coprolite)
Bohemian Crapsody - 1st Movement
(Spiral Fish Coprolite)
Prehistoric Poop Emoji?
(Spiral Fish Coprolite)

(Spiral Coprolite with Fish Inclusions)
Need A Bigger Boat!
(Large Spiral Fish Coprolite)

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Copyright ©2023, Gesch What

    • About the Author
    • Fecal Matters
    • Fossilized Fecal Samples
      • Crap Houses
      • Creature Feature
      • Garden Variety Poop
      • Im-POO-sters!
      • Microscopic Master-feces
      • Movement Medleys
      • Parei-Poolia!
      • Poo-haps?
      • Sphincter Sculptures
      • The Impressionists
    • Reviews
    • Media Kit
      • Questions & Answers
    • Buy the Book!