Lumbricaria.
String of 3D coiled coprolite. At first thought to be worm cast, then fish poo. Now due to association thought to be the coprolites of cuttlefishes. Superb large example. From a very old German collection.
Jurassic, Uppermost Kimmeridgian, Tithonian, Solnhofener Plattenkalk.
Eichstatt, near Solnhofen, Bavaria, Germany.
Fossil : 5.5 x 4 cm.