Table of Contents

Prehistoric World: Fossils

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• 
• Fossil
• 1919.17.7
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• Siderite nodule containing two plant specimens. The larger being Macroneuropteris scheuchzeri. The smaller lacks veination for adequate identification.... View Full Record
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• Fossil
• 1919.17.5
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• Identified in Ledger as Neuropteris anamola. After review of Wittry Text, identified as Macroneuropteris scheuchzeri. Preserved in siderite nodule.... View Full Record
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• Fossil
• 1919.17.22
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• Top down view of leaf whorl. Preserved by phycial compaction in a nodule of siderite.... View Full Record
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• Fossil
• 1919.17.31
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• Two leaf whorls preserved as impressions in a siderite nodule as a result of pressure.... View Full Record
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• Fossil
• 1919.17.21
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• Trifoliate fern preserved as a fossil impression. Resulting from physical compaction inside a siderite nodule.... View Full Record
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• Fossil
• 1919.2.65
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• Well preserved chain coral.... View Full Record
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• Fossil
• 1919.2.64
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• Honeycomb coral fossil.... View Full Record
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• Fossil
• 1961.3.28
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• Two solitary rugose (horn) corals.... View Full Record
• 
• Fossil
• 1961.3.1
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• Large specimen of colonial rugose (horn) coral.... View Full Record
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• Fossil
• 1961.3.6
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• 3 pieces of Rugose (horn) coral. All apear to have been broken off from rest of organism.... View Full Record
• 
• Fossil
• 1919.17.47
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• Solitary rugose (horn) coral. Tag attached to specimen identifies as Cyathoohykrois coral. This name is no longer valid. Species of genus cyathophyllum have been confirmed near Elkader, Iowa.... View Full Record
• 
• Fossil
• 1919.17.43
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• Polished stone comprised of a colony of rugose (horn) corals. Hexagonaria percarinata State Stone of Michigan. The specimen has been partially polished.... View Full Record
• 
• Fossil
• 2019.1.10
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• Singular specimen of horned ammonite. The Hell Creek is the only formation of appropriate age for the specimen in Custer County. However, it is a fluvial and flood plain deposit. Not a marine deposit. While it is possible this ammonite found it'... View Full Record
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• Fossil
• 1919.17.69
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• Ammonite, black, cut to expose interior.... View Full Record
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• Fossil
• 1919.2.66
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• Fragment of cephalopod. Preserved as internal mold, showing body segments. This species was capable of growing up to 12 feet in length... View Full Record
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• Fossil
• 1917.4.11
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• Singular belemnite guard.... View Full Record
• 
• Fossil
• 1922.6.16
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• Casts of three gastropods.... View Full Record
• 
• Fossil
• 1917.4.10
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• Assemblage of brachiopods and bryozoans preserved in pieces of Ordovician Shale.... View Full Record
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• Fossil
• 1919.17.74
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• Trilobite specimen containing partial cephalon and thorax. Majority of identifying features not present.... View Full Record
• 
• Fossil
• 1961.3.13
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• Trilobite specimen. Pygidium is not present. This specimen has been faked by glueing the trilobite to the surface of the rock. Glue is visible next to the cephalon. There is also a visible gap between the base of the trilobite and the rock.... View Full Record
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• Fossil
• 1919.17.96
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• Large slab of petrified redwood. Mostly intact label from Carr's Natural History Store.... View Full Record
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• Fossil
• 1932.10.22
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• Rectangular stone with imprint of a fish on its surface. ... View Full Record
• 
• Fossil
• 1922.6.10
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• Leucichthyops vagans. Two small impressions of scales preserved on rock. One scale impression still contains some replacement material. Scales appear grey in color.... View Full Record
• 
• Fossil
• 1961.3.30
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• Three brachiopods. Articulated.... View Full Record
• 
• Fossil
• 2017.44.18
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• Articulated section of crinoid stem. Appears to have been flattened slightly by compression forces.... View Full Record
• 
• Fossil
• 2019.12.1
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• Section of lower jaw, left side.... View Full Record
• 
• Fossil
• 1918.1.7
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• One cylindrical coral remvoed from matrix. Septa, tabulae and costae visible through magnification.... View Full Record
• 
• Fossil
• 1919.17.132
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• One trilobite cephalic shield in dark grey, shale matrix. The specimen has previously been glued to fix the cephalic shield on the left lateral and dorsal side.... View Full Record
• 
• Fossil
• 1919.17.135
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• Three trilobite specimens that include thorax and pygidium. The largest speciment is a mold, the second largest is a cast and the third is a possible body fossil. The specimens are in dark grey, shale matrix.... View Full Record
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• Fossil
• 1919.17.143
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• Four bivalve specimens. Each specimen is a well preserved valve removed from brown matrix. Teeth, hinge, umbo, radial ribs and growth lines, muscle scars, pallial line and ventral margin are visible in each specimen.... View Full Record
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• Fossil
• 1919.17.175
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• Fourteen specimens of sea snail shells in excellent condition. Very visible spires, body whorls sutures and ribs on each specimen. Originally identified as Certhium striatum but are now identified as Mesalia claibornensis.... View Full Record
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• Fossil
• 1919.17.178
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• Three well preserved brachiopods. Fully articulated without any fracturing, each specimen have visible hinge, ribs, sulcus and commissure.... View Full Record
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• Fossil
• 1919.17.179
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• Twenty-three gastropod specimens in excellent condition. Shell ornamentation visible. Body whorl and spires present, with little to no fragmentation or fracturing. No species designation but this may be Turritella incrassata.... View Full Record
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• Fossil
• 1919.17.197
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• One gastropod specimen removed from matrix. Body whorl, spire and suture intact, but umbilicus has been fractured.... View Full Record
• 
• Fossil
• 1919.17.213
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• Carbonization of leaf from Medullosales specimen in siderite concretion.... View Full Record
• 
• Fossil
• 1919.17.217
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• Seven brachiopod casts made entirely out of quartz crystals.... View Full Record
• 
• Fossil
• 1919.17.219
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• Three gastropod whorls that are fragments removed from matrix. All three are internal molds.... View Full Record
• 
• Fossil
• 1919.17.237
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• Five gastropods removed from matrix. They each have visible sutures, apex, spires and disc-shaped body whorls.... View Full Record
• 
• Fossil
• 1919.17.273
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• One well preserved brachiopod cast, removed from matrix, with well defined ribs, hinge, sulcus, umbo and commissure.... View Full Record
• 
• Fossil
• 1919.17.284
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• Ten sandstone casts of vascular plant seeds. All specimens have visible carpel ridges.... View Full Record
• 
• Fossil
• 1919.17.312
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• Single bivalve shell with well preserved hinge, teeth and muscle scars. Most other elements appear to have been eroded.... View Full Record
• 
• Fossil
• 1922.6.40
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• Single internal mold of an ammonite camera, that includes remnants of the septa and suture.... View Full Record
• 
• Fossil
• 1961.3.43
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• Eleven crinoid stems fully prepped from matrix. Stem segments are easily discernible.... View Full Record
• 
• Fossil
• 2020.1.2
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• Fragment of fossilized wood partially in matrix. Unknown origin and species.... View Full Record
• 
• Fossil
• 2020.1.3
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• Tabulate coral with well defined corallites and colony coral stem.... View Full Record
• 
• Fossil
• 2020.1.4
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• Two fragments of trilobites; partial cephalon and pygidium removed from matrix.... View Full Record
• 
• Fossil
• 2020.1.5
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• Carbonized oval-shaped leaf in sandstone matrix. Veins, midrib and lamina are visible and well preserved.... View Full Record
• 
• Fossil
• 2020.1.7
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• Single articulate brachiopod specimen removed from matrix. Vertical plate is exposed through eroded external shell. Fracture in commissure reveals crystal growth within shell.... View Full Record