Fossil

Fossilized Shark Tooth

Fossil Chondrichthyes (various genera such as Carcharias or Odontaspis)

Fossil Plant Impression (Calamites)

Calamites sp. (Tracheophyta: Equisetopsida)

Gastropod Internal Mold (Steinkern)

Class Gastropoda fossil mold (Phylum Mollusca)

Fossilized Gastropod Shell

Class Gastropoda (Fossil)

Fossilized Bone Chunk (likely Dinosaur or Large Mammal)

Permineralized Fossil Bone

Petrified Coral (Agatized Coral)

Anthozoa (Agatized Fossil)

Bivalve Fossil (Clam/Mollusk)

Class: Bivalvia (Order: Veneroida), Calcium Carbonate (CaCO3)

Fossilized Rugose Coral

Order Rugosa (Calcium Carbonate - CaCO3)

Fossilized Bone Fragment

Permineralized Vertebrate Bone (Hydrox yapatite replaced by Silica or Calcite)

Fossilized Coral (Petoskey Stone or similar)

Hexagonaria percarinata (Fossilized Rugose Coral)

Sand Dollar Fossil

Echinoidea (Clypeasteroida)

Fossilized Shell in Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

Ammonite Fossil (Polished Half / Cleoniceras)

Ammonoidea (Subclass), often Cleoniceras genus; fossilized with Calcite (CaCO3) and Aragonite

Fossil Shark Tooth

Carcharodon sp. (likely Otodus or similar Lamniformes order)

Fossil Shell (Brachiopod or Mollusk)

Phylum Brachiopoda or Class Bivalvia (e.g., Mucrospirifer or similar genus)

Orthoceras Fossil

Orthoceras regulare (Class Cephalopoda, Order Orthocerida)

Ammonite Fossil

Ammonoidea (subclass)

Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

Rugose Coral Fossil (Horn Coral)

Order Rugosa (common genera include Zaphrentis or Heliophyllum)

Fossiliferous Limestone

Biogenic Calcium Carbonate (CaCO3)

Brachiopod Fossil

Phylum Brachiopoda (likely Order Rhynchonellida or Spiriferida)

Fossilized Horse Tooth

Equus ferus caballus (fossilized molar/premolar)

Fossilized Crinoid Stem in Matrix

Crinoid (Class: Crinoidea)

Fossilized Gryphaea (Devil's Toenail)

Gryphaea arcuata (Bivalvia: Gryphaeidae)

Chert Cobble with Crinoid Fossil

Silica (SiO2) with Crinoid ossicle

Fossilized Bone

Permineralized Vertebrate Fossil

Fossilized Shark Tooth (Dermal Denticle or worn tooth fragment)

Elasmobranchii (fossil remains)

Fossiliferous Limestone with Rugose Coral

Lithostrotionella (Limestone Matrix - CaCO3)

Petrified Wood

Silicified wood (Quartz/Chalcedony - SiO2)

Gastropod Fossil (Snail Steinkern)

Class Gastropoda fossil, composed of Calcium Carbonate (CaCO3)

Fossiliferous Kalkstein (Marl/Sandstone)

Fossiliferous calcarenite/siltstone

Bivalve Fossil (Internal Mold/Steinkern)

Class Bivalvia (Fossilized Mold)

Spinosaurus Tooth

Spinosaurus aegyptiacus (fossilized in Hydroxyapatite)

Knightia Fossil in Limestone

Knightia eocaena in micritic limestone

Orthoceras Fossil in Limestone

Orthoceras regulare

Crinoid Fossil in Chert

Siliceous limestone with Crinoidea fossil (SiO2)

Kambaba Jasper

Rhyolite (Volcanic rock) or Stromatolite (debated)

Chert with Crinoid Fossil Impression

Microcrystalline Quartz (SiO2) with Crinoidea fossil impression

Dinosaur Bone (Gembone)

Agatized Dinosaur Bone (Silicified Paleo-osteoid)

Ironstone Concretion

Ironstone (primarily Siderite or Limonite / Goethite, FeO(OH)·nH2O)

Fossilized Shark Tooth

Otodus sp. (approximate genus) / Hydroxyapatite fossil

Amber (Burmite)

Fossilized tree resin (Succinite variant)