Artemis Fine Arts
' auction in Boulder, Colorado, presents
a meticulously curated selection of 286 lots
, bridging millions of years of natural and human history. Scheduled to begin live bidding on April 12, 2026, the event is headlined by extraordinary paleontological specimens, including a remarkably preserved fossilized Dinictis skull from the White River Formation and rare prehistoric crocodilian remains.
American Revolutionary War Tomahawk - Pennsylvania
Estimate: $8,000 - $12,000.
Massive Hohokam Buffware Jar - Sacaton Red-on Buff Type
. North America, southwest United States, middle Gila River valley, Hohokam, Sacaton Red-on-Buff type, ca. 950 to 1150 CE. A monumental Hohokam buff ware jar of Sacaton Red-on-buff type, its broad, low-slung body and sharply defined Gila shoulder presenting an expansive field for bold geometric expression. Estimate: $9,000 - $13,500.
Oligocene Mesohippus Bairdii Skull Fossil
. North America, Western United States, South Dakota, Pennington County, White River Series, Brule Formation, Oligocene, ca. 37 to 32 million years ago. A superb and nearly complete fossilized skull and jaws of a Mesohippus bairdii, an early three-toed horse that once roamed the Dakota region of North America millions of years ago. Estimate: $6,000 - $9,000.
Rare 17th C. European Hide & Painted Heraldic Chest
. Western Europe, ca. 17th century CE. An exceptional late 17th-century armorial/ceremonial chest, wooden body covered in hide and mounted with wrought-iron strap hinges, side ring handles, and corner reinforcements. The arched lid and front are bordered with rows of domed brass tacks forming the date "1683." Estimate: $5,000 - $8,000.
Moche Gold Nose Ornament w/ Architectural Design
. Pre-Columbian, North Coast Peru, Vicus / Moche, ca. 100 to 500 CE. A nose ornament with a high gold content, featuring stylized architectural forms, with small loops suspending spherical pellets along the lower edge, creating movement. Estimate: $4,000 - $6,000.
Fine Pair Navajo Wool Rugs Two Grey Hills Style
. Native American, Southwestern United States, Navajo (Dine), ca. mid to late 20th century. A pair of handwoven wool rugs in the Two Grey Hills regional style, the quality jumps out immediately. The drape, the tightness of the weave, and those natural Two Grey Hills tones all point to a very skilled hand. featuring natural earth-tone palettes with central diamond motifs and bordered designs. Estimate: $4,000 - $6,000.
17th C. Brass Repousse - "Minerva Introducing Painting"
. After Hans Jacob Bayr (German, 1574-1628). "Minerva Introducing Painting to the Circle of the Arts and Sciences - The Seven Liberal Arts" brass relief plaque, ca. 17th century CE. Unsigned. A richly detailed German brass relief plaque depicting Minerva introducing Painting to the circle of the Seven Liberal Arts, after a model by Hans Jacob Bayr (1574-1628), the composition unfolding within a finely cast palmette and beaded border with a deep, natural, dark patina. Estimate: $3,000 - $4,500.
Vibrant Large Triassic Petrified Wood Slab (Arizonan)
. North America, Southwestern United States, Arizona, Late Triassic, ca. 225 million years ago. A massive and gorgeous slab of fossilized or petrified tree trunk sliced crossways and highly polished on one of the planar faces to showcase the broad interior rings of the tree - beautiful and astoundingly colorful! Estimate: $2,500 - $3,500.
Massive Chinese Han Brick Tomb Tile, Zoomorph Motifs
. East Asia, China, Han Dynasty, ca. 216 BCE to 220 CE. A massive low-fired, hollow, box-shaped pottery tile from a brick tomb, likely made as a decorative architectural element for a wall or doorway. The long faces are impressed with repeating diamond bands framing a procession of sacred zoomorphic figures - phoenixes, tigers, and horses - stamped and incised across the surface. Estimate: $1,800 - $2,700.
Rare Mesoamerican Xochipala Pink Alabaster Bowl
. Pre-Columbian, Southwest Mexico, Xochipala region, Classic to Postclassic era, ca. 200 to 1400 CE. A rare semi-translucent gypsum (alabaster) bowl in a soft pale pink hue, its thin rounded walls and gently curved profile allowing light to diffuse through the stone when backlit. The luminous material and color suggest ceremonial or high-status use rather than utilitarian function. Estimate: $1,500 - $2,500.
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