Amber-encased Tadpole or Small Vertebrate
Anuran indet. cf. tadpole or small amphibian larva • Body fossil, vertebrate amber inclusion
Geological Period
Cretaceous (likely mid-Cretaceous)
Estimated Age
99 million years old ( Cenomanian-Turonian boundary)
Preservation Type
Three-dimensional soft-tissue preservation via amber inclusion (fossilized tree resin)
Condition Assessment
Good condition for an amber inclusion. The specimen is entirely encapsulated within a polished cabochon, protecting the organic remains from oxidation, though visibility is somewhat limited by the optical properties and curvature of the resin.
Taxonomic Classification
Phylum: Chordata, Subphylum: Vertebrata, Class: Amphibia, Order: Anura (potentially a tadpole or small larval amphibian)
Morphological Description
The specimen exhibits a rounded, bulbous head region tapering smoothly into an elongated, laterally compressed tail structure typical of amphibian larvae. Surface details are somewhat silhouetted due to the amber's opacity and curvature, but the overall outline clearly shows vertebrate larval anatomy.
Rock Matrix
Polished yellow-to-amber-colored fossilized tree resin (amber cabochon)
Formation & Location
Hukawng Valley, Kachin State, Myanmar (Burmese amber / Noije Bum Formation)
Size & Dimensions
The amber cabochon is approximately 1.5 to 2 cm in length; the embedded inclusion is roughly 8 to 10 mm long, consistent with small larval stages of Cretaceous amphibians.
Value & Rarity
Estimated Market Value
$500 - $1,500 USD
Auction Estimate
$400 - $1,200 USD
Rarity Assessment
Very Rare. While amber from Myanmar is famous for insect inclusions, vertebrate remains—especially larval amphibians—represent a tiny fraction of total finds.
Scientific Significance
Vertebrate inclusions in amber, particularly soft-bodied larval amphibians like tadpoles, are exceptionally rare and provide critical direct evidence of Mesozoic micro-ecosystems, reproductive strategies, and early amphibian development.
Preparation Recommendations
Keep away from direct sunlight, UV sources, and extreme heat to prevent polymer degradation and crazing of the amber. Store in a stable, climate-controlled environment with low humidity.
Notable Features
The presence of a complete or nearly complete vertebrate larval stage (likely an anuran tadpole) perfectly suspended and preserved in golden tree resin, offering a rare snapshot of ancient pond or forest-floor freshwater margins.