Secotium

Secotium is a genus of fossilized conifer cones, notable for their unique internal structure. These fossils are found in various geological formations, particularly from the Mesozoic Era. The name "Secotium" is derived from the Latin word "secare," meaning to cut, referring to the distinct segmented appearance of the cone's interior when cross-sectioned.

The defining characteristic of Secotium is its ovuliferous scales, which are fused to a central axis and form chambers or locules. Each locule typically contains a single seed. This arrangement differs significantly from modern conifers, where ovuliferous scales are usually free or only partially fused. The fossil record of Secotium provides insights into the diversity of conifer reproductive structures during prehistoric times and helps paleontologists understand conifer evolution.

Specimens of Secotium have been discovered across different continents, indicating a widespread distribution of these ancient plants. The preservation quality of Secotium fossils can vary, but well-preserved examples offer detailed views of the cone's anatomy, allowing for detailed comparisons with extant and extinct conifer groups. Studying Secotium contributes to our broader understanding of ancient floras and the paleoecology of the environments in which they lived.