Plant
Sigillaria
Seal tree
Sigillaria is the Carboniferous lycopsid tree with leaf scars arranged in vertical columns like rows of seals, found as bark impressions in coal-measure rocks and Mazon Creek concretions. It is less common than Lepidodendron and distinguished by the vertical ribbing. Bark slabs are inexpensive.
| Phylum | Tracheophyta |
|---|---|
| Class | Lycopodiopsida |
| Order | Lepidodendrales |
| Family | Sigillariaceae |
| Group | Plant |
| Rank (PBDB) | genus· Paleobiology Database |
| Author | Brongniart 1822· Paleobiology Database |
| Classification (PBDB) | Lycophyta › NO_CLASS_SPECIFIED › NO_ORDER_SPECIFIED › Sigillariaceae· Paleobiology Database |
| Range (PBDB) | 388–252 Ma· Paleobiology Database |
| PBDB occurrences | 132· Paleobiology Database |
Elsewhere
- GBIF: 6658244
- PBDB: 157272
- Wikidata: Q21233645
- PBDB taxon page
- Wikipedia: Sigillaria
- PBDB search: Sigillaria
Cite this article
Stratum Strata. "Sigillaria" (Taxon). Stratum Strata pack 2026.09, as of 2026-09-21. https://stratum.black/strata/taxa/sigillaria. Accessed 2026-09-21.
@misc{stratum-sigillaria,
title = {Sigillaria},
author = {{Stratum Strata}},
howpublished = {\url{https://stratum.black/strata/taxa/sigillaria}},
year = {2026},
note = {Taxon article, Stratum Strata pack 2026.09, as of 2026-09-21; sources: stratum, pbdb, wikidata, commons. Accessed 2026-09-21.}
} Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.