Tullimonstrum gregarium, informally known as Tully Monster, is an extinct species of soft-bodied bilaterian that lived in shallow tropical coastal waters of muddy estuaries during the Pennsylvanian geological period, about 300 million years ago. A single fossil species of tullimonstrum is known. Its classification is controversial and many have previously compared it with primitive forms of molluscs, arthropods, worms and vertebrates.
4 pieces unpainted and unmounted
This model is based on the last available publication that identifies it as a basal vertebrate (phylum Chordata).It was carved by hand and reproduced in resin in a scale 1:1.
Resin model of Tullimonstrum gregarium organism Mazon Creek fossil beds
Material: full resin in 4 pieces not mounted and unpainted
Scale: 1:1
Design: Di Silvestro Gianpaolo and KUO, CHIEN-HUNG
Scientific references: McCoy, Victoria E .; Saupe, Erin E .; Lamsdell, James C .; et al. (April 28, 2016). "The 'Tully monster' is a vertebrate". Nature. 532 (7600): 496–499. doi: 10.1038/nature16992. PMID 26982721.McCoy, VE, Saupe, EE, Lamsdell, JC, Tarhan, LG, McMahon, S., Lidgard, S.,… Briggs, DEG (2016). The “Tully monster” is a vertebrate. Nature, 532, 496-499. https://doi.org/10.1038/natur e16992
McCoy VE, Wiemann J, Lamsdell JC, et al. Chemical signatures of soft tissues distinguish between vertebrates and invertebrates from the Carboniferous Mazon Creek Lagerstätte of Illinois. Geobiology. 2020; 00: 1–6.https: //doi.org/10.1111/gbi.12397
