Figure 3 from Extant... www.semanticscholar.org

Chinese Register of Marine... www.marinespecies.org

Extant Crinoidea... www.semanticscholar.org

Extant Crinoidea... www.semanticscholar.org

Extant Crinoidea... www.semanticscholar.org

Porphyrocrinus... www.semanticscholar.org

Figure 6 from A new genus... www.semanticscholar.org

Image from page 4 of... www.flickr.com

Figure 7 from A new genus... www.semanticscholar.org

Figure 22 from... www.semanticscholar.org

Figure 5 from A new genus... www.semanticscholar.org

Bulletin of the British... www.alamy.com

The Crinoid Fauna... bioone.org

Figure 6 from A new genus... www.semanticscholar.org

Bulletin - United States... repository.si.edu

The Crinoid Fauna... bioone.org

PDF) The Crinoid Fauna... www.researchgate.net

Extant Crinoidea... www.semanticscholar.org

The Crinoid Fauna... bioone.org

Bulletin of the British... www.alamy.com