Hydreionocrinus mucrospinus
- Phylum: Echinodermata
- Class: Crinoidea
- Order: Cladida
- Family: Hydreionocrinidae
- Genus: Hydreionocrinus
- Species: Hydreionocrinus mucrospinus
Geological Range
Desmoinesian; Extinct.
Paleogeographic Distribution
Texas to Colorado.
Stratigraphic Occurrences
- Desmoinesian
- Mineral Wells Formation (TX)
