| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. Brooks/Cole, Thomson Learning learning, Inc. 990 p. | 2004 | Palaeocomatella difficilis | --> |
| 68823 | Castro, P. and M.E. Huber 2005 Marine biology. 5th ed. 452 p. ; col. ill. Boston, McGraw-Hill. | 2005 | Palaeocomatella difficilis | --> |
| 100368 | Messing, C.G. 2007 The Crinoid Fauna (Echinodermata: Crinoidea) of Palau. Pacific Science 61(1):91-111. | 2007 | Palaeocomatella difficilis | --> |
| 102268 | OBIS 2015 Palaeocomatella difficilis (Carpenter, 1888). OBIS Search Interface. http://www.iobis.org/mapper/ [Accessed 6/5/2015]. | 2015 | Palaeocomatella difficilis | --> |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Palaeocomatella difficilis | --> |