Genus
Deefgella Schallreuter, 1981
Selection of related publications
Melnikova, L. M., Mirantsev, G. V., Terentiev, S. S., Anekeeva, G. A. 2022. Ostracods of the Gryazno Formation (Upper Ordovician, Sandbian Stage and Idavere Regional Stage) in the West of Leningrad Region.  Paleontological Journal   56,   5,   510-525. DOI:10.1134/S0031030122050082
Meidla, T. 1996. Late Ordovician Ostracodes of Estonia. Fossilia Baltica 2. pp. 1-222.  Tartu University Press. 
Schallreuter, R. 1984. Geschiebe-Ostrakoden I.  Neues Jahrbuch für Geologie und Paläontologie. Abhandlungen   169,   1,   1-40.
Schallreuter, R. 1981. Ordovician ostracodes from Baltoscandia.  GFF   103,   1,   61-71. DOI:10.1080/11035898109455206
List of species
1. Deefgella dajsiveteri Schallreuter, 1981 | Upper Ordovician
2. Deefgella semikolon Schallreuter, 1984 | Pirgu Stage
3. Deefgella? bella Melnikova, 2022 | Idavere Substage
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Arthropoda | 
| Subphylum | Crustacea | 
| Superclass | Oligostraca | 
| Class | Ostracoda | 
| Subclass | Podocopa | 
| Order | Palaeocopida | 
| Suborder | Beyrichicopina | 
| Superfamily | Tetradelloidea | 
| Family | Tetradellidae | 
| Subfamily | Perspicillinae | 
| Genus | Deefgella | 
| Species | dajsiveteri | 
| semikolon | |
| Deefgella? bella | |
| Genus | Naevhithis | 
| Pelecybolbina | |
| Pentagona | |
| Perspicillum | |
| Sigmobolbina |