Praecardium
Praecardium
Eukaryota | Animalia | Mollusca | Bivalvia | Cryptodonta | Nepiomorphia | Praecardiida | Praecardiina | Praecardioidea | Praecardiidae | Praecardium
COL:CS5HF | COL:N | COL:M2L | COL:7NF3C | COL:CRWDW | COL:CSJZB | COL:CSXG3 | COL:CTLVP | COL:7NW7N | COL:7NWX6 | COL:BC5JS
(Chatton, 1925) Whittaker & Margulis, 1978 |  |  | Linnaeus, 1758 | Neumayr, 1884 | Kríž, 2007 | Newell, 1965 | Newell, 1965 | R. Hoernes, 1884 | R. Hoernes, 1884 | Barrande, 1881