-
Athyris concentrica,
pedicle valve Athyris concentrica,
brachial valve Athyris concentrica,
anterior view
Athyris concentrica,
posterior view
Athyris...
- Spirigerellinae.
Related genera include Cariothyris and
Planalvus along with
Athyris. The
following species within this
genus have been described: C. advena...
-
blumenbachii Diphyphyllum irregulare Amplexus laxatus Rhynchonella sp.
Athyris sp. Logan, W.E., Murray, A., Hunt, T.S., and Billings, E., 1863. Geology...
- Tri****ic, only to
decline again until becoming extinct in the
Early Jur****ic.
Athyris, Composita, and
Meristella are
representative genera.
Three suborders have...
- †Cleiothyridina
rectimarginata Cooper and
Grant 1976 †Cleiothyridina
royssii (syn.
Athyris royssii) †Cleiothyridina
saraiensis (Reed 1944) †Cleiothyridina semiconcava...
- †Asterotheca
oreopteridia †Asteroxylon †
Athyris †
Athyris fultonensis †
Athyris lamellosa †
Athyris parvirostra †
Athyris spiriferoides †Atrypa †Atrypa newsomensis...
-
chilensis =
Terebratella dorsata T.
cimex =
Cimicinella cimex T.
concentrica =
Athyris concentrica T.
cordata =
Joania cordata T.
cornuta =
Zeilleria cornuta...
-
fossils known as the
Pyrite Beds. •
Ambocoelia umbonata (Conrad, 1842) •
Athyris spiriferoides (Eaton, 1831) •
Atrypa reticularis (Linnaeus, 1758) • Emanuella...
- †Aglaocrinus †Amplexus †Anataphrus †Anomphalus †Archaeogastropod †Arctinurus †
Athyris †
Athyris fultonensis – or
unidentified comparable form †Atrypa †Atrypa reticularis...
-
species †
Athyris †
Athyris cedarensis †
Athyris cr****icardinalis †
Athyris fultonensis – or
unidentified comparable form †
Athyris simplex †
Athyris spiriferiodes...