- cephalon) of
Triarthrus has
opisthoparian sutures, and the
right and left free ch****s that they
define are yoked. The
cephalon in
Triarthrus is semicircular...
- Ordovician)
Eodalmanitina (Middle Ordovician)
Trinucleus (Middle Ordovician)
Triarthrus (Late Ordovician) Most
Early Silurian families constitute a
subgroup of...
- bryozoans, annelids, phyllocarids, bivalves, and echinoderms. The
trilobite Triarthrus eatoni comprises 85% of the
organisms sampled at the locality,
other notable...
-
Pyritized specimen of the
brachiopod Paraspirifer bownockeri Pyritized Triarthrus eatoni from
Whetstone Gulf
Formation Pyritized Furcaster paleozoicus from...
-
closely related to
Artiopoda in some analyses.
Restoration of the
trilobite Triarthrus eatoni Restoration of
Naraoia magna (Nektaspida) Life
restoration of Sidneyia...
- A
Triarthrus eatoni with
preserved appendages. From
upper New York,
United States...
- A
fossil specimen of the
trilobite Triarthrus eatoni from Beecher's Beds,
showing the site's
characteristic pyritic preservation style....
-
Temporal range: Cambrian–Recent PreꞒ Ꞓ O S D C P T J K Pg N
Fossil of
Triarthrus eatoni, a
trilobite Cherax wagenknechtae, a
crustacean mandibulate Scientific...
- =Triangullina)
Trianguraspis Triarthrella Triarthroides Triarthropsis Triarthrus (=Brongniartia)
Tricopelta Tricrepicephalus (=Paracrepicephalus) Trifonella...
-
Triarthrus eatoni, one of the last ptychopariids....
