- (1815–1879).
Emmrichops planicephala is
known from the
Ordovician of
Wales (
Hustedograptus teretiusculus biozone,
Llanfawr Mudstones Formation,
Builth inlier,...
- 1987 †Ceramograptus Hudson, 1915 †Geniculograptus Mitc****, 1987 †
Hustedograptus Mitc****, 1987 †Orthograptus Lapworth, 1873 †Ort****tiograptus Mu, 1977...
-
Ordovician of
northern Kazakhstan (late Llanvirn?), and the
United Kingdom (
Hustedograptus teretiusculus Biozone of the
Llanfawn Mudstone Formation,
central Wales)...
-
simplex – or
unidentified comparable form †Hormotoma †Howellella †
Hustedograptus †
Hustedograptus teretiusculus – or
unidentified comparable form †Hyboaspis †Hyolit****us...
-
Geniculograptus Diplograptidae,
Subfamily Orthograptinae Mitc****, 1987
Hustedograptus Diplograptidae,
Subfamily Orthograptinae Mitc****, 1987 Orthograptus...
-
species †Homalophyllites †Homalophyllites subcr****us †Hustedia †
Hustedograptus †
Hustedograptus teretiusculus †Hyolithes †Hyolithes
ornatellus †Hyolithes prolixus...
-
related form †Hustedia
remota – or
unidentified related form †
Hustedograptus †
Hustedograptus teretiusculus †Hypagnostus †Hypomphalocirrus †Hypomphalocirrus...
