Anchiceratops Brown, 1914
Anchiceratops Brown, 1914
(Bull. Amer. Mus., 33, 539. NcZ)
"near horned face" ("intermediate (frill) horned face")
ANG-ki-SER-a-tops (Gr. agkhi "near, close" + Gr. kerat-
(keras) "horn" + Gr. ops "face")
(m) named for its supposed close affinity to both Centrosaurus (which Brown called
Monoclonius) and Triceratops as "one more link in the morphological chain
by which the ceratopsian crest has been developed," with a squamosal "intermediate in length
between Monoclonius and Triceratops." According to Brown, "If we compare a series
of skulls of Monoclonius, Anchiceratops and Triceratops, representing
respectively the succeeding geological formations, Judith River, Edmonton and Lance,
the squamosals are to seen to lengthen in each succeeding type and the lateral fontanelles,
which were very large in Monoclonius, are much reduced in Anchiceratops,
and have entirely disappeared in Triceratops.
Thus we see a gradual backward extension of the squamosal with a lateral expansion
of the central part of the crest." Brown's analysis is contrary to the modern understanding
of ceratopsian evolution--Centrosaurus belongs to a different subfamily (Centrosaurinae),
and is not closely related to Anchiceratops or Triceratops,
which belong to the Chasmosaurinae.
Ceratopsia Ceratopidae Chasmosaurinae L. Cret. NA.
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