Arkell.1956.Jurassic..

43§ INDO-CHINA AND INDONESIA
in a red-weathering whitish limestone rich in mjprofossils, and occasionally
shale, and at Bara Bay in water-laid volcanic tuff with small lapillae
(Sasifu Beds). From the Mefa Beds Boehm (1908) obtained Calliphylloceras
malayanum (Boehm) and a suite of Perisphinctids of which he named
and figured only one species, P. (Kranaosphinctes) burui Boehm, remarking
that the species were different from those at Wai Galo. From these and
the absence of Mayaitids he inferred that the beds were not quite the same
age as those at Wai Galo and probably somewhat younger (Boehm, 1908,
p. 298). Later collections made by Deninger in the same and a number of
new localities in Buru were described by Hummel (1923), who unfortunately
was inexperienced in ammonites (and the Rules of Nomenclature).
His lengthy discussions and graphs are shown by his photographs to be
worthless, for they make it evident that he considered conspecific forms
which would now be placed in different subgenera (different genera by
Buckman and Spath). His pi. ix, fig. 5, shows a small form with lappets,
probably more closely related to Dichotomosphinctes rotoides than to
Kranaosphinctes burui; and his fig. 7 is a distinctly late Dichotomosphinctes
or Discosphinctes. This and the Taramelliceras cf. flexuosum (Miinster)
(Hummel, pi. xi, fig. 8) bear out Boehm's inference of a somewhat later
date than the Wai Galo assemblage—though still in the Plicatilis Zone.
Hummel also figures some typical European pelecypods which might
have come from the Upper Corallian Beds of England: the Inocerami
are absent. He also records most of the Wai Galo Phylloceratids and
some others, Ptychophylloceras insulare (Waagen), Holcophylloceras
mediterraneum (Neum.) and a Euaspidoceras.
Upper Oxfordian Perisphinctids occur also on Timor (Boehm, 1908,
p. 332), and a Taramelliceras of this age has been figured from a mudvolcano
on Rotti (Krumbeck, 1922, p. 204, pi. xviii, fig. 7).
UPPER CALLOVIAN
As previously pointed out (Arkell, 1951, Mon. Engl. Bathonian Am.,
p. 59), some of the specimens from the Sula Islands figured by Boehm
(1912) under Oppelia fusca represent Upper Callovian Hecticoceratinae:
pi. xxxiv, fig. 2, is a Putealiceras, and figs. 3, 4 are Sublunuloceras, probably
of about Athleta Zone date.
MIDDLE AND LOWER CALLOVIAN
At Keeuw and several other localities on Taliabu, Sula Islands, streambeds
have yielded a wonderful assemblage of Macrocephalitids of subgenera
(or genera) familiar in Cutch and in Europe. A wide selection
was figured by Boehm (1912) all under the same specific name Macrocephalites
keeuwensis Boehm, of which Spath (1928, Cutch, p. 205)
selected Boehm's pi. xxxvi, fig. 3 as lectotype. This is a Dolikephalites
very close to the English Upper Cornbrash species M. (D.) typicus Blake
(synonym M. (D.) dolius Buckman) which has also been figured from
the Caucasus (see p. 361). The following other new names and
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