Australasian Fossils: A Students' Manual of PalaeontologyChapman, Frederick
Science
Australasian Fossils: A Students' Manual of Palaeontology
Chapman, Frederick
Paleontology -- Australia
A--Rhynchonella variabilis Schloth. sp. Jurassic. W. Australia
B--Terebratella davidsoni, Moore. L. Cretaceous. Queensland
C--Lingula subovalis, Davidson. L. Cretaceous. S. Australia
D--Rhynchonella croydonensis, Eth. fil. Up. Cretaceous. Queensland
]
The marine Jurassic beds of W. Australia, as at Shark Bay and Greenough
River, contain certain _Rhynchonellae_ allied to European species, as _R.
variabilis_ (Fig. 88 A), and _R._ cf. _solitaria_.
=Lower Cretaceous Brachiopods.--=
The Lower Cretaceous or Rolling Downs Formation of Queensland has
yielded a fair number of Brachiopods, principally from Wollumbilla,--as
_Terebratella davidsoni_ (Fig. 88 B), (?) _Argiope wollumbillensis_, (?)
_A. punctata_, _Rhynchonella rustica_, _R. solitaria_, _Discina apicalis_
and _Lingula subovalis_. From beds of similar age in Central South
Australia and the Lake Eyre Basin _Lingula subovalis_ (Fig. 88 C), and
_Rhynchonella eyrei_ have been recorded; the latter has been compared with
a species (_R. walkeri_) from the Middle Neocomian of Tealby in Yorkshire.
=Upper Cretaceous Brachiopod.--=
A solitary species of the Brachiopoda occurs in the Upper Cretaceous of
Australia, namely, _Rhynchonella croydonensis_ (Fig. 88 D) of the Desert
Sandstone of the Croydon Gold-fields and Mount Angas, Queensland.
=Cainozoic Brachiopods.--=
The Brachiopoda of the Cainozoic or Tertiary strata of Australia
and New Zealand are well represented by the genera _Terebratula_,
_Magellania_, _Terebratulina_, _Terebratella_, _Magasella_ and
_Acanthothyris_. In the Balcombian or Oligocene of southern Australia
occur the following:--_Terebratula tateana_, _Magellania corioensis_,
_M. garibaldiana_ and _Magasella compta_ (Figs. 89 A, D); and most of
these range into the next stage, the Janjukian, whilst some extend even
to the Kalimnan. _Terebratulina suessi_, Hutton sp. (= _T. scoulari_,
Tate) ranges through the Balcombian and Janjukian, but is most typical
of the Janjukian beds in Victoria: it also occurs in the Oamaru Series
of New Zealand (= Janjukian). _Acanthothyris squamosa_ (Fig. 89 F) is
typical of the Janjukian of southern Australia, and it occurs also in
the Pareora beds of the Broken River, New Zealand. The latter are green,
sandy, fossiliferous strata immediately succeeding the Oamaru stone of the
Hutchinson Quarry beds. _A. squamosa_ is said to be still living south of
Kerguelen Island. _Magellania insolita_ is a Victorian species which is
also found in the Oamaru Series of New Zealand.
[Illustration: =Fig. 89--CAINOZOIC BRACHIOPODS.=
A--Terebratula tateana, T. Woods. Cainozoic. Victoria
B--Magellania corioensis, McCoy, sp. Cainozoic. Victoria
C--Magellania garibaldiana, Dav. sp. Cainozoic. Victoria
D--Magasella compta, Sow. sp. Cainozoic. Victoria
E--Terebratulina catinuliformis, Tate. Cainozoic. S. Australia
F--Acanthothyris squamosa, Hutton sp. Cainozoic. Tasmania
]
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