Bryozoa of Floridan Oculina reefs
Author
Judith L Winston
text
Zootaxa
2016
4071
1
1
81
journal article
10.11646/zootaxa.4071.1.1
8ffe5a88-06f7-44af-95aa-5fd49e0302c4
1175-5326
260490
D47C792F-E91D-40A6-ABB7-FA7810578562
Domopora floridana
Canu & Bassler, 1928
a
(
Fig. 42
;
Table 41
)
Domopora floridana
Canu & Bassler, 1928a: 164
, pl. 30, figs 5, 6.
FIGURE 41.
Microeciella floridana
(Canu & Bassler, 1928)
:
A,
small colony, showing gonozooid in upper left;
B,
another colony;
C,
close up of gonozooid and ooeciostome;
D,
zooids, showing distal tubular portions;
E,
growing margin of colony;
F,
close up of depressed pseudopores at margin between gonozooid and zooids. Scale bars: A, B, 1 mm; C, D, 0.5 mm; E, 0.2 mm; F, 0.1 mm.
FIGURE 42.
?
Domopora floridana
Canu & Bassler, 1928
:
A,
much-abraded colony in side view;
B;
upper surface of colony;
C,
sides of colony, showing two sizes of openings;
D,
close-up of zooidal interior showing pinhead spinules with stellate heads. Scale bars: A, 0.5 mm; B, 0.2 mm; C, 0.3 mm; D, 0.03 mm.
TABLE 41.
Measurements in mm of
Domopora floridana
Canu & Bassler, 1928
a.
|
Wz
|
Col D
|
Lz or c
|
Wz or c
|
| N |
6 |
6 |
6 |
6 |
| Mean |
0.095 |
0.063 |
0.086 |
0.068 |
| SD |
0.011 |
0.015 |
0.014 |
0.008 |
| Min |
0.081 |
0.036 |
0.072 |
0.054 |
| Max |
0.108 |
0.072 |
0.108 |
0.072 |
Material examined.
VMNH no. 70665.
Description.
Colony encrusting, forming circular mound, with flat to slightly sunken upper surface, with generally higher sides (
Fig. 42
A). Upper surface with polygonal cancellae (
Fig. 42
B); sides have zooid tubes interspersed with additional cancellae (
Fig. 42
C). Interior walls of zooids and cancellae with minute spinules in form of stalks with stellate heads (
Fig. 42
D).
Remarks.
Canu & Bassler (1928a) described this species from 30 fms in the Gulf of
Mexico
. They claimed to have found another Recent species in the
Philippines
and believed the genus to belong to a group that was abundant in the Cretaceous and Tertiary. Osburn (1940) included
Domopora floridana
in
Lichenopora
, but while it probably does not belong to the fossil genus, it does not really seem to be a lichenoporid either. Superficially the species resembles an encrusting foraminiferan, such as
Homotrema
, but the size of the zooid tubes and their internal ultrastructure with calcareous spinules are characteristically bryozoan. Maturo (1968) reported
Lichenopora floridana
[sic] from southeastern continental shelf collections in a checklist.
The specimens in the
Oculina
study were old and abraded and could be taken for senescent colonies of
Disporella
or
Patinella
, but no other lichenoporid colonies in any condition were found in the study. It seems to be a real entity, but further classification must await better specimens.
Distribution
. Florida and Gulf of
Mexico
continental shelf.