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its about fossils.
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Acropora(EOCENE--RECENT)
Arellia(Holocene)
1.
CLASS ANTHOZOA (SCLERACTINIA)
"Staghorn Coral" Ramose hermatypic colonie,coenosteum light weight, porous, generally
spinose or striate on surface, calyx has septainserted in just 2 cycles. NO COLUMELLA.
2.
CLASS SCHYPHOZOA
Living jellyfish, Look for mouth, tentacles,ectoderm, endoderm, mesoglea, four-pouchedenteron, oral side, aboral side, and four fold
radial symmetry.
Astrangia(MIDDLECRETACEOUS-RECENT)
Aulopora(ORDOVICIAN--PERMIAN)
3.
CLASS ANTHOZOA (SCLERACTINIA)
Corallum compound. Encrusting tomassive. no hermatypic. Plocoid (Corallites
have separate, elevated walls,connected/separated by narrow interveninglayer of coenosteum.) calyces nearly flat or
slightlyelevated; septa dentate; columella with
papillate texture.This is the only coral that lives in the sandy,
near-shorezone of the Northwest Gulf of Mexico. Why
is this adifficult environment for corals (three
reasons)?4.
CLASS ANTHOZOA (TABULATA)
Small, colonial corallum, consisting of anopen network of small, low, trumpet-shapedcorallites, encrusting on another organism,
usually a brachiopod.
Phylum Cnidaria (Adam)Study online at quizlet.com/_8fkon
CANINIA(CARBONIFEROUS--PERMIAN)
CLASS ANTHOZOA(MIDDLEORDOVICIAN--Recent)
Conularia (UPPERCAMBRIAN-PERMIAN)
5.
CLASS ANTHOZOA (RUGOSA)
"Dog tooth coral"Large solitary, conical to cylindrical,
straight or curved corallum, deep bowlshaped calyx w/ numerous septa andwide axial fossula (little hole) WELLDEVELOPED dissepimentarium withNUMEROUS dissepiments. Tabulae
complete. Thin epitheca6. NO medusoid generation. Digestive
cavity partitioned by radialmesenteries. Includes the hard corals,soft corals, and many kinds ofanemones.
7.
Steep sided, pyramidal,chitinphosphatic cone. Closed spacedtransverse ribs. Longitudinal groovealong midline of each face, cornersindented by longitudinal furrows
(longitudinal grooves)
DIPLORIA(UPPERCRETACEOUS--RECENT)
Endopachys(EOCENE--RECENT)
Favosites (UPPERORDOVICIAN--MIDDLEDEVONIAN)
8.
CLASS ANTHOZOA (SCLERACTINIA)
"Brain Coral"9.
CLASS ANTHOZOA (SCLERACTINIA)
Corallum small, solitary, compressed,wedge-shaped with
lateral wings and rounded keel-likebase; free-living ;
epitheca porous; calyx elongate withparallel margins,
septa arranged in branching pattern;columella narrow,elongate, spongy.
10.
CLASS ANTHOZOA (TABULATA)
"Honeycomb coral" Massive cerioidcorallum. Corallum thin walled,
polygonal corallites with mural poresand tabulae.
Gorgonia(HOLOCENE)
11.
CLASS ANTHOZOA (OCTOCORALLIA)
"Purple Sea Fan"
Horny axis (core); thick rind of close-packedspicules.
Colony fan-shaped, with branches located inone plane,
anastomosing or reticulate.The purple color is a pigment (organic
compound).Planar, anastomosing (Dividing and
merging again, like channels of a braidedstream) or reticulate, fan-like colony form
has evolved independently in many unrelatedtaxa,
providing many examples of convergentevolution. Can
you think of two other examples? [Hint: youwill see
them in the Ectoprocta and Graptolithinaexercises.]
What functional advantage is provided bythis colonial
growth form? Hint: Where do they live, andhow do they
feed?
Halysites(SILURIAN)
Heliophyllum(LOWER TOMIDDLEDEVONIAN)
12.
CLASS ANTHOZOA (TABULATA)
"Chain Coral"Long cylindrical corallites united along their
length to form interconnecting palisades(upright blades aligned linearly, like a picket
fence) No Mural pores.13.
CLASS ANTHOZOA (RUGOSA)
Large solitary horn coral. Prominentlywrinkled epitheca, septal grooves, broach
dissepimentarium, deep bowl shaped calyx,septa with yard arm carinae
Lithostrotionella(MISSISSIPPIAN)
Lophophyllidium(PENNSYLVANIAN-PERMIAN)
14.
CLASS ANTHOZOA (RUGOSA)
Corallum compound. large, massivecerioid (Colonial coral with completewalls btwn closely packed adjacentcorallites) Calyx polyogonal withshort septa. Broad axial fossula
surrounded by dissepimentarium.Sharply domed tabulae produce anaxial structure (elevated as volcano
like peak)15.
CLASS ANTHOZOA (RUGOSA)
Small, slender solitary horn coral.Long septa reaching axis and fusing
to form a complex, large, axialcolumella rising above the calyx (likea tongue) No dissepiments, epitheca
with septal grooves. Tabulaehorizontal, broadly domed.
Microcyclus(MIDDLEDEVONIAN)
Millepora(PALEOCENE--HOLOCENE)
Pachyphyllum(UPPERDEVONIAN)
16.
CLASS ANTHOZOA (RUGOSA)
Solitary, small, discoidal, button likecorallum. No tablua no axial structure.
17.
CLASS HYDROZOA
Branching or encrusting, calcareousskeletons. Dimorphic polyps of two kinds(gastrozooids and dactylozooids) Live intubular cavities of two sizes. Gastropores
and Dactylopores, both with tabulae,separated by finely porous coenosteum.
18.
CLASS ANTHOZOA (RUGOSA)
Corallum compound, large massiveastraeoid (corallites close packed w/o
intervening walls separating neighboringcorallites, continuous septa from corallite
calyx to the next) Broad marginaldissepimentarium. Within fossula domed
tabulae produce a small axial structure(elevated like a volcano peak)
Porites (EOCENE--RECENT)
Streptelasma(MIDDLEORDOVICIAN)
19.
CLASS ANTHOZOA (SCLERACTINIA)
Corralum compound (colonial), hermatypic (Reef or mound building. Corallites small with two cycles ofseptal insertion. Look for evidence for associated encrusting and boring animals.
20.
CLASS ANTHOZOA (RUGOSA)
Simple solitary horn coral. Numerous septa. No columella, no dissepiments, thick epitheca with septalgrooves. Tabluae is complete.
Phylum Cnidaria (Adam)