- abundance,
planktonic lifestyle, and well-traced
evolutionary trends,
graptoloids in
particular are
useful index fossils for the
Ordovician and Silurian...
-
Urbanek (1993) in a
paper concerning the end-Silurian
extinction of
graptoloids and is
derived from an
island in Gulliver’s Travels, Lilliput, inhabited...
-
planktic graptolite and is
presumably the
ancestor of all
later planktic graptoloids. Some
species identified as the
first planktid graptolite are: Rhabdinopora...
- the
order Graptoloidea. This
particular genus is the last
stage of the
graptoloid evolution before its
extinction in the
early Devonian. A characteristic...
- Hunsrück
Slate had a
radius of
about 25 cm (9.8 in). The
longest known graptoloid graptolite is
Stimulograptus halli at 1.45 m (4.8 ft). It was
found in...
-
Sollasina An
ophiocistioid echinoderm Pterobranchia Uninvestigated "
Graptoloids"
Uninvestigated Inani****a A
radiolarian Haplentactinia Parasecuicollacta...
- Urbanek, A. (1993). "Biotic
crises in the
history of
Upper Silurian graptoloids: a
palaeobiological model".
Historical Biology. 7 (1): 29–50. Bibcode:1993HBio...
-
received her PhD from the
University of
Cambridge in 1990 for a
doctorate on
Graptoloid Form and Function. She
received a BSc. from the
University of
Oxford in...
- by Li et al. (2018). A
study on the
fossil record of
early Paleozoic graptoloids and on the
factors influencing rates of
diversification within this group...
-
transitional between sessile (dendroid)
graptolites and free-floating
graptoloids.
Sessile forms, such as Didymograptus, Dictyonema, Webbyites, and rhabdopleurids...
