 |
Simon
Clabby 2006
Simon
Clabby 2006 |
 |
| |
|
|
|
 |
|
Bernissartia
Dollo, 1881
|
Pronounced
|
Burn-ISS-arr-tee-AH |
|
|
|
From
Bernissart (in Belgium) |
|
Classification
|
Crocodylomorpha
Bernissartiidae Dollo, 1883
Bernissartia
sp. indet. Buffetaut
and Ford, 1979
|
|
Stratigraphy
|
Wessex
Formation |
|
Lifestyle
|
This
crocodile would have had similar habits to modern piscivorous
crocodiles |
|
Locality
|
Between
Compton Grange and Hanover
Point. |
|
Description
of Material
|
Known
only from teeth, Bernissartia teeth are recognisable
by their low, blunt, rounded profile, although some have
an obtuse but somewhat pointed apex and resemble the posterior
teeth of many crocodiles. The rest, which are presumably
more posterior, have a completely rounded, semicircular
profile. Some of the larger teeth are hemispherical, and
in occlusal view their outline is regularly oval. others
are more elongated, or are laterally compressed. Some
are even kidney-shaped, with a fairly sharp conscriction
at the midpoint.
The teeth show a distinct ornamentation of the enamel.
On unworn crowns, a longitudinal ridge can be seen, from
which fine wrinkles radiate on the sides of the crown.
Nearer the base, the enamal becomes more smooth, and only
show faint growth rings.
As the tooth wore down, the enamel along the ridge would
wear down, producing a shallow, narrow groove cutting
into the dentine beneath, and eventually forming a flat
wear facet.
It
has been suggested that Bernissartia is the same
as Hylaeochampsa,
but until more is known no comparison can be made.
From
Buffetaut
and Ford 1979
|
Simon
Clabby 2006
|
|
| |
|
|
|
|
|
Goniopholis
Owen, 1841
|
Pronounced
|
GO-nee-OH-foe-liss |
|
|
|
From
Bernissart (in Belgium) |
|
Classification
|
Crocodylomorpha
Goniopholidae Cope 1875
Goniopholis
cressidens Owen, 1841
|
|
Stratigraphy
|
Wessex
Formation |
|
Lifestyle
|
This
crocodile would have had similar habits to modern piscivorous
crocodiles |
|
Locality
|
Unknown |
|
Description
of Material
|
Goniopholis
is best known from scutes and teeth. The scutes are
ornamented with deep pitting, and have an almost "waffle-like"
appearance.
Goniopholis
can be recognised as it has a slightly brevirostrine
skull with the lateral margins of the rostrum festooned
both vertically and laterally. There is a notch at the
suture between premaxilla and maxilla. There is an undivided
external naris positioned near the rostral tip of the
snout, and the nasals are excluded from the external
naris by the premaxillae and ending slightly caudal
to the naris. The orbits are smaller than the supratemporal
fenestrae. There is a short lacrimonasal suture, and
the ventral surface of the mandible is flat and sculptured
at the level of the mandibular symphysis.
|
Simon
Clabby 2008
|
|
| |
|
|
|
|
|
Hylaeochampsa
Owen,
1874
|
Pronounced
|
HIGH-lee-oh-CHAMP-sah |
|
|
|
From
Bernissart (in Belgium) |
|
Classification
|
Crocodylomorpha
Hylaeochampsidae
Williston 1925
Hylaeochampsa
vectiana Owen 1874
|
|
Stratigraphy
|
Vectis
Formation |
|
Lifestyle
|
This
crocodilian appears to have been a molluscivore, using
it's button-like teeth to crush the shells of bivalves
such as Unio. |
|
Locality
|
Unknown |
|
Description
of Material
|
A
eusuchian possessing the unique derived features of
an extensive ectopterygoid bordering extremely broad
posterior maxillary teeth and contacting the palatine
anteriorly, a flat surface on the occipital faces of
the quadrate and pterygoid, an unusually prominent process
on the occipital surface of the paroccipital process
medial to the cranioquadrate passage, a vertical posterior
wall to the supratemporal fossa, a relatively long skull
table with a narrow, elongate supratemporal fenestra,
a posterior process of the jugal that is twisted dorsomedially
around its longitudinal axis, a short distal portion
of the quadrate, and an extremely broad prefrontal pillar.
Uniquely possesses the combination of a preorbital constriction,
enlarged posterior maxillary teeth, and an apparently
short rostrum. Derived characters shared with some Eusuchia
(but not necessarily synapomorphic)-prominent boss on
ventral surface of quadrate (also in primitive alligatorids),
lower temporal bar strongly arched dorsally, posterior
ectopterygoid process absent (also in some crocodylids),
and palatines very narrow between suborbital fenestrae
(also in crocodylids).
It
has been suggested that Bernissartia
is the same as Hylaeochampsa, but until more
is known no comparison can be made.
From
Clark and
Norell 1992
|
Simon
Clabby 2006
|
|
| |
|
|
|
|
|
Oweniasuchus
Owen,
1841
|
Pronounced
|
Owe-ENN-ee-ah-SOO-kuss
|
|
|
|
Owen's
Crocodile |
|
Classification
|
Crocodylomorpha
Goniopholididae Cope 1875
Oweniasuchus
Woodward 1885
|
|
Stratigraphy
|
Wessex
Formation |
|
Lifestyle
|
This
crocodile would have had similar habits to modern piscivorous
crocodiles |
|
Locality
|
|
|
Description
of Material
|
|
Simon
Clabby 2006
|
|
| |
|
|
|
|
|
Pholidosaurus
Owen,
1841
|
Pronounced
|
Foe-LIE-doh-SAW-russ |
|
|
|
Horny-scaled
reptile |
|
Classification
|
Crocodylomorpha
Neosuchia Benton and Clark, 1988.
Pholidosaurus
meyeri (von Koken, 1887)
|
|
Stratigraphy
|
Wessex
Formation |
|
Lifestyle
|
|
|
Locality
|
Brook
bay |
|
Description
of Material
|
|
Simon
Clabby 2006
|
|
| |
|
|
|
|
|
Suchosaurus
Owen,
1841
This
genus has been removed due to the type material (teeth)
being reassigned to the spinosauroidea, and may be synonymous
with Baryonyx. However,
until anything is published, it's uncertain if the Isle
of Wight Suchosaurus is the same or just indet. crocodilian
material lumped within the genus
Simon
Clabby 2006
|
|
| |
|
|
|
|
|
Simon
Clabby 2008
Theriosuchus
Owen,
1841
|
Pronounced
|
Therr-ee-oh-soo-kuss |
|
|
|
Beast-crocodile |
|
Classification
|
Crocodylomorpha
Atoposauridae Gervais 1871
Theriosuchus
sp.
|
|
Stratigraphy
|
Wessex
Formation |
|
Lifestyle
|
This
crocodile would have had similar habits to modern piscivorous
crocodiles |
|
Locality
|
Unknown |
|
Description
of Material
|
Theriosuchus
scutes are less heavily sculptured than Goniopholis,
with only a few small circular pits, but have a prominent
midline keel.
|
Simon
Clabby 2008
|
|
| |
|
|
|
|
|
|
Pronounced
|
VECK-tiss-OO-kuss |
|
|
|
Vectis
Crocodile |
|
Classification
|
Crocodylomorpha
Goniopholididae Cope 1875
Vectisuchus
leptognathus Buffetaut and Hutt 1980
|
|
Stratigraphy
|
Wessex
Formation |
|
Lifestyle
|
This
crocodile would have had similar habits to modern
piscivorous crocodiles |
|
Locality
|
Barnes
High |
|
Description
of Material
|
Piscivorous
mesosuchian crocodilian of small size. Slender,
moderately elongate snout sharply demarcated from
the posterior part of the skull. Nasal bones reaching
premaxillae. Orbits large and rounded, facing forwards
and sidewards. Supratemporal openings about as large
as the orbits. Postorbital pillar somewhat displaced
inwards and sloping backwards. Well developed pterygoid
wings. Internal nares limited anteriorly by the
palatines, but situated mostly in the pterygoids.
Mandibular symphysis relatively long, with the splenials
taking part in it. Mandible slightly expanded anteriorly,
with third and fourth alveoli large and continuous.
Long retroarticular processes. Teeth pointed and
slender. Vertebrae amphicoelias. Cervical vertebrae
bearing well-defined hypapophyses. Dorsal and ventral
armour well developed. Dorsal scutes bearing an
anterolateral peg and two longitudinal ridges. Ventral
scutes hexagonal. Forelimbs long, with all segments
elongate and slender, especially the carpal bones.
|
Simon
Clabby 2006
|
|
| |
|
|
|
|
|
