Message 2003-07-0007: Allosaurus whitei Pickering 1995, a revised online diagnosis, 13 July 2003

Sat, 12 Jul 2003 09:51:07 -0400 (EDT)

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Date: Sat, 12 Jul 2003 09:51:07 -0400 (EDT)
From: StephanPickering@cs.com
To: paleo_bio_dinosaur_ontology@yahoogroups.com
Cc: dinosaurs@yahoogroups.com, info@dinodata.net, theropod_dinosaurs@yahoogroups.com, htomsirveaux@mybluelight.com, Danvarner@aol.com, PhyloCode@ouvaxa.cats.ohiou.edu
Subject: Allosaurus whitei Pickering 1995, a revised online diagnosis, 13 July 2003

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Avetheropoda Paul 1988
Carnosauria von Huene 1920
Allosauroidea Pneumatic excavation of ascending ramus of maxilla; narial 
prominences comprised of paired ridges along lateral edges of nasals; lacrimal 
recess, single opening present; postorbital prominences present; quadrate 
articultion projects well ventral of ventral surface of maxilla; horizontal shelf on 
lateral surface of surangular, rostroventral to mandibule condyle, prominent 
and pendant; caudal dorsal neural spines oriented cranially; pubic boot 
triangular (apex caudal) in ventral view, acute angle between shaft and caudal 
portion of boot (Holtz 2000)
Piatnitzkysaurus Bonaparte 1979
Acrocanthosaurus Langston 1947 nomen manuscriptum
Acrocanthosaurus Stovall & Langston 1950
Giganotosaurus Coria 1994 nomen nudum
Giganotosaurus Coria & Salgado 1995
Carcharodontosaurus Stromer 1931
Sinraptoridae Yangchuanosaurus, Sinraptor, Szechuanoraptor
Allosauridae Marsh 1879 Jugal does not participate in internal antorbital 
fenestra; occipital condyle constricted neck; rostral ramus of surangular deep; 
dorsal column subequal to femur length; metacarpal IV absent; pubic boot 
present, greater than 30% as long as pubic shaft; pubic-ischial contact only narrow 
region; lateroproximal condyle of tibia with conspicuous waisting between 
condyle body and main tibia body in proximal view (Holtz 2000)
Alashansaurus Chure 2000 nomen manuscriptum incertae sedis
Monolophosaurus Dong 1992 nomen nudum
Monolophosaurus Zhao & Currie 1994
Allosaurus Marsh 1877 Pm 5; large,  mediolaterally compressed, dorsally 
projecting cornual process of lacrimal; dorsal wall of maxillary antrum fenestrate; 
interdental mandibular foramen along caudoventral margin of of prearticular; 
no deeply concave "pocket" on ventral surface of ectopterygoid flange; 
spindle-shaped foramen on lateral surface of sacral centrum four; distal caudal 
vertebrae with moderate interlocking, prezygapophyses extending more than 50%, but 
less than one, centrum length; scapular with wide distal expansion, subequal 
in width to proximal end; obturator process of ischium with long, cranially 
directed lamina of bone extending cranially to level of pubic-ischiadic contact; 
distal pubis longer cranially than caudally, in ventral view pubis distal end 
is triangular (Pickering 1996, Holtz 2000, Chure 2000)
= Apatodon Marsh 1877
= Creosaurus Marsh 1878
= Epanterias Cope 1878
= Labrosaurus Marsh 1879
= Saurophagus Stovall in Ray 1941/Saurophagus Swainson 1831
= Saurophaganax Chure 1995
= Neovenator Naish 1996 nomen nudum
= Neovenator Hutt, Martill, Barker 1996
Allosaurus fragilis Marsh 1877 Skull high, short; lacrimals with sharply 
pointed apexes; cornual process with two large pneumatic recesses which open 
laterally; ventral margin of jugal deflected ventrally at midlength such that 
ventral margin is not straight; metacarpal I proportionately shorter than in 
Allosaurus whitei (Pickering 1996, Chure 2000)

Alosaurus whitei Pickering 1995 nomen nudum
= Allosaurus whitei Pickering 1996
= Allosaurus jimmadseni Chure 2000 nomen manuscriptum DINO 11541
Jurassic, Tithonian, Upper Morrison Formation, Wyoming, Utah, Colorado
Type specimen: AMNH 666
Paratype: AMNH 5753
Referred specimens: AMNH 275, AMNH 290, AMNH 324, AMNH 496,  AMNH 507, AMNH 
600, AMNH 680, AMNH 704, AMNH 726, AMNH 728, AMNH 736-737, AMNH 813, AMNH 851, 
AMNH 5752, AMNH 6125, AMNH 6128; MCZ 3897; DINO 2560 (= UUVP 6000), DINO 11541
REVISED DIAGNOSIS: skull long, low; row of neurovascular foramina pierce 
maxillary region forming medioventral wall of maxillary antorbital fossa in 
lateral view; lacrimals with bluntly rounded apexes; axial intercentrum rotated 
dorsally and with flared rim; pubis obturator notch craniocaudally elongate, 
cranially directed triangular process arises from caudal and medioventral corner; 
proximal caudal vertebrae neural spines with accessory ossifications along 
cranial and caudal margins, giving spines rectangular outline in lateral view & 
obscuring beveled cranial margin of spine; elongate proximolateral corner on 
pedal III-2 (Pickering 1996, Chure 2000)

STEPHAN PICKERING / Chofetz Chayim ben-Avraham
The Dinosaur Fractals Project
2333 Portola Drive # 4
Santa Cruz, California 95062-4250 USA
stephanpickering@cs.com
website: http://groups.yahoo.com/group/paleo_bio_dinosaur_ontology
theropod research summarized: <www.dinodata.net> see under PICKERING at their 
Reference Base

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<HTML><FONT FACE=3Darial,helvetica><FONT  SIZE=3D3 FAMILY=3D"SERIF" FACE=3D"=
Times New Roman" LANG=3D"0">Avetheropoda Paul 1988
<BR>Carnosauria von Huene 1920
<BR>Allosauroidea <I>Pneumatic excavation of ascending ramus of maxilla; nar=
ial prominences comprised of paired ridges along lateral edges of nasals; la=
crimal recess, single opening present; postorbital prominences present; quad=
rate articultion projects well ventral of ventral surface of maxilla; horizo=
ntal shelf on lateral surface of surangular, rostroventral to mandibule cond=
yle, prominent and pendant; caudal dorsal neural spines oriented cranially;=20=
pubic boot triangular (apex caudal) in ventral view, acute angle between sha=
ft and caudal portion of boot </I>(Holtz 2000)
<BR><I>Piatnitzkysaurus </I>Bonaparte 1979
<BR><I>Acrocanthosaurus </I>Langston 1947 <I>nomen manuscriptum
<BR>Acrocanthosaurus </I>Stovall &amp; Langston 1950
<BR><I>Giganotosaurus </I>Coria 1994 <I>nomen nudum
<BR>Giganotosaurus </I>Coria &amp; Salgado 1995<I>
<BR>Carcharodontosaurus </I>Stromer 1931<I>
<BR></I>Sinraptoridae <I>Yangchuanosaurus, Sinraptor, Szechuanoraptor
<BR></I>Allosauridae Marsh 1879 <I>Jugal does not participate in internal an=
torbital fenestra; occipital condyle constricted neck; rostral ramus of sura=
ngular deep; dorsal column subequal to femur length; metacarpal IV absent; p=
ubic boot present, greater than 30% as long as pubic shaft; pubic-ischial co=
ntact only narrow region; lateroproximal condyle of tibia with conspicuous w=
aisting between condyle body and main tibia body in proximal view </I>(Holtz=
 2000)
<BR><I>Alashansaurus </I>Chure 2000 <I>nomen manuscriptum incertae sedis</I>
<BR><I>Monolophosaurus </I>Dong 1992 <I>nomen nudum
<BR>Monolophosaurus </I>Zhao &amp; Currie 1994<I>
<BR>Allosaurus </I>Marsh 1877 <I>Pm 5; large, &nbsp;mediolaterally compresse=
d, dorsally projecting cornual process of lacrimal; dorsal wall of maxillary=
 antrum fenestrate; interdental mandibular foramen along caudoventral margin=
 of of prearticular; no deeply concave "pocket" on ventral surface of ectopt=
erygoid flange; spindle-shaped foramen on lateral surface of sacral centrum=20=
four; distal caudal vertebrae with moderate interlocking, prezygapophyses ex=
tending more than 50%, but less than one, centrum length; scapular with wide=
 distal expansion, subequal in width to proximal end; obturator process of i=
schium with long, cranially directed lamina of bone extending cranially to l=
evel of pubic-ischiadic contact; distal pubis longer cranially than caudally=
, in ventral view pubis distal end is triangular </I>(Pickering 1996, Holtz=20=
2000, Chure 2000)
<BR>=3D<I> Apatodon</I> Marsh 1877
<BR>=3D <I>Creosaurus </I>Marsh 1878
<BR>=3D <I>Epanterias </I>Cope 1878
<BR><I>=3D Labrosaurus </I>Marsh 1879
<BR>=3D<I> Saurophagus </I>Stovall in Ray 1941/<I>Saurophagus </I>Swainson 1=
831
<BR>=3D <I>Saurophaganax </I>Chure 1995
<BR>=3D <I>Neovenator </I>Naish 1996 <I>nomen nudum
<BR>=3D Neovenator </I>Hutt, Martill, Barker 1996
<BR><I>Allosaurus fragilis </I>Marsh 1877 <I>Skull high, short; lacrimals wi=
th sharply pointed apexes; cornual process with two large pneumatic recesses=
 which open laterally; ventral margin of jugal deflected ventrally at midlen=
gth such that ventral margin is not straight; metacarpal I proportionately s=
horter than in <U>Allosaurus whitei</U> </I>(Pickering 1996, Chure 2000)
<BR>
<BR><I>Alosaurus whitei </I>Pickering 1995 <I>nomen nudum</I>
<BR>=3D <I>Allosaurus whitei </I>Pickering 1996
<BR>=3D <I>Allosaurus jimmadseni </I>Chure 2000 <I>nomen manuscriptum </I>DI=
NO 11541
<BR>Jurassic, Tithonian, Upper Morrison Formation, Wyoming, Utah, Colorado
<BR>Type specimen: AMNH 666
<BR>Paratype: AMNH 5753
<BR>Referred specimens: AMNH 275, AMNH 290, AMNH 324, AMNH 496, &nbsp;AMNH 5=
07, AMNH 600, AMNH 680, AMNH 704, AMNH 726, AMNH 728, AMNH 736-737, AMNH 813=
, AMNH 851, AMNH 5752, AMNH 6125, AMNH 6128; MCZ 3897; DINO 2560 (=3D UUVP 6=
000), DINO 11541
<BR><I>REVISED DIAGNOSIS: skull long, low; row of neurovascular foramina pie=
rce maxillary region forming medioventral wall of maxillary antorbital fossa=
 in lateral view; lacrimals with bluntly rounded apexes; axial intercentrum=20=
rotated dorsally and with flared rim; pubis obturator notch craniocaudally e=
longate, cranially directed triangular process arises from caudal and mediov=
entral corner; proximal caudal vertebrae neural spines with accessory ossifi=
cations along cranial and caudal margins, giving spines rectangular outline=20=
in lateral view &amp; obscuring beveled cranial margin of spine; elongate pr=
oximolateral corner on pedal III-2 </I>(Pickering 1996, Chure 2000)</FONT><F=
ONT  COLOR=3D"#000000" SIZE=3D2 FAMILY=3D"SANSSERIF" FACE=3D"Arial" LANG=3D"=
0">
<BR>
<BR></FONT><FONT  COLOR=3D"#000000" SIZE=3D1 FAMILY=3D"SERIF" FACE=3D"Georgi=
a" LANG=3D"0"><B>STEPHAN PICKERING / Chofetz Chayim ben-Avraham
<BR>The Dinosaur Fractals Project
<BR>2333 Portola Drive # 4
<BR>Santa Cruz, California 95062-4250 USA
<BR>stephanpickering@cs.com
<BR>website: http://groups.yahoo.com/group/paleo_bio_dinosaur_ontology
<BR>theropod research summarized: &lt;www.dinodata.net&gt; see under PICKERI=
NG at their Reference Base</B></FONT></HTML>

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