Basioccipital weakly sutured to exoccipital and you may prootic; vertebral-including combined which have earliest centrum

Cranial articulation regarding hyomandibula plus slender anterodorsal procedure abutting poor ridge for the sphenotic before hyomandibular facet; enough time, softly circular condyle expressing which have hyomandibular aspect of sphenotic and you can pterotic; together with quick, vertically-truncate posterodorsal body articulating that have pterotic behind hyomandibular part

Articulation website for the basioccipital getting ossified Baudelot’s ligament elevated and you can rugose. Exoccipital weakly sutures that have basioccipital, prootic, pterotic and you will epioccipital; contributing quick dorsal technique to cranial articulation having Baudelot’s tendon; vagal foramen high, circular, ventrally directed, considering a straight through the anterior edge of basioccipital-Baudelot’s tendon combined. Baudelot’s ligament regarding supracleithrum ossified and you will heavier; round into the section medially close connection with basioccipital and you can exoccipital. Exoccipital and you can epioccipital forming sharp posterolateral corner out of braincase one to vertically buttresses stretched cranial articulation from pteroticsupracleithrum. Anterolateral face out of epioccipital concave and you will weakly sutured so you can pterotic. Posterior avoid of pterotic wing produced and expanded ventral in order to cranial articulation of supracleithrum. Ventral edge of supraoccipital posterior procedure that have solid average straight keel.

Suspensorium ( Fig. 5k, l). Hyomandibula wide and you may deep, sutured to help you preopercle thru lateroposterior flange, and you may metapterygoid through greater prior processes; anteriorly sutured and you may posteriorly synconchondrally jointed to quadrate. Horizontal deal with that have reduced, oblique go up ranging from prior processes and you will preopercular flange, establishing attachment limitation off interior packages out-of adductor mandibulae strength. Low crest to the medioposterior line ventral in order to pterotic articulation, if not no expanded showing processes or muscles provider crests dorsal in order to opercle condyle. Opercle condyle dependent some over midpoint to your rear dentro de from face tunnel centrally located into prior body away from adductor muscle tissue crest within quantity of opercle condyle; medial foramen out-of face canal anteriorly located significantly more than adductor arcus palatini crest. Medial deal with with located straight and crescentic adductor arcus palatini scar alot more common compared to modern P. hemioliopterus ( Fig. 5m) it is figure and you may location comparable.

Preopercle sutured to quadrate and additionally hyomandibula; horizontal deal with shallowly concave creating fossa getting rear sections of adductor mandibulae strength; rear margin increased in the a soft contour and you will almost certainly which have sensory tunnel however, zero discernable lateralis skin pores; no proof exterior foramen getting symplectic canal, but medial foramen off symplectic canal expose ranging from quadrate and you will preopercle.

Quadrate horizontal deal with mainly shallowly concave; anteroventral knife generally sutured to help you metapterygoid; mandibular condyle large and firmly bilobed flanking main saddle, medial lobe out of condyle braced from the straight buttress.

Weberian state-of-the-art without common middle-dorsal straight lamina; neural arch-back complex incompletely preserved however, anteriorly projecting to contact supraoccipital and you may exoccipitals

Prior spinal vertebrae ( Fig. 3b). Very first centrum articulated so you’re able to basioccipital and significantly sutured in order to material or Weberian state-of-the-art centrum (2-4). Aortic groove discover collectively midventral line, flanked from the low parallel ridges together first and substance centra; broken ahead of centrum away from vertebra 5. Indistinct bits of tripus and you will reasonable operating-system suspensorium stay in lay; anterior limbs out-of transverse processes see substance centrum during the right angle, large and you can thickened sideways, generally contacting ventral articulation flange out-of supracleithrum; vertebra 5 indeterminate.

Pectoral girdle ( Figs. 5 age, f, g). Dorsal revealing process of cleithrum bifid, anterior limb longest, and you may total similar in proportions to postcleithral procedure; postcleithral processes deep and you can nearly equilaterally triangular, coarsely ornamented specifically with each other ventral and ventrolateral corners horizontal to articulating fossa regarding pectoral spine. During the ventral take a look at outward pouch out-of cleithrum within the transverse positioning which have posterior limitation off articulating fossa regarding pectoral lower back. Mesocoracoid perhaps not maintained but increased body close dorsal side of coracoid suggests the articulation webpages. Coracoid keel firmly elevated proximally, stretching from the midway so you can pectoral symphysis; coracoid keel splits jointed horizontal branches regarding cleithrum and you may coracoid to the equal halves; a couple of synchronous ridges focus on to your midline horizontal branches out-of coracoid.