Where is the pectoral girdle on this pterosaur?

This is a game
to see how sharp-eyed you are. Below is Rhamphorhynchus intermedius in situ, virtually completely articulated. Even so, you might have difficulty finding the elements of the pectoral girdle here (Fig. 1).

Figure 1. Rhamphorhynchus intermedius. Where are the pectoral girdle elements. Scroll down for one interpretation.

Figure 1. Rhamphorhynchus intermedius. Where are the pectoral girdle elements. Scroll down for one interpretation.

Scroll down to see one interpretation.

Down.

Down.

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Here is one solution (Fig. 2):

Figure 2. Rhamphorhynchus intermedius with pectoral elements colorized. See how much easier it is when the bones have color added? How well did your interpretation match?

Figure 2. Rhamphorhynchus intermedius with pectoral elements colorized. See how much easier it is when the bones have color added? How well did your interpretation match? Scapula in red. Coracoids in green. Sternal complex in yellow. Humerus in blue.

Let DGS (Digital Graphic Segregation) work for you.
During crushing the coracoids criss-crossed. The posterior gastralia shifted forwards and overlying matrix slightly obscures the rostral profile. Otherwise, it’s all there, including a meal at the rear of its gut.

References
Koh TP 1937. Unterscuchungen über die Gattung Ramphorhynchus. – Neues Jahrbuch Mineralogie, Geologie und Palaeontologie, Beilage-Band 77: 455-506.
Wellnhofer P 1975a-c. Teil I. Die Rhamphorhynchoidea (Pterosauria) der Oberjura-Plattenkalke Süddeutschlands. Allgemeine Skelettmorphologie. Paleontographica A 148: 1-33.Teil II. Systematische Beschreibung. Paleontographica A 148: 132-186. Teil III. Paläokolgie und Stammesgeschichte. Palaeontographica 149: 1-30.

wiki/Rhamphorhynchus

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