“By plotting the lengths of femora, tibiae and metatarsi onto ternary diagrams, Daniel Elvidge and David Unwin found that pterosaurs occupied a tight, compact group of data points within morphospace, and a ‘data cloud’ similar in size to that occupied by bats.”
“Their elongate, fused metatarsi thus bears three distinct distal condyles and look, at least superficially, remarkably like the tarsometatarsi of birds.”
“The quadriceps group of muscles is assisted by the anterior digital extensor (extensor pedis) peroneus tertius and tibialis anticus (flexor metatarsi) muscles.”
“The latter pair (flexor metatarsi, muscular and tendinous portions, because of their attachment to the external condyle of the femur and to the metatarsal bone) are enabled to automatically flex the tarsal joint when the stifle is flexed.”
“Abductor ossis metatarsi quinti, origin external tubercle of the calcaneus, insertion into tuberosity of the fifth metatarsal bone in common with or beneath the outer margin of the plantar fascia.”
“Extensor ossis metatarsi hallucis, a small muscle, sometimes found as a slip from the Extensor hallucis longus, or from the Tibialis anterior, or from the Extensor digitorum longus, or as a distinct muscle; it traverses the same compartment of the transverse ligament with the Extensor hallucis longus.”
“You see, sir, -- and he went on with elytra and antennae and tarsi and metatarsi and tracheae and stomata and wing-muscles and leg-muscles and ganglions, -- all plain enough, I do not doubt, to those accustomed to handling dor-bugs and squash-bugs and such undesirable objects of affection to all but naturalists.”
“I have paid all the attention I am capable of to their geological site; but of course it is too long a story for here. 1st, I have the tarsi and metatarsi very perfect of a Cavia; 2nd, the upper jaw and head of some very large animal with four square hollow molars and the head greatly protruded in front.”
“The Penguin duck is the most remarkable of all the breeds; the thin neck and body are carried erect; the wings are small; the tail is upturned; and the thigh-bones and metatarsi are considerably lengthened in proportion with the same bones in the wild duck.”
“Their feet have four toes at the end of elongated metatarsi that they rest on when standing.”
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