Aves, incertae sedis
Figure9g
Referred Material.—Distal end of left femur, NJSM 12119.
Locality and Horizon.—Inversand Company marl pit, Sewell, Gloucester County, New Jersey; from processed spoil piles, precise stratum unknown; collected 12 December 1981 by Cynthia Miller. Presumably from the Hornerstown Formation but could be either Late Cretaceous or Paleocene.
Measurements(in mm).—Distal width 4.3, distal depth 3.8.
Comparisons.—This is also from a very small bird, possibly the same size as the species represented by the preceding ulna (ANSP 15713;Figure 9e,f) but probably somewhat larger. It is characterized by an extremely well-developed tubercle for the attachment of M. gastrocnemius lateralis. A perfunctory perusal of modern taxa revealed nothing similar.