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Micrabacia hilgardi Stephenson, 1916 
Remarks - Collector: Theodore Bernhardt Jr.
- Formation: Monmouth Group, Mount Laurel Formation
- Location: New Castle County, DE
General Info Synonyms (older names and misidentifications in the literature) - 1916 Micrabacia hilgardi Stephenson
- 1916 Micrabacia hilgardi Stephenson; Stephenson
- 1926 Micrabacia hilgardi Stephenson; Wade
- 1928 Micrabacia hilgardi n. sp. Stephenson; Whitney
- 1933 Micrabacia hilgardi Stephenson; Wells
- 1944 Micrabacia hilgardi Stephenson; Shimer & Shrock
- 1951 Micrabacia hilgardi Stephenson; Perkins
- 1963 Micrabacia hilgardi Stephenson; Richards
- 1976 Micrabacia cf. hilgardi Stephenson; Lommerzheim
- 1981 Micrabacia hilgardi Stephenson; Kuzmicheva
- 1987 Micrabacia hilgardi Stephenson; Kuzmicheva
- 1991 Micrabacia hilgardi Stephenson; Cairns
- 1995 Micrabacia cf. hilgardi Stephenson; Scheer & Stottrop
- 2002 Micrabacia hilgardi Stephenson; Loeser
Stratigraphic Occurrence - Monmouth Group, Mount Laurel Formation of Delaware
Age - The Mount Laurel Formation ranges from about the Didymoceras nebrascensis (Meek & Hayden) to D. cheyennense (Meek & Hayden) Western Interior zones, early Late Campanian Stage (~74 mya).
Geographic Occurrence (not an all-inclusive list) - New Castle County, DE
- Union County, MS
Remarks For identification, descriptions, and ranges, see: Lauginiger, E. M. 1988. Cretaceous Fossils form the Chesapeake and Delaware Canal, A Guide for Student Collectors. Delaware Geological Survey Special Publication 18, 16, plate 1, fig. 5. -
Löser, H., et al. 2002. Catalogue of Cretaceous Corals 2. List of Citations (L–Z), Glossary, References. Dresden: CPress Verlag, 416. -
Shimer, H. W.; Shrock, R. R. 1944. Index Fossils of North America. New York: John Wiley & Sons, 117; plate 43, fig's 14 & 15 (M. cribraria Stephenson); plate 43, fig's 11–13 (M. rotatilis Stephenson); plate 43, fig's 7–10 (M. hilgardi Stephenson). -
Stephenson, L. W. 1916. North American Upper Cretaceous Corals of the Genus Micrabacia. United States Geological Survey Professional Paper 98-J, 115–131 (key paper). -
Stephenson, L. W. 1916. "Coelenterata, Anthozoa". In: Clark, W. B. The Upper Cretaceous Deposits of Maryland. Maryland Geological Survey. Baltimore: Johns Hopkins, 753–757 (differences between M. hilgardi and the others briefly commented on); plate XLVIII, fig's 1–4 (M. marylandica Stephenson, 1916); plate XLIX, fig's 1–4 (M. rotatilis Stephenson, 1916).
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